NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = R.V.Janssens Found 778 matches. Showing 1 to 100. [Next]2024PR03 Phys.Rev. C 109, 034301 (2024) M.Prajapati, S.Nag, A.K.Singh, A.Al-Khatib, H.Hubel, A.Neusser-Neffgen, G.B.Hagemann, G.Sletten, B.Herskind, C.R.Hansen, G.Benzoni, A.Bracco, R.V.F.Janssens, M.P.Carpenter, P.Chowdhury Possible wobbling phenomenon in 125Xe
doi: 10.1103/PhysRevC.109.034301
2024SA09 Phys.Rev. C 109, 024319 (2024) A.Saracino, S.Zhu, N.Sensharma, A.D.Ayangeakaa, R.V.F.Janssens, Q.B.Chen, M.P.Carpenter, P.Chowdhury, A.Gade, F.G.Kondev, T.M.Kowalewski, T.Lauritsen, E.A.McCutchan, D.Seweryniak Collective modes of excitation in 64Cu
doi: 10.1103/PhysRevC.109.024319
2024WU04 Phys.Rev. C 109, 024314 (2024) J.Wu, M.P.Carpenter, F.G.Kondev, R.V.F.Janssens, S.Zhu, E.A.McCutchan, A.D.Ayangeakaa, J.Chen, J.Clark, D.J.Hartley, T.Lauritsen, N.Pietralla, G.Savard, D.Seweryniak, V.Werner Determination of the spins and parities for the 04+ and 05+ states in 100Zr
doi: 10.1103/PhysRevC.109.024314
2023AY02 Phys.Rev. C 107, 044314 (2023) A.D.Ayangeakaa, R.V.F.Janssens, S.Zhu, J.M.Allmond, B.A.Brown, C.Y.Wu, M.Albers, K.Auranen, B.Bucher, M.P.Carpenter, P.Chowdhury, D.Cline, H.L.Crawford, P.Fallon, A.M.Forney, A.Gade, D.J.Hartley, A.B.Hayes, J.Henderson, F.G.Kondev, Krishichayan, T.Lauritsen, J.Li, D.Little, A.O.Macchiavelli, D.Rhodes, D.Seweryniak, S.M.Stolze, W.B.Walters, J.Wu Triaxiality and the nature of low-energy excitations in 76Ge NUCLEAR REACTIONS 208Pb(76Ge, 76Ge'), E=291, 304, 317 MeV; measured Eγ, Iγ, (76Ge)γ-coin using the GRETINA array with 28 Ge crystals in one experiment at 304-MeV beam energy, and 42 Ge crystals in a second experiment at 291- and 317-MeV beam energies, both in coincidence with scattered particles detected by using the CHICO2 array of position-sensitive parallel plate avalanche counters at the ATLAS-ANL facility. 76Ge; deduced levels, Jπ, γ-ray and Coulomb excitation yields analyzed by using the semiclassical, coupled-channel, Coulomb excitation least-squares code GOSIA, constrained by certain previouly known experimental nuclear structure parameters, E2, M1, E1 and E3 matrix elements, B(E2), B(M1), B(E1) and B(E3), spectroscopic quadrupole moments for five excited states, and evidence for rigid triaxial deformation at low excitation energies in 76Ge, and magnitudes of the quadrupole invariants Q+2, and expectation values of the quadrupole asymmetry parameters cos(3γ) for the members of the ground-state and the γ bands. Comparison with configuration interaction shell-model calculations and generalized triaxial rotor model, and with previous experimental data.
doi: 10.1103/PhysRevC.107.044314
2023CA13 Phys.Rev. C 108, 035807 (2023) L.Canete, D.T.Doherty, G.Lotay, D.Seweryniak, C.M.Campbell, M.P.Carpenter, W.N.Catford, K.A.Chipps, J.Henderson, R.G.Izzard, R.V.F.Janssens, H.Jayatissa, J.Jose, A.R.L.Kennington, F.G.Kondev, A.Korichi, T.Lauritsen, C.Muller-Gatermann, C.Paxman, Zs.Podolyak, B.J.Reed, P.H.Regan, W.Reviol, M.Siciliano, G.L.Wilson, R.Yates, S.Zhu Confirmation of a new resonance in 26Si and contribution of classical novae to the galactic abundance of 26Al
doi: 10.1103/PhysRevC.108.035807
2023CR03 Nucl.Instrum.Methods Phys.Res. A1055, 168525 (2023) B.P.Crider, C.J.Prokop, S.N.Liddick, H.M.Albers, M.Alshudifat, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Chen, C.J.Chiara, A.C.Dombos, S.Go, R.Grzywacz, J.Harker, R.V.F.Janssens, N.Larson, T.Lauritsen, R.Lewis, S.J.Quinn, F.Recchia, D.Seweryniak, A.Spyrou, S.Suchyta, W.B.Walters, S.Zhu New method for level-lifetime measurements with thick scintillators NUCLEAR REACTIONS 9Be(76Ge, X)68Ni/68Zn/69Ni/70Ni, E=140 MeV/nucleon; measured reaction products, Eγ, Iγ, Eβ, Iβ, βγ-coin.; deduced γ-ray energies, level T1/2. Comparison with available data. The National Superconducting Cyclotron Laboratory (NSCL), the coupled cyclotron facility.
doi: 10.1016/j.nima.2023.168525
2023DE27 Eur.Phys.J. A 59, 198 (2023) J.Deary, M.Scheck, R.Schwengner, D.O'Donnell, D.Bemmerer, R.Beyer, Th.Hensel, A.R.Junghans, T.Kogler, S.E.Muller, K.Romer, K.Schmidt, S.Turkat, S.Urlass, A.Wagner, M.Bowry, P.Adsley, O.Agar, R.Chapman, F.C.L.Crespi, D.T.Doherty, U.Friman-Gayer, R.-D.Herzberg, J.Isaak, R.V.F.Janssens, T.Kroll, B.Loher, B.S.Nara Singh, P.von Neumann-Cosel, L.Pellegri, E.E.Peters, G.Rainovski, D.Savran, J.F.Smith, M.Spieker, P.G.Thirolf, S.Triambak, W.Tornow, M.Venhart, M.Wiedeking, O.Wieland, S.W.Yates, A.Zilges Photo-response of the N = Z nucleus 24Mg NUCLEAR REACTIONS 24Mg(γ, γ'), E<13 MeV; measured reaction products, Eγ, Iγ; deduced energy-integrated scattering σ, B(M1), B(E1). Comparison with available data. The ELBE accelerator of the Helmholtz-Zentrum Dresden-Rossendorf.
doi: 10.1140/epja/s10050-023-01111-7
2023JO08 Phys.Rev. C 108, 024315 (2023) S.R.Johnson, R.V.F.Janssens, U.Friman-Gayer, B.A.Brown, B.P.Crider, S.W.Finch, Krishichayan, D.R.Little, S.Mukhopadhyay, E.E.Peters, A.P.D.Ramirez, J.A.Silano, A.P.Tonchev, W.Tornow, S.W.Yates Testing shell-model interactions at high excitation energy and low spin: Nuclear resonance fluorescence in 74Ge NUCLEAR REACTIONS 74Ge(polarized γ, γ'), E=3.1-5.44 MeV; measured Eγ, Iγ, γ(θ); deduced integrated exclusive scattering σ(E). 74Ge; deduced levels, J, π, branching ratios, transition intensities. Comparison to large-scale shell-model calculations with jj44b and JUN45 effective interactions. γ3-setup consisting of 6 HPGe detectors. Quasi-monoenergetic linearly polarized photon beams produced via Compton backscattering and provided by the High Intensity Gamma-Ray Source at TUNL.
doi: 10.1103/PhysRevC.108.024315
2023SI08 Phys.Rev. C 107, 054305 (2023) J.Simpson, M.A.Riley, A.Pipidis, E.S.Paul, X.Wang, P.J.Nolan, J.F.Sharpey-Schafer, A.Aguilar, D.E.Appelbe, A.D.Ayangeakaa, A.J.Boston, H.C.Boston, D.B.Campbell, M.P.Carpenter, C.J.Chiara, P.T.W.Choy, R.M.Clark, M.Cromaz, A.O.Evans, P.Fallon, U.Garg, A.Gorgen, D.J.Hartley, R.V.F.Janssens, D.T.Joss, D.S.Judson, F.G.Kondev, T.Lauritsen, I.Y.Lee, A.O.Macchiavelli, J.T.Matta, J.Ollier, M.Petri, J.P.Revill, L.L.Riedinger, S.V.Rigby, C.Teal, P.J.Twin, C.Unsworth, D.Ward, S.Zhu, I.Ragnarsson Evolution of structure and shapes in 158Er to ultrahigh spin NUCLEAR REACTIONS 114Cd(48Ca, 4n)158Er, E=215 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ). 158Er; deduced levels, J, π, high-spin states, angular intensity ratios, δ, B(M1/E2) ratios, nuclear shapes, alignments, rotational bands, configurations, band terminating states and feeding, transition quadrupole moments for triaxial strongly deformed bands, moment of inertia. Comparison with cranked Nilsson-Strutinski calculations. Systematics of triaxial strongly deformed bands in 158Er, 160Er, 152Dy, 163Lu. Gammasphere array of escape-suppressed HPGe detectors at 88-inch cyclotron-LBNL and ATLAS-ANL facilities.
doi: 10.1103/PhysRevC.107.054305
2022AY02 Phys.Rev. C 105, 054315 (2022) A.D.Ayangeakaa, N.Sensharma, M.Fulghieri, R.V.F.Janssens, Q.B.Chen, S.Zhu, M.Alcorta, M.P.Carpenter, P.Chowdhury, A.Gade, C.R.Hoffman, F.G.Kondev, T.Lauritsen, E.A.McCutchan, A.M.Rogers, D.Seweryniak Single-particle and collective excitations in 66Zn NUCLEAR REACTIONS 26Mg(48Ca, 4nα), E=275, 290, 320 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 66Zn; deduced levels, J, π, angular correlation ratios, experimental angular distribution coefficients, δ, rotational bands structure, high-spin states. Comparison to spherical shell-model calculations using the jj44b and JUN45 effective interactions. Experimental data on rotational band is compared to the calculations made within configuration-fixed constrained covariant density functional theory (CDFT) and the quantum particle rotor model (PRM) formalism. Systematics for superderformed bands in 60Zn, 66Zn, 68Zn, 68Ge. Gammasphere array with 101 detectors in conjunction with the fragment mass analyzer (FMA) and a microchannel plate (MCP) detector at ATLAS accelerator (ANL).
doi: 10.1103/PhysRevC.105.054315
2022BE27 Nucl.Instrum.Methods Phys.Res. A1040, 167113 (2022) L.Begley, S.Zhu, M.P.Carpenter, J.T.Anderson, R.V.F.Janssens, T.Lauritsen, E.A.McCutchan, M.B.Oberling, D.Seweryniak, P.Wilt Algorithms of pulse shape analysis for Gammasphere under high count rate conditions
doi: 10.1016/j.nima.2022.167113
2022BO04 Phys.Rev. C 105, 044327 (2022) V.Bothe, S.K.Tandel, S.G.Wahid, P.C.Srivastava, B.Bhoy, P.Chowdhury, R.V.F.Janssens, F.G.Kondev, M.P.Carpenter, T.Lauritsen, D.Seweryniak, S.Zhu Isomers in 203Tl and core excitations built on a five-nucleon-hole structure NUCLEAR REACTIONS 197Au(209Bi, X)203Tl, E=1450 MeV; measured Eγ, Iγ, γγ-coin, γγγ-coin. 203Tl; deduced levels, J, π, multipolarities, T1/2 of high-spin isomeric states, configurations. Half-lives determined by centroid-shift method for ns isomers and by variation with time of the cumulative intensity for υs isomers. Observed octupole core excitations built on a five-nucleon hole configuration. Comparison with shell-model calculations employing the KHH7B effective interaction. Gammasphere array with 100 detectors at ATLAS accelerator (ANL).
doi: 10.1103/PhysRevC.105.044327
2022CR04 Phys.Rev. C 106, L061303 (2022) H.L.Crawford, M.D.Jones, A.O.Macchiavelli, P.Fallon, D.Bazin, P.C.Bender, B.A.Brown, C.M.Campbell, R.M.Clark, M.Cromaz, B.Elman, A.Gade, J.D.Holt, R.V.F.Janssens, I.Y.Lee, B.Longfellow, S.Paschalis, M.Petri, A.L.Richard, M.Salathe, J.A.Tostevin, D.Weisshaar Core of 25F studied by the 25F(-p) proton-removal reaction NUCLEAR REACTIONS 9Be(25F, 24O), E=77 MeV/nucleon; measured reaction products; deduced longitudinal momentum distribution, proton removal σ, spectroscopic factor. Results are interpreted within the framework of the Particle-Vibration Coupling (PVC) model, of a d5/2 proton coupled to a quadrupole phonon of an effective 24O core. Comparison to shell model predictions. Reaction products analyzed by spectrometer S800 (NSCL). Secondary 25F beam from 48Ca fragmentation on Be target at accelerated through the Coupled Cyclotron Facility.
doi: 10.1103/PhysRevC.106.L061303
2022GR04 Phys.Rev. C 106, 014308 (2022) D.Gribble, C.Iliadis, R.V.F.Janssens, U.Friman-Gayer, Krishichayan, S.Finch Investigation of 11B and 40Ca levels at 8-9 MeV by nuclear resonance fluorescence NUCLEAR REACTIONS 11B, 40Ca(polarized γ, γ'), E=8-9 MeV nearly monoenergetic and linearly polarized photon beams from the HIγS facility at TUNL; measured Eγ, Iγ, γ(θ, pol) using three HPGe detectors. 11B, 40Ca; deduced levels, J, π, polarization asymmetries, and branching ratios. 11B; analyzed γ-ray multipolarity mixing ratios using (polarized γ, γ') data from the present experiment and those from 2009Ru04: Phys. Rev. C 79, 047601. Discussed relationship of different phase conventions in nuclear resonance fluorescence (NRF) experiments.
doi: 10.1103/PhysRevC.106.014308
2022GR08 Phys.Lett. B 834, 137446 (2022) T.J.Gray, J.M.Allmond, R.V.F.Janssens, W.Korten, A.E.Stuchbery, J.L.Wood, A.D.Ayangeakaa, S.Bottoni, B.M.Bucher, C.M.Campbell, M.P.Carpenter, H.L.Crawford, H.David, D.T.Doherty, P.Fallon, M.T.Febbraro, A.Galindo-Uribarri, C.J.Gross, M.Komorowska, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, P.Napiorkowsi, E.Padilla-Rodal, S.D.Pain, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, C.Y.Wu, C.-H.Yu, S.Zhu E2 rotational invariants of 01+ and 21+ states for 106Cd: The emergence of collective rotation NUCLEAR REACTIONS 208Pb(106Cd, 106Cd'), E=3.849 MeV/nucleon; measured Doppler-corrected γ-ray spectra, Eγ, Iγ, (106Cd)γ-coin using GRETINA array with 32 HPGe crystals for γ detection, and CHICO array for particles at the ATLAS-ANL facility. 106Cd; deduced levels, J, π, E2 and E3 matrix elements using GOSIA analysis code, E2 transition strengths, spectroscopic quadrupole moments, electric quadrupole invariants (Kumar-Cline sum rules) Q3cos(3δ), axial-symmetry parameter δ. Comparison with beyond mean-field (BMF) and shell-model calculations, and with previous experimental data.
doi: 10.1016/j.physletb.2022.137446
2022HA01 Phys.Rev. C 105, 014301 (2022) D.J.Hartley, F.G.Kondev, M.P.Carpenter, R.V.F.Janssens, M.A.Riley, K.Villafana, K.Auranen, A.D.Ayangeakaa, J.S.Baron, A.J.Boston, J.A.Clark, J.P.Greene, J.Heery, C.R.Hoffman, T.Lauritsen, J.Li, D.Little, E.S.Paul, G.Savard, D.Seweryniak, J.Simpson, S.Stolze, G.L.Wilson, J.Wu, S.Zhu νi13/2 structures in 155Sm and 159Gd: Supporting evidence of a Z=60 deformed subshell gap NUCLEAR REACTIONS 154Sm(160Gd, n), E=1000 MeV from the ATLAS facility of the Argonne National Laboratory. Measured Eγ, Iγ, γγ-coin using Gammasphere array with 73 Compton-suppressed HPGe detectors. 155Sm, 159Gd; deduced high-spin levels, J, π, νi13/2 bands, with the two signature partners, alignments and signature splitting. Discussed systematics of νi13/2 structures in N=91, 93, 95, and 97 isotopes: 153,155,157Sm, 155,157,159Gd, 157,159,161Dy, 151Ce, 153,155Nd, 161,163Er, 163,165Yb.
doi: 10.1103/PhysRevC.105.014301
2022HO01 J.Phys.(London) G49, 010502 (2022) C.R.Howell, M.W.Ahmed, A.Afanasev, D.Alesini, J.R.M.Annand, A.Aprahamian, D.L.Balabanski, S.V.Benson, A.Bernstein, C.R.Brune, J.Byrd, B.E.Carlsten, A.E.Champagne, S.Chattopadhyay, D.Davis, E.J.Downie, J.M.Durham, G.Feldman, H.Gao, C.G.R.Geddes, H.W.Griesshammer, R.Hajima, H.Hao, D.Hornidge, J.Isaak, R.V.F.Janssens, D.P.Kendellen, M.Kovash, P.P.Martel, U.-G.Meissner, R.Miskimen, B.Pasquini, D.R.Phillips, N.Pietralla, D.Savran, M.R.Schindler, M.H.Sikora, W.M.Snow, R.P.Springer, C.Sun, C.Tang, B.Tiburzi, A.P.Tonchev, W.Tornow, C.A.Ur, D.Wang, H.R.Weller, V.Werner, Y.K.Wu, J.Yan, Z.Zhao, A.Zilges, F.Z.Zomer International workshop on next generation gamma-ray source
doi: 10.1088/1361-6471/ac2827
2022LI54 Phys.Rev. C 106, 044313 (2022) D.Little, A.D.Ayangeakaa, R.V.F.Janssens, S.Zhu, Y.Tsunoda, T.Otsuka, B.A.Brown, M.P.Carpenter, A.Gade, D.Rhodes, C.R.Hoffman, F.G.Kondev, T.Lauritsen, D.Seweryniak, J.Wu, J.Henderson, C.Y.Wu, P.Chowdhury, P.C.Bender, A.M.Forney, W.B.Walters Multistep Coulomb excitation of 64Ni: Shape coexistence and nature of low-spin excitations NUCLEAR REACTIONS 208Pb(64Ni, 64Ni'), E=272 MeV; measured reaction products, time-of-flight difference between the projectile and target recoils as a function of scattering angle, Eγ, Iγ, (particle)γ-coin, Coulomb-excitation yields using GRETINA array with 12 modules of 48 highly-segmented coaxial HPGe crystals for γ detection, and CHICO2 array of 20 position-sensitive parallel-plate avalanche counters for the detection of scattered particles at the ATLAS-ANL facility. Multistep safe Coulomb-excitation. 64Ni; deduced levels, J, π, E2 matrix elements using GOSIA least-squares fitting code, B(E2), spectroscopic electric quadrupole moments, evidence for triple shape coexistence. Comparison with previous experimental results, and with Monte Carlo shell-model (MCSM), and conventional shell-model calculations. NUCLEAR STRUCTURE 64Ni; calculated levels, J, π, B(E2), spectroscopic quadrupole moments, proton and neutron orbital occupancies for 2+ and 0+ states using Monte Carlo shell-model (MCSM), and conventional shell-model calculations with the jj44 and fp effective interactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.106.044313
2022LO05 Phys.Rev. C 105, L042801 (2022) G.Lotay, D.T.Doherty, R.V.F.Janssens, D.Seweryniak, H.M.Albers, S.Almaraz-Calderon, M.P.Carpenter, A.E.Champagne, C.J.Chiara, C.R.Hoffman, C.Iliadis, A.Kankainen, T.Lauritsen, S.Zhu Revised decay properties of the key 93-keV resonance in the 25Mg(p, γ) reaction and its influence on the MgAl cycle in astrophysical environments NUCLEAR REACTIONS 11B(16O, n), E=19 MeV; measured Eγ, Iγ, γ(θ), γγγ-coin. 26Al; deduced levels J, π, branchings. Obtained ground state branching for 93-keV resonance of 25Mg+p system which corresponds to 6398 keV level in 26Al. Comparison to other experimental data. Discussed impact on the production of cosmic γ rays. Gammasphere array with 99 detectors at ATLAS accelerator (ANL).
doi: 10.1103/PhysRevC.105.L042801
2022MO05 Nucl.Instrum.Methods Phys.Res. A1025, 166155 (2022) C.Morse, H.L.Crawford, A.O.Macchiavelli, A.Wiens, M.Albers, A.D.Ayangeakaa, P.C.Bender, C.M.Campbell, M.P.Carpenter, P.Chowdhury, R.M.Clark, M.Cromaz, H.M.David, P.Fallon, R.V.F.Janssens, T.Lauritsen, I.-Y.Lee, C.J.Lister, D.Miller, V.S.Prasher, S.L.Tabor, D.Weisshaar, S.Zhu The polarization sensitivity of GRETINA NUCLEAR REACTIONS 24Mg(p, p'), E=2.45 MeV; measured reaction products, Eγ, Iγ. 25Mg; deduced γ-ray energies, J, π, polar angular distribution.
doi: 10.1016/j.nima.2021.166155
2022RU06 Phys.Rev. C 106, 034318 (2022) J.Rufino, Jr., E.A.McCutchan, S.Zhu, A.A.Sonzogni, M.Alcorta, P.F.Bertone, M.P.Carpenter, J.Clark, C.R.Hoffman, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, C.J.Lister, R.Pardo, A.Rogers, G.Savard, D.Seweryniak, R.Vondrasek β decay of 141Ba RADIOACTIVITY 141Ba(β-)[from β- decay of 141Cs beam produced as fission fragment in 252Cf(SF) at the CARIBU-ANL facility]; measured Eγ, Iγ, γγ-coin, γγ(θ) using the GAMMASPHERE array with 99 Compton-suppressed HPGe detectors. 141La; deduced levels, J, π, multipolarities, multipole mixing ratios, β feedings, logft. Comparison with previous experimental results, including total absorption gamma-spectra (TAGS) data, and with evaluated data in the ENSDF database. Relevance to decay heat in reactors, and reactor antineutrino spectrum. Decay-scheme figure is given in the Supplemental material of the paper.
doi: 10.1103/PhysRevC.106.034318
2022SA39 Phys.Rev. C 106, 044324 (2022) D.Savran, J.Isaak, R.Schwengner, R.Massarczyk, M.Scheck, W.Tornow, G.Battaglia, T.Beck, S.W.Finch, C.Fransen, U.Friman-Gayer, R.Gonzalez, E.Hoemann, R.V.F.Janssens, S.R.Johnson, M.D.Jones, J.Kleemann, Krishichayan, D.R.Little, D.O'Donnell, O.Papst, N.Pietralla, J.Sinclair, V.Werner, O.Wieland, J.Wilhelmy Model-independent determination of the dipole response of 66Zn using quasimonoenergetic and linearly polarized photon beams NUCLEAR REACTIONS 66Zn(polarized γ, γ'), E=5.6-9.9 MeV; measured Eγ, Iγ, γγ-coin; deduced elastic, inelastic and total photoabsorption σ(E), average ground-state branching ratio, ratio of M1 to E1 elastic σ(E). Comparison to other experimental results. γ3-detector setup consisting of HPGe and LaBr3:Ce detectors at HIγS facility of the TUNL at Duke University.
doi: 10.1103/PhysRevC.106.044324
2022SE03 Phys.Rev. C 105, 044315 (2022) N.Sensharma, A.D.Ayangeakaa, R.V.F.Janssens, Q.B.Chen, S.Zhu, M.Alcorta, M.P.Carpenter, E.A.McCutchan, F.G.Kondev, T.Lauritsen, D.Seweryniak, C.R.Hoffman, A.M.Rogers, A.Gade, T.Baugher, P.Chowdhury Single-particle and dipole excitations in 62Co NUCLEAR REACTIONS 26Mg(48Ca, 3np2α), E=275, 290, 320 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. 62Co; deduced levels, J, π, angular correlation ratios, experimental angular distribution coefficients, multipolarities, rotational bands structures. Comparison to shell-model calculations using the GXPF1A two-body effective interaction. Systematics for magnetic rotational bands in 60Co, 61Co, 62Co, 58Fe. Gammasphere array with 101 detectors in conjunction with the fragment mass analyzer (FMA) and a microchannel plate (MCP) detector at ATLAS accelerator (ANL).
doi: 10.1103/PhysRevC.105.044315
2022SU19 Phys.Rev. C 106, 024316 (2022) S.Suman, S.K.Tandel, S.G.Wahid, T.Manu, M.Hemalatha, B.Maheshwari, A.K.Jain, P.Chowdhury, R.V.F.Janssens, F.G.Kondev, M.P.Carpenter, T.Lauritsen, D.Seweryniak Successive neutron alignments in the yrast, negative-parity band of oblate-deformed 199Tl NUCLEAR REACTIONS 197Au(209Bi, X)199Tl, E=1450 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array with 100 Compton-suppressed HPGe detectors at the ATLAS-ANL accelerator facility. 199Tl; deduced high-spin levels, J, π, alignments, signature slitting, B(M1)/B(E2), configurations, oblate deformation. 199Tl; calculated total energy surfaces in (ϵ cosγ, ϵ sinγ) plane, neutron- and proton-quasiparticle levels for oblate deformation as function of angular frequency with principal axis cranking (PAC) and tilted axis cranking (TAC) models using the ultimate cranker (UC) code.
doi: 10.1103/PhysRevC.106.024316
2022WA20 Phys.Lett. B 832, 137262 (2022) S.G.Wahid, S.K.Tandel, S.Suman, P.C.Srivastava, A.Kumar, P.Chowdhury, F.G.Kondev, R.V.F.Janssens, M.P.Carpenter, T.Lauritsen, D.Seweryniak, S.Zhu Emergence of an island of extreme nuclear isomerism at high excitation near 208Pb NUCLEAR REACTIONS 197Au(207Pb, X)204Pb/205Bi/206Bi, E=1430 MeV; 197Au(207Pb, X)204Pb/205Bi/206Bi, E=1450 MeV; measured Eγ, Iγ, γγ-coin, delayed γ spectra, T1/2 of isomers by γγ(t) using pulsed beam from ATLAS-ANL facility, and Gammasphere array for γ detection. 204Pb, 205,206Bi; deduced levels, isomers, J, π, configurations, nuclear isomerism from core-excited configurations in the vicinity of 208Pb. Comparison with shell-model predictions. COMPILATION 93Nb, 93Mo, 140Nd, 144Pm, 148Tb, 212,213Fr, 204Pb, 205,206Bi; compiled T1/2 of isomers of >1 micro-sec half-life above 7-MeV excitations across the nuclear chart. 202,203,204,205Tl, 202,203,204Pb, 206Bi, 213At, 210,211,212Rn, 209,211,212Fr; compiled B(E3) for isomer decays.
doi: 10.1016/j.physletb.2022.137262
2021BA03 Phys.Rev. C 103, 014301 (2021) A.Basu, A.K.Singh, I.Ragnarsson, B.G.Carlsson, A.Kardan, G.B.Hagemann, G.Sletten, B.Herskind, H.Hubel, S.Chmel, A.N.Wilson, J.Rogers, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, S.Zhu, A.Korichi, P.Fallon, B.M.Nyako, J.Timar Highly deformed band structures due to core excitations in 123Xe NUCLEAR REACTIONS 80Se(48Ca, 5n)123Xe, E=207 MeV; measured Eγ, Iγ, two to four-fold γγ-coin, angular-distribution ratios for eight transitions using the Gammasphere array at ATLAS-ANL facility. 123Xe; deduced high-spin levels, J, π, multipolarities, highly-deformed rotational bands, alignments, band crossings, configurations; calculated total energy surfaces. Comparison with cranked Nilsson-Strutinsky (CNS) and cranked Nilsson-Strutinsky-Bogoliubov (CNSB) models.
doi: 10.1103/PhysRevC.103.014301
2021CA19 Phys.Rev. C 104, L022802 (2021) L.Canete, G.Lotay, G.Christian, D.T.Doherty, W.N.Catford, S.Hallam, D.Seweryniak, H.M.Albers, S.Almaraz-Calderon, E.A.Bennett, M.P.Carpenter, C.J.Chiara, J.P.Greene, C.R.Hoffman, R.V.F.Janssens, J.Jose, A.Kankainen, T.Lauritsen, A.Matta, M.Moukaddam, S.Ota, A.Saastamoinen, R.Wilkinson, S.Zhu New constraints on the 25Al (p, γ) reaction and its influence on the flux of cosmic γ rays from classical nova explosions NUCLEAR REACTIONS 11B(16O, p)26Mg, E=19 MeV from Argonne ATLAS accelerator; measured Eγ, Iγ, γγ-coin, γ(θ) and level half-lives by DSAM using Gammasphere array of 99 HPGe detectors. 2H(25Mg, p)26Mg, E=10 MeV/nucleon from Texas A and M cyclotron; measured outgoing protons and scattered deuterons using the TIARA Si array, and 26Mg recoils by the MDM-2 magnetic spectrometer with Oxford ionization chamber, angular distributions of scattered deuterons and protons. 26Mg; deduced levels, J, π, resonances, spectroscopic factors. 26Si; deduced levels, resonances, J, π, Γp, Γγ, resonance strengths by comparing with the level structures of mirror nucleus 26Mg. 25Al(p, γ)26Si, T=0.2-0.4 GK; deduced stellar reaction rate by considering the contribution of resonant states in 26Si, galactic abundance of 26Al from classical novae; performed nova outburst simulations using the hydrodynamic Lagrangian time-implicit code SHIVA.
doi: 10.1103/PhysRevC.104.L022802
2021DO08 Phys.Rev.Lett. 127, 202501 (2021) D.T.Doherty, A.N.Andreyev, D.Seweryniak, P.J.Woods, M.P.Carpenter, K.Auranen, A.D.Ayangeakaa, B.B.Back, S.Bottoni, L.Canete, J.G.Cubiss, J.Harker, T.Haylett, T.Huang, R.V.F.Janssens, D.G.Jenkins, F.G.Kondev, T.Lauritsen, C.Lederer-Woods, J.Li, C.Muller-Gatermann, D.Potterveld, W.Reviol, G.Savard, S.Stolze, S.Zhu Solving the Puzzles of the Decay of the Heaviest Known Proton-Emitting Nucleus 185Bi RADIOACTIVITY 185Bi(p), (α), (IT) [from 95Mo(93Nb, 3n), E=424 MeV]; measured decay products, Eγ, Iγ, Eα, Iα, Ep, Ip, α-γ- and π-γ-coin.; deduced γ-ray energies, decay levels schemes, T1/2, high-spin states, reassignment of the ground-state lifetime, proton-decay spectroscopic factor. Fragment Mass Analyzer and Argonne Gas-Filled Analyzer at Argonne National Laboratory's ATLAS facility.
doi: 10.1103/PhysRevLett.127.202501
2021GA02 Phys.Rev. C 103, 014314 (2021) A.Gade, R.V.F.Janssens, D.Bazin, P.Farris, A.M.Hill, S.M.Lenzi, J.Li, D.Little, B.Longfellow, F.Nowacki, A.Poves, D.Rhodes, J.A.Tostevin, D.Weisshaar In-beam γ-ray spectroscopy of 62, 64Cr NUCLEAR REACTIONS 9Be(65Mn, 62Cr), (65Mn, 64Cr), (66Fe, 62Cr), (66Fe, 64Cr), (68Co, 62Cr), (68Co, 64Cr), E=90-95 MeV/nucleon, [secondary beams of 65Mn, 66Fe, 68Co from 9Be(82Se, X), E=140 MeV/nucleon primary reaction followed by separation of fragments using A1900 separator at NSCL-MSU Coupled Cyclotron Facility]; measured projectile-like reaction residues, Eγ, Iγ, (particle)γ-, and γγ-coin using GRETINA array for γ detection, and S800 ionization chamber with two plastic timing scintillators for detection of 62Cr and 64Cr particles analyzed through time-of-flight and energy loss. 62,64Cr; deduced levels, J, π. Comparison with shell-model calculations using LNPS interaction. NUCLEAR STRUCTURE 62,64Cr; calculated levels, J, π, B(E2) using shell-model calculations with Lenzi-Nowacki-Poves-Sieja (LNPS) interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.103.014314
2021GA28 Phys.Rev. C 104, 024313 (2021) A.Gade, R.V.F.Janssens, B.A.Brown, R.G.T.Zegers, D.Bazin, P.Farris, A.M.Hill, J.Li, D.Little, B.Longfellow, F.Nowacki, D.Rhodes, D.Weisshaar In-beam γ-ray spectroscopy of 68Fe from charge exchange on 68Co projectiles NUCLEAR REACTIONS 9Be(68Co, 68Fe), E=95 MeV/nucleon, [secondary 68Co beam from 9Be(82Se, X), E=140 MeV/nucleon primary reaction, followed by separation of fragments using the A1900 fragment separator at NSCL-MSU]; measured reaction products, particle-identification spectrum using S-800 spectrograph, Eγ, Iγ, γγ- and (particle)γ-coin using GRETINA array of 11 modules of 36-fold segmented HPGe detectors. 68Fe; deduced levels, J, π, inclusive σ. Comparison with shell-model calculations using the LNPS interaction, and f7j4a Hamiltonian.
doi: 10.1103/PhysRevC.104.024313
2021HA14 Phys.Rev. C 103, 034322 (2021) D.J.Hartley, K.Villafana, F.G.Kondev, M.A.Riley, R.V.F.Janssens, K.Auranen, A.D.Ayangeakaa, J.S.Baron, A.J.Boston, M.P.Carpenter, J.A.Clark, J.P.Greene, J.Heery, C.R.Hoffman, P.Jackson, T.Lauritsen, J.Li, D.Little, E.S.Paul, G.Savard, D.Seweryniak, J.Simpson, S.Stolze, G.L.Wilson, J.Wu, S.Zhu, S.Frauendorf Possible quenching of static neutron pairing near the N=98 deformed shell gap: Rotational structures in 160, 161Gd NUCLEAR REACTIONS 154Sm, 164Dy(160Gd, X)160Gd/161Gd, E=1000 MeV; measured Eγ, Iγ, γγ-coin using the Gammasphere array with 73 detectors at ATLAS-ANL facility. 160,161Gd; deduced high-spin levels, J, π, rotational bands, branching ratios, B(M1)/B(E2), Nilsson configurations, alignments, neutron pairing strength. Comparison with structure of ν5/2[523] band in N=97 isotone 159Sm.
doi: 10.1103/PhysRevC.103.034322
2021KA05 Phys.Lett. B 813, 136033 (2021) A.Kankainen, P.J.Woods, D.T.Doherty, H.M.Albers, M.Albers, A.D.Ayangeakaa, M.P.Carpenter, C.J.Chiara, J.L.Harker, R.V.F.Janssens, C.Lederer-Woods, D.Seweryniak, F.Strieder, S.Zhu Decay of the key 92-keV resonance in the 25Mg(p, γ) reaction to the ground and isomeric states of the cosmic γ-ray emitter 26Al NUCLEAR REACTIONS 24Mg(3He, p), E=10 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced γ-ray energies and intensities, γ-ray branches, J, π.
doi: 10.1016/j.physletb.2020.136033
2021KE04 Phys.Rev. C 103, 035805 (2021) A.R.L.Kennington, G.Lotay, D.T.Doherty, D.Seweryniak, C.Andreoiu, K.Auranen, M.P.Carpenter, W.N.Catford, C.M.Deibel, K.Hadynska-Klek, S.Hallam, D.Hoff, T.Huang, R.V.F.Janssens, S.Jazrawi, J.Jose, F.G.Kondev, T.Lauritsen, J.Li, A.M.Rogers, J.Saiz, G.Savard, S.Stolze, G.L.Wilson, S.Zhu Level structure of the Tz = -1 nucleus 34Ar and its relevance for nucleosynthesis in ONe novae NUCLEAR REACTIONS 12C(24Mg, 2n)34Ar, (24Mg, 2p)34S, E=95 MeV; measured reaction products, Eγ, Iγ, (34Ar)γ- and (34S)γ-coin, γγ-coin, γ(θ) using GRETINA array for detection of high-energy γ rays, and Fragment mass analyzer (FMA) for recoils at ATLAS-ANL facility. 34Ar, 34S; deduced levels, proton-unbound levels of astrophysical significance, J, π, mirror symmetry, 33S/32S and 34S/32S ratios to search for nova presolar grains, and compared with previous experimental data. 34Cl(p, γ), T=0.1-0.8 GK; calculated stellar reaction rate. Comparison of levels structures in 34Ar and 34S with data from the ENSDF database, and with shell-model calculations using USDA Hamiltonian, within the sd shell-model space for even-parity states, and using WBP Hamiltonian, within the sd-pf space for odd-parity levels.
doi: 10.1103/PhysRevC.103.035805
2021MI07 Phys.Rev. C 103, 024323 (2021) A.J.Mitchell, R.Orford, G.J.Lane, C.J.Lister, P.Copp, J.A.Clark, G.Savard, J.M.Allmond, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, P.Chowdhury, D.A.Gorelov, R.V.F.Janssens, F.G.Kondev, U.Patel, D.Seweryniak, M.L.Smith, Y.Y.Zhong, S.Zhu Ground-state and decay properties of neutron-rich 106Nb RADIOACTIVITY 106Nb(β-)[from 252Cf(SF), CARIBU radioactive-ion-beam facility at ANL, followed by mass separation and measurement using Multi-Reflection Time-of-Flight (MR-TOF) mass separator and Canadian Penning Trap (CPT)]; measured CPT spectra, Eγ, Iγ, βγγ-coin, half-life of 106Nb decay using five HPGe clover detectors, and a plastic scintillator at the X-Array and SATURN decay-spectroscopy station. 106Mo; deduced levels, J, π, apparent β feedings, range of logft values, configurations. 106Nb; discussed spin, parity and configurations of the ground state. Comparison with earlier experimental results. ATOMIC MASSES 106Nb; measured cyclotron frequency using the Phase-Imaging Ion-Cyclotron-Resonance (PI-ICR) technique, CPT spectra; deduced mass excess. Comparison with previous measurement, and with AME 2016 evaluation.
doi: 10.1103/PhysRevC.103.024323
2021PR11 Phys.Rev. C 104, 044318 (2021) V.S.Prasher, A.J.Mitchell, C.J.Lister, P.Chowdhury, L.Afanasieva, M.Albers, C.J.Chiara, M.P.Carpenter, D.Cline, N.D'Olympia, C.J.Guess, A.B.Hayes, C.R.Hoffman, R.V.F.Janssens, B.P.Kay, T.L.Khoo, A.Korichi, T.Lauritsen, E.Merchan, Y.Qiu, D.Seweryniak, R.Shearman, S.K.Tandel, A.Verras, C.Y.Wu, S.Zhu Shapes, softness, and nonyrast collectivity in 186W NUCLEAR REACTIONS 186W(136Xe, 136Xe')186W, E=725, 800 MeV from ATLAS-ANL facility; measured scattered beam- and target-like ions using Rochester-Livermore 4π CHICO2 array, Eγ, Iγ, γγ- and (particle)γ-coin, gγ(θ)(DCO) using Gammasphere array. 186W; deduced high-spin levels, J, π, Kπ, multipolarities, rotational bands, odd-even staggering parameters S(J) for bands and compared with predictions for an axially symmetric rotor, a rigid asymmetric rotor and a γ-unstable nucleus, B(E1) ratios. Systematics of E(first 2+), E(first 4+)/E(first 2+), E(second 2+)/E(first 2+), E(second 0+)/E(first 2+) for A=178-188 even-A W isotopes, and staggering parameters for 178,180,182,184,186,188W, 178,180Hf, 188Os.
doi: 10.1103/PhysRevC.104.044318
2021SC06 Phys.Rev. C 103, 024312 (2021) R.Schwengner, R.Massarczyk, M.Scheck, W.Tornow, G.Battaglia, T.Beck, D.Bemmerer, N.Benouaret, R.Beyer, M.Butterling, F.Fiedler, S.W.Finch, C.Fransen, U.Friman-Gayer, A.Frotscher, R.Gonzalez, M.Grieger, A.Hartmann, T.Hensel, E.Hoemann, H.Hoffmann, R.V.F.Janssens, S.Johnson, M.D.Jones, A.R.Junghans, N.Kelly, J.Kleemann, Krishichayan, D.R.Little, F.Ludwig, S.E.Muller, D.O'Donnell, O.Papst, E.Pirovano, J.Sinclair, M.P.Takacs, S.Turkat, S.Urlass, A.Wagner, V.Werner, O.Wieland, J.Wilhelmy Electric and magnetic dipole strength in 66Zn NUCLEAR REACTIONS 66Zn(γ, γ'), (polarized γ, γ'), E=7.5, 13.4, MeV unpolarized bremsstrahlung from γELBE facility, and E=4.3, 4.4, 4.55, 4.7, 4.85, 5.0, 5.15, 5.3, 5.45, 5.6, 5.75, 5.9, 6.1, 6.3, 6.5, 6.7, 6.9, 7.1, 7.3, 7.5, 7.7, 7.9, 8.15, 8.4, 8.65, 8.9, 9.15, 9.4, 9.65, 9.9 MeV quasimonoenergetic and linearly polarized photon beams from HIγS facility; measured Eγ, Iγ, γγ(θ), γ(linear polarization) using four escape-suppressed HPGe detectors at γELBE and using two HPGe detectors at HIγS. 66Zn; deduced 128 J=1 levels up to 11.02 MeV excitation, pygmy dipole resonances (PDR), J, π, energy-integrated scattering σ, Γ02/Γ, photoabsorption σ, photon strength functions, B(M1). Comparison of measured photoabsorption cross sections with experimental values in 54Fe(γ, γ'), and with calculations using TALYS code as in the 2019 library, and from the three Lorentz functions (TLO). Comparison of B(M1) strengths with shell-model calculations using the jj44c Hamiltonian. Comparison of deduced photon strength functions with those from 64Ni(p, p'γ).
doi: 10.1103/PhysRevC.103.024312
2021SU02 Phys.Rev. C 103, 014319 (2021) S.Suman, S.K.Tandel, A.Kumawat, S.G.Wahid, M.Hemalatha, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu Nanosecond isomers and the evolution of collectivity in stable, even-A Hg isotopes NUCLEAR REACTIONS 197Au(209Bi, X), E=1450 MeV; 197Au(207Pb, X), E=1430 MeV; measured Eγ, Iγ, three- and higher fold γγ-coin, γγ(θ)(DCO), half-lives of nanosecond isomers by γγ(t) using pulsed beams from ATLAS-ANL accelerator, and Gammasphere array of 100 Compton-suppressed HPGe detectors. 198,200,202Hg; deduced levels, J, π, multipolarities, B(E2), configurations, band crossings, and collectivity; calculated total energy surface plots, neutron and proton quasiparticle energy levels using the Ultimate Cranker code. Systematics of nanosecond isomers, half-lives and B(E2) in 192,194,196,198,200,202,204Hg.
doi: 10.1103/PhysRevC.103.014319
2020BA12 Phys.Rev. C 101, 024309 (2020) A.Basu, A.K.Singh, S.Nag, G.B.Hagemann, G.Sletten, B.Herskind, A.N.Wilson, J.Rogers, I.Ragnarsson, H.Hubel, S.Chmel, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, S.Zhu, A.Korichi, P.Fallon, B.M.Nyako, J.Timar Evolution of collective and noncollective structures in 123Xe NUCLEAR REACTIONS 80Se(48Ca, 5n)123Xe, E=207 MeV; measured Eγ, Iγ, γγ-coin, γ-ray angular distribution ratios using Gammasphere array at ATLAS-ANL facility. 123Xe; deduced high-spin levels, J, π, multipolarities, rotational bands, configurations, alignments, B(E1), B(E1)/B(E2); calculated total-energy surfaces in (ϵ2, γ) plane. Comparison with cranked Nilsson-Strutinsky (CNS) calculations.
doi: 10.1103/PhysRevC.101.024309
2020DE09 Phys.Rev. C 101, 034612 (2020) V.V.Desai, A.Pica, W.Loveland, J.S.Barrett, E.A.McCutchan, S.Zhu, A.D.Ayangeakaa, M.P.Carpenter, J.P.Greene, T.Lauritsen, R.V.F.Janssens, B.M.S.Amro, W.B.Walters Multinucleon transfer in the interaction of 977 MeV and 1143 MeV 204Hg with 208Pb NUCLEAR REACTIONS 208Pb(204Hg, X)72Ga/81mRb/85Kr/91Sr/92Sr/97Zr/90Nb/99Mo/93Tc/99Tc/97Ru/103Ru/112Ag/115Cd/117Sb/131I/125Xe/135Xe/140Ba/143Ce/156Sm/154Tb/167Ho/169Lu/180mHf/181Re/182Re/188Re/191Os/188Ir/190Ir/195Pt/192Au/193Au/194Au/196Au/198Au/199Au/200mAu/195mHg/197Hg/203Hg/198Tl/199Tl/200Tl/201Tl/202Tl/200Pb/201Pb/202mPb/203Pb/204Pb/202Bi/203Bi/204Bi/205Bi/206Bi/206Po/208At/209At/210At/211Rn, E=977 MeV; 208Pb(204Hg, X)69Zn/72Zn/82Br/86Y/87Y/91Sr/96Nb/95Tc/96Tc/97Zr/97Ru/99Mo/101Rh/103Ru/105Ru/111In/115Cd/117Sb/120mSb/122Sb/128Sb/132Cs/135mBa/140Ba/143Ce/147Gd/172Er/165Tm/169Lu/171Lu/170Hf/173Hf/180mHf/176Ta/177Ta/178Ta/183Ta/181Re/182Re/188Re/189Re/183Os/185Os/186Ir/188Ir/190Ir/188Pt/191Pt/197mPt/193Au/194Au/196Au/198Au/199Au/200mAu/193mHg/195mHg/197Hg/203Hg/197Tl/199Tl/200Tl/201Tl/202Tl/200Pb/201Pb/202mPb/203Pb/203Bi/204Bi/205Bi/206Bi/206Po/207Po/209At/210At/211Rn, E=1143 MeV; measured Eγ, Iγ, fragment cumulative and independent σ for nuclei produced in multi-nucleon transfer (MNT) reactions using Gammasphere array for off-line γ counting at ANT-ATLAS facility. Comparison with theoretical predictions of GRAZING-F, dinuclear systems (DNS), and improved quantum molecular dynamics (ImQMD) models, and with previous experimental results from MNT reactions: 248Cm(16O, X), (86Kr, X), (129Xe, X), (132Xe, X), (136Xe, X), 197Au(238U, X), 238U(18O, X), (238U, X), 208Pb(18O, X), (64Ni, X), (136Xe, X), 198Pt(136Xe, X). No evidence for production of nuclei near the N=126 shell.
doi: 10.1103/PhysRevC.101.034612
2020DE18 Eur.Phys.J. A 56, 150 (2020) V.V.Desai, W.Loveland, R.Yanez, G.Lane, S.Zhu, A.D.Ayangekaa, J.P.Greene, F.G.Kondev, R.V.F.Janssens, P.A.Copp The 136Xe + 198Pt reaction: a detailed re-examination
doi: 10.1140/epja/s10050-020-00154-4
2020HA13 Phys.Rev. C 101, 044301 (2020) D.J.Hartley, F.G.Kondev, G.Savard, J.A.Clark, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, P.Copp, K.Hicks, C.R.Hoffman, R.V.F.Janssens, T.Lauritsen, R.Orford, J.Sethi, S.Zhu High-K, two-quasiparticle states in 160Gd RADIOACTIVITY 160,160mEu(β-)[from 252Cf(SF), isobarically separated A=160 nuclei using the CARIBU source at Argonne National Laboratory]; measured β-, Eγ, Iγ, βγ- and βγγ-coin using four Ge clover detectors and four plastic scintillators. 160Gd; deduced levels, J, π, Kπ, bands, Nilsson configurations, total conversion coefficients and multipolarities of the 98.8- and 102.7-keV transitions, Iβ and logft. Comparison with previous experimental results, and with multiquasiparticle calculations using Woods-Saxon potential, and Lipkin-Nogami prescription for pairing.
doi: 10.1103/PhysRevC.101.044301
2020KE03 Phys.Rev.Lett. 124, 252702 (2020) A.R.L.Kennington, G.Lotay, D.T.Doherty, D.Seweryniak, C.Andreoiu, K.Auranen, M.P.Carpenter, W.N.Catford, C.M.Deibel, K.Hadynska-Klek, S.Hallam, D.E.M.Hoff, T.Huang, R.V.F.Janssens, S.Jazrawi, J.Jose, F.G.Kondev, T.Lauritsen, J.Li, A.M.Rogers, J.Saiz, G.Savard, S.Stolze, G.L.Wilson, S.Zhu Search for Nova Presolar Grains: γ-Ray Spectroscopy of 34Ar and its Relevance for the Astrophysical 33Cl(p, γ) Reaction NUCLEAR REACTIONS 12C(24Mg, X)34Ar, E=95 MeV; measured reaction products, Eγ, Iγ. 34Cl, 34S; deduced γ-ray energies, intensities, J, π, contribution of individual resonances to the stellar reaction rate.
doi: 10.1103/PhysRevLett.124.252702
2020LO11 Phys.Rev. C 102, 035804 (2020) G.Lotay, D.T.Doherty, D.Seweryniak, M.P.Carpenter, R.V.F.Janssens, J.Jose, A.M.Rogers, P.J.Woods, S.Zhu Spectroscopy of 30P and the abundance of 29Si in presolar grains NUCLEAR REACTIONS 28Si(3He, p), E=13 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO) using the Gammasphere array of 97 Compton-suppressed HPGe detectors at ATLAS-ANL facility. 30P; deduced levels, resonances, J, π, and compared with evaluated data in the ENSDF database. 29Si(p, γ)30P, E(proton resonance)=2-500 keV; deduced spectroscopic factors, Γp, Γγ, resonance strengths, astrophysical reaction rates from 0.08 to 0.5 GK. Evaluated mean composition of nova ejecta of 28,29,30Si, 31P, 32,33,34S from models of nova explosions and compared with data in STARLIB database.
doi: 10.1103/PhysRevC.102.035804
2020MA37 Phys.Rev.Lett. 125, 102502 (2020) N.Marginean, D.Little, Y.Tsunoda, S.Leoni, R.V.F.Janssens, B.Fornal, T.Otsuka, C.Michelagnoli, L.Stan, F.C.L.Crespi, C.Costache, R.Lica, M.Sferrazza, A.Turturica, A.D.Ayangeakaa, K.Auranen, M.Barani, P.C.Bender, S.Bottoni, M.Boromiza, A.Bracco, S.Calinescu, C.M.Campbell, M.P.Carpenter, P.Chowdhury, M.Ciemala, N.Cieplicka-Orynczak, D.Cline, C.Clisu, H.L.Crawford, I.E.Dinescu, J.Dudouet, D.Filipescu, N.Florea, A.M.Forney, S.Fracassetti, A.Gade, I.Gheorghe, A.B.Hayes, I.Harca, J.Henderson, A.Ionescu, L.W.Iskra, M.Jentschel, F.Kandzia, Y.H.Kim, F.G.Kondev, G.Korschinek, U.Koster, Krishichayan, M.Krzysiek, T.Lauritsen, J.Li, R.Marginean, E.A.Maugeri, C.Mihai, R.E.Mihai, A.Mitu, P.Mutti, A.Negret, C.R.Nita, A.Olacel, A.Oprea, S.Pascu, C.Petrone, C.Porzio, D.Rhodes, D.Seweryniak, D.Schumann, C.Sotty, S.M.Stolze, R.Suvaila, S.Toma, S.Ujeniuc, W.B.Walters, C.Y.Wu, J.Wu, S.Zhu, S.Ziliani Shape Coexistence at Zero Spin in 64Ni Driven by the Monopole Tensor Interaction NUCLEAR REACTIONS 62Ni(18O, 16O), E=39 MeV; 65Cu(11B, 12C), E=26 MeV; 63Ni(n, γ), E thermal; measured reaction products, Eγ, Iγ; analyzed available data from multiple experiments. 64Ni; deduced γ-ray energies, J, π, B(E2). Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.125.102502
2020MO36 Phys.Rev. C 102, 054328 (2020) C.Morse, A.O.Macchiavelli, H.L.Crawford, S.Zhu, C.Y.Wu, Y.Y.Wang, J.Meng, B.B.Back, B.Bucher, C.M.Campbell, M.P.Carpenter, J.Chen, R.M.Clark, M.Cromaz, P.Fallon, J.Henderson, R.V.F.Janssens, M.D.Jones, T.L.Khoo, F.G.Kondev, T.Lauritsen, I.Y.Lee, J.Li, D.Potterveld, C.Santamaria, G.Savard, D.Seweryniak, S.Stolze, D.Weisshaar Quadrupole and octupole collectivity in 143Ba NUCLEAR REACTIONS 208Pb(143Ba, 143Ba'), E=627.8 MeV, [143Ba beam from 252Cf SF at the CARIBU facility at ATLAS-ANL]; measured reaction products, Eγ, Iγ, scattered particles, (particle)γ-coin, and half-life of the first 9/2- level from (particle)γ-coin using GRETINA array of 11 Quad detector modules, each with four 36-fold segmented HPGe crystals for γ detection and CHICO2 array of 20 Parallel Plate Avalanche Counters (PPACs). 143Ba; deduced levels, J, π, Coulomb excitation γ-ray yields, E2 matrix elements using GOSIA least-squares analysis, B(E2), upper limit for E3 matrix element and B(E3), alignment plots, doubly decoupled structure. Comparison with Reflection-Asymmetric Triaxial Particle Rotor Model (RAT-PRM) calculations.
doi: 10.1103/PhysRevC.102.054328
2020RU03 Phys.Rev. C 102, 014313 (2020) D.Rudolph, I.Ragnarsson, S.AAberg, C.Andreoiu, M.P.Carpenter, R.M.Clark, J.Ekman, C.Fahlander, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, D.G.Sarantites, D.Seweryniak, C.E.Svensson Onset of high-spin rotational bands in the N=Z nucleus 62Ga NUCLEAR REACTIONS 40Ca(28Si, npα), E=122 MeV; measured Eγ, Iγ, (particle)γ- and γγ-coin, γγ(θ)(DCO) using the Gammasphere array and the 4π Microball system for charged particle detection at the ANL-ATLAS facility. 62Ga; deduced high-spin levels, J, π, multipolarities, band structures, alignments, and configurations; calculated energy surface contours in (ϵ2, γ) plane. Comparison with cranked Nilsson-Strutinsky (CNS) calculations.
doi: 10.1103/PhysRevC.102.014313
2020SE02 Phys.Rev.Lett. 124, 052501 (2020) N.Sensharma, U.Garg, Q.B.Chen, S.Frauendorf, D.P.Burdette, J.L.Cozzi, K.B.Howard, S.Zhu, M.P.Carpenter, P.Copp, F.G.Kondev, T.Lauritsen, J.Li, D.Seweryniak, J.Wu, A.D.Ayangeakaa, D.J.Hartley, R.V.F.Janssens, A.M.Forney, W.B.Walters, S.S.Ghugre, R.Palit Longitudinal Wobbling Motion in 187Au NUCLEAR REACTIONS 174Yb(19F, X)187Au, E=105, 115 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies and intensities, J, π, yrast band, B(M1)/B(E2). Comparison with PRM calculations.
doi: 10.1103/PhysRevLett.124.052501
2020SI09 Eur.Phys.J. A 56, 105 (2020) J.Sinclair, M.Scheck, S.W.Finch, Krishichayan, U.Friman-Gayer, W.Tornow, G.Battaglia, T.Beck, R.Chapman, M.M.R.Chishti, Ch.Fransen, R.Gonzales, E.Hoemann, J.Isaak, R.V.F.Janssens, D.A.Jaroszynski, S.Johnson, M.D.Jones, J.M.Keatings, N.Kelly, J.Kleemann, D.Little, B.Loher, K.R.Mashtakov, M.Muscher, D.O'Donnell, O.Papst, E.E.Peters, D.Savran, M.Schilling, R.Schwengner, P.Spagnoletti, M.Spieker, V.Werner, J.Wilhelmy, O.Wieland, S.W.Yates, A.Zilges Firm spin and parity assignments for high-lying, low-spin levels in stable Si isotopes
doi: 10.1140/epja/s10050-020-00118-8
2020WA24 Phys.Rev. C 102, 024329 (2020) S.G.Wahid, S.K.Tandel, S.Suman, M.Hemalatha, A.Patel, P.Roy, A.Y.Deo, Pragati, P.C.Srivastava, B.Bhoy, S.S.Bhattacharjee, R.P.Singh, S.Muralithar, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, S.Rai, A.Sharma Metastable states from multinucleon excitations in 202Tl and 203Pb NUCLEAR REACTIONS 198Pt(7Li, 3n)202Tl, E=31-36 MeV; 197Au(209Bi, X), E=1450 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(linear polarization), half-lives of isomers by γ(t) and centroid-shift method using the INGA array at IUAC-New Delhi for the 202Tl experiment, and Gammasphere array at the ATLAS-ANL facility for 203Pb. 202Tl, 203Pb; deduced high-spin levels, isomers, J, π, multipolarities, B(E2), B(E3), configurations. Systematics of energies and B(Eλ) for isomers in 202,203,204Tl and 203,204,205Pb. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.102.024329
2019AU02 Phys.Lett. B 792, 187 (2019) K.Auranen, D.Seweryniak, M.Albers, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.J.Chiara, P.Copp, H.M.David, D.T.Doherty, J.Harker, C.R.Hoffman, R.V.F.Janssens, T.L.Khoo, S.A.Kuvin, T.Lauritsen, G.Lotay, A.M.Rogers, C.Scholey, J.Sethi, R.Talwar, W.B.Walters, P.J.Woods, S.Zhu Proton decay of 108I and its significance for the termination of the astrophysical rp-process RADIOACTIVITY 108I(α), (p), 109I(p), 107,108Te(α) [from 54Fe(58Ni, X)108I/109I/108Te/107Te, E=254 MeV]; measured Eα, Iα, Ep, Ip; deduced Q-values, T1/2, mass excesses, branching ratio. Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2019.03.039
2019AY04 Phys.Rev.Lett. 123, 102501 (2019) A.D.Ayangeakaa, R.V.F.Janssens, S.Zhu, D.Little, J.Henderson, C.Y.Wu, D.J.Hartley, M.Albers, K.Auranen, B.Bucher, M.P.Carpenter, P.Chowdhury, D.Cline, H.L.Crawford, P.Fallon, A.M.Forney, A.Gade, A.B.Hayes, F.G.Kondev, Krishichayan, T.Lauritsen, J.Li, A.O.Macchiavelli, D.Rhodes, D.Seweryniak, S.M.Stolze, W.B.Walters, J.Wu Evidence for Rigid Triaxial Deformation in 76Ge from a Model-Independent Analysis NUCLEAR REACTIONS 208Pb(76Ge, 76Ge'), E=304, 291, 317 MeV; measured reaction products, Eγ, Iγ. 76Ge; deduced γ-ray energies, E2 matrix elements, quadrupole asymmetry for bands, triaxial deformation.
doi: 10.1103/physrevlett.123.102501
2019DE15 Phys.Rev. C 99, 044604 (2019) V.V.Desai, W.Loveland, K.McCaleb, R.Yanez, G.Lane, S.S.Hota, M.W.Reed, H.Watanabe, S.Zhu, K.Auranen, A.D.Ayangeakaa, M.P.Carpenter, J.P.Greene, F.G.Kondev, D.Seweryniak, R.V.F.Janssens, P.A.Copp The 136Xe + 198Pt reaction: A test of models of multi-nucleon transfer reactions NUCLEAR REACTIONS 198Pt(136Xe, X)43K/69mZn/72Zn/72As/73Ga/96Nb/97Zr/99Mo/99mTc/105Rh/110In/112Pd/115mIn/120mSb/122Sb/124I/125Xe/126Sb/127Sb/127Xe/127Cs/128Sb/130I/132I/131mTe/131Ba/132I/132Cs/133I/133mXe/135I/135Xe/135mBa/136Cs/140Ba/140La/142Pr/143Ce/153Sm/154Tb/157Dy/169Lu/173Hf/175Hf/176Ta/177Ta/180mHf/181Re/182Re/182Os/183Os/184Ta/188Re/188Ir/189Re/190Ir/191Pt/193Au/194Ir/194Au/195mIr/195mPt/195mHg/196mIr/196mAu/197Hg/198Au/199Au/200mAu/200Tl/200Pb/201Tl/201Pb/202Tl/202mPb/203Hg/203Pb/204Bi, E=760.5 MeV; measured Eγ, Iγ, cumulative and independent yields and σ of projectile-like, fission and target-like fragments using Gammasphere array for online γ detection and an HPGe detector for offline γ spectroscopy at ATLAS-ANL facility. Comparison with predictions of GRAZING, di-nuclear systems (DNS), and improved quantum molecular dynamics (ImQMD) models for multi-nucleon transfer reactions, and with previous experimental results.
doi: 10.1103/PhysRevC.99.044604
2019EL08 Phys.Rev. C 100, 034317 (2019) B.Elman, A.Gade, R.V.F.Janssens, A.D.Ayangeakaa, D.Bazin, J.Belarge, P.C.Bender, B.A.Brown, C.M.Campbell, M.P.Carpenter, H.L.Crawford, B.P.Crider, P.Fallon, A.M.Forney, J.Harker, S.N.Liddick, B.Longfellow, E.Lunderberg, C.J.Prokop, J.Sethi, R.Taniuchi, W.B.Walters, D.Weisshaar, S.Zhu Probing the role of proton cross-shell excitations in 70Ni using nucleon knockout reactions NUCLEAR REACTIONS 9Be(71Cu, 70Ni), E=80.2 MeV/nucleon; 9Be(71Ni, 70Ni), E=82.6 MeV/nucleon; 9Be(72Zn, 70Ni), E=76.5 MeV/nucleon, [secondary 71Cu, 71Ni, 71Zn beams from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction at the K500 and K1200 coupled cyclotrons of NSCL-MSU]; measured yields of reaction products, Eγ, Iγ, γγ- and (knockout residues)γ-coin using GRETINA array for γ detection, and CsI(Na) hodoscope array for reaction residues. 70Ni; deduced levels, J, π, configurations. Comparison with shell-model calculations for only the neutron excitations using the jj44pna effective interaction.
doi: 10.1103/PhysRevC.100.034317
2019GA01 Phys.Rev. C 99, 011301 (2019) A.Gade, R.V.F.Janssens, J.A.Tostevin, D.Bazin, J.Belarge, P.C.Bender, S.Bottoni, M.P.Carpenter, B.Elman, S.J.Freeman, T.Lauritsen, S.M.Lenzi, B.Longfellow, E.Lunderberg, A.Poves, L.A.Riley, D.K.Sharp, D.Weisshaar, S.Zhu Structure of 70Fe: Single-particle and collective degrees of freedom NUCLEAR REACTIONS 9Be(71Co, 70Fe), E=87 MeV/nucleon, [secondary 71Co beam from 9Be(82Se, X), E=140 MeV/nucleon primary reaction, followed by separation of 71Co ions using A1900 fragment separator]; measured Eγ, Iγ, (70Fe ions)γ- and γγ-coin, residue energy loss and time of flight, σ for one-proton removal, level half-lives by line-shape analysis using GRETINA array for γ detection and the S800 spectrograph for particle identification at the NSCL-MSU facility. 70Fe; deduced levels, J, π, . Comparison with LNPS large-scale shell-model calculations.
doi: 10.1103/PhysRevC.99.011301
2019IS03 Phys.Lett. B 788, 396 (2019) L.W.Iskra, R.Broda, R.V.F.Janssens, M.P.Carpenter, B.Fornal, T.Lauritsen, T.Otsuka, T.Togashi, Y.Tsunoda, W.B.Walters, S.Zhu Revised B(E3) transition rate and structure of the 3 - level in 96Zr NUCLEAR STRUCTURE 96Zr; analyzed available data; deduced reduced value of B(E3) compared to the previous reports; calculated the collectivity of the octupole vibration arises from both proton and neutron excitations involving a large number of orbitals using the Monte Carlo shell-model. NUCLEAR REACTIONS 238U(76Ge, X), (64Ni, X), (48Ca, X), (208Pb, X)96Zr, 208Pb, 198Pt(76Ge, X)96Zr, E not given; measured reaction products, Eγ, Iγ; deduced γ-ray relative intensities, B(E3), branching ratios.
doi: 10.1016/j.physletb.2018.10.069
2019KE01 Phys.Rev. C 99, 011303 (2019) R.Kern, R.Stegmann, N.Pietralla, G.Rainovski, M.P.Carpenter, R.V.F.Janssens, M.Lettmann, O.Moller, T.Moller, C.Stahl, V.Werner, S.Zhu Nuclear isovector valence-shell excitation of 202Hg NUCLEAR REACTIONS 12C(202Hg, 202Hg'), E=890 MeV; measured Eγ, Iγ, γ(θ), γγ-coin using the Gammasphere array at ATLAS-ANL facility. 202Hg; deduced levels, J, π, multipolarities, mixing ratios, B(E1), B(E2), B(E3), B(M1), mixed-symmetry 2+ state, upper limits for the F-spin mixing matrix elements from analysis of data for 136Ba, 138Ce, 202Hg, and 204Hg. Comparison with previous experimental values in the Nuclear Data Sheets.
doi: 10.1103/PhysRevC.99.011303
2019LO09 Eur.Phys.J. A 55, 109 (2019) G.Lotay, D.T.Doherty, D.Seweryniak, S.Almaraz-Calderon, M.P.Carpenter, C.J.Chiara, H.M.David, C.R.Hoffman, R.V.F.Janssens, A.Kankainen, T.Lauritsen, R.Wilkinson, P.J.Woods, S.Zhu Identification of γ-decaying resonant states in 26Mg and their importance for the astrophysical s process
doi: 10.1140/epja/i2019-12791-5
2019MI12 Phys.Rev. C 100, 014302 (2019) S.L.Miller, K.A.Villafana, M.A.Riley, J.Simpson, D.J.Hartley, E.S.Paul, A.D.Ayangeakaa, J.S.Baron, P.F.Bertone, A.J.Boston, M.P.Carpenter, J.J.Carroll, J.Cavey, C.J.Chiara, P.Chowdhury, U.Garg, S.S.Hota, E.G.Jackson, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, M.Litz, W.C.Ma, J.Matta, E.A.McCutchan, S.Mukhopadhyay, P.J.Nolan, E.E.Pedicini, L.L.Riedinger, J.F.Sharpey-Schafer, J.R.Vanhoy, A.Volya, X.Wang, S.Zhu Backbending, seniority, and Pauli blocking of pairing correlations at high rotational frequencies in rapidly rotating nuclei NUCLEAR STRUCTURE 156,157,158,159,160,161,162,163,164,165,166,168,170Er, 158,159,160,161,162,163,164,165,166,167,168,169,170,171,172Yb, 160,161,162,163,164,165,166,167,168,169,170,171,172,173,174Hf, 164,165,166,167,168,169,170,171,172,173,174,175,176,177W; calculated band-crossing frequencies of the first (AB) and the second (BC) i13/2 neutron alignments. 162Er, 164Yb, 166Hf, 168W: calculated AB and BC crossing frequencies as function of quadrupole deformation, and as function of the percentage of the odd-even mass difference for N=94 nuclei. Comparison with experimental data. A=134-200, Z=52-82; systematics of E(first 4+)/E(first 2+) ratios for even-even nuclei.
doi: 10.1103/PhysRevC.100.014302
2019NE06 Phys.Rev. C 100, 014329 (2019) D.Negi, S.K.Tandel, P.Chauhan, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu Decoupled and semi-decoupled bands in 197Hg and 199Hg NUCLEAR REACTIONS 197Au(209Bi, X)197Hg/199Hg, E=1450 MeV; measured Eγ, Iγ, γγ-coin, and γγ(θ)(DCO) using Gammasphere array at ATLAS-ANL facility. 197,199Hg; deduced high-spin levels, J, π, bands, decoupled positive-parity sequences, alignments, configurations, transition from oblate collective rotation at low spin to triaxial noncollective shapes at high spin; calculated quasiparticle levels and total energy surfaces using Ultimate Cranker calculations with standard Nilsson parameters. Systematics of positive-parity levels in A=193-200 even- and odd-A Hg isotopes.
doi: 10.1103/PhysRevC.100.014329
2019RO12 Phys.Rev. C 100, 024320 (2019) P.Roy, S.K.Tandel, S.Suman, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu Isomers from intrinsic excitations in 200Tl and 201, 202Pb NUCLEAR REACTIONS 197Au(207Pb, X), 200Tl/201Pb/202Pb, E=1430 MeV; measured Eγ, Iγ, three- and higher-fold γγ-coin, half-lives of isomers by γγ(t) using Gammasphere array with 100 Compton-suppressed HPGe detectors at ATLAS-ANL facility. 200Tl, 201,202Pb; deduced high-spin levels, isomers, multipolarities from intensity balances, B(E2), B(E3), configurations. Systematics of 13/2+ isomers in 197,199,201Pb, and 5+ and 7+ isomers in 196,198,200Tl.
doi: 10.1103/PhysRevC.100.024320
2019SE06 Phys.Lett. B 792, 170 (2019), Erratum Phys.Lett. B 820, 136556 (2021) N.Sensharma, U.Garg, S.Zhu, A.D.Ayangeakaa, S.Frauendorf, W.Li, G.H.Bhat, J.A.Sheikh, M.P.Carpenter, Q.B.Chen, J.L.Cozzi, S.S.Ghugre, Y.K.Gupta, D.J.Hartley, K.B.Howard, R.V.F.Janssens, F.G.Kondev, T.C.McMaken, R.Palit, J.Sethi, D.Seweryniak, R.P.Singh Two-phonon wobbling in 135Pr NUCLEAR STRUCTURE 135Pr; analyzed available data; deduced wobbling. Comparison with theoretical calculations in the framework of the quasiparticle triaxial rotor and triaxial projected shell models.
doi: 10.1016/j.physletb.2019.03.038
2019SH34 Phys.Rev. C 100, 034309 (2019) U.Shirwadkar, S.K.Tandel, P.Chowdhury, T.L.Khoo, I.Ahmad, M.P.Carpenter, J.P.Greene, R.V.F.Janssens, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Peterson, D.Seweryniak, X.Wang, S.Zhu Decay spectroscopy of two-quasiparticle K isomers in 246, 248Cm via inelastic and transfer reactions NUCLEAR REACTIONS 248Cm(209Bi, 209Bi'), 248Cm(209Bi, X)246Cm, E=1450 MeV from ATLAS-ANL accelerator facility, with bursts between 1 μs to 8 s; measured Eγ, Iγ, γγ-coin, half-lives of isomers in 246Cm and 248Cm by γ(t) using Gammasphere array. 246,248Cm; deduced levels, J, π, K-isomers, two-quasineutron Nilsson configurations, reduced K hindrances, persistence of a deformed subshell gap at N=152 near Z≈100 from systematics of Kπ=8-, two-quasineutron isomeric states in N=150, Z=94-102 even-even nuclei.
doi: 10.1103/PhysRevC.100.034309
2019WA22 Phys.Rev. C 100, 014328 (2019) S.G.Wahid, S.K.Tandel, P.Chowdhury, R.V.F.Janssens, M.P.Carpenter, T.L.Khoo, F.G.Kondev, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, Q.B.Chen, J.Meng Structure of odd-A Pt isotopes along the line of stability NUCLEAR REACTIONS 197Au(209Bi, X)193Pt/195Pt/197Pt, E=1450 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), half-lives of isomers by centroid-shift technique using the Gammasphere array at ATLAS-ANL facility. 193,195,197Pt; deduced levels, J, π, multipolarities, alignments, configurations. Comparison with theoretical calculations. NUCLEAR STRUCTURE 193,195,197Pt; calculated levels, J, π, total energy surfaces, and B(E2); deduced shapes and band crossings. Tilted axis cranking covariant density functional theory (TAC-CDFT) using the Ultimate Cranker code. Comparison with experimental data. Systematics of positive-parity levels in A=189-196 even- and odd-A Pt isotopes.
doi: 10.1103/PhysRevC.100.014328
2018AU04 Phys.Rev.Lett. 121, 182501 (2018) K.Auranen, D.Seweryniak, M.Albers, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.J.Chiara, P.Copp, H.M.David, D.T.Doherty, J.Harker, C.R.Hoffman, R.V.F.Janssens, T.L.Khoo, S.A.Kuvin, T.Lauritsen, G.Lotay, A.M.Rogers, J.Sethi, C.Scholey, R.Talwar, W.B.Walters, P.J.Woods, S.Zhu Superallowed α Decay to Doubly Magic 100Sn RADIOACTIVITY 108Xe, 104Te(α) [from 54Fe(58Ni, 4n)108Xe, E=245 MeV]; measured decay products, Eα, Iα; deduced α-particles energies, T1/2. A heavy self-conjugate nucleus, comparison with available data.
doi: 10.1103/PhysRevLett.121.182501
2018BR15 Phys.Rev. C 98, 024324 (2018) R.Broda, L.W.Iskra, R.V.F.Janssens, B.A.Brown, B.Fornal, J.Wrzesinski, N.Cieplicka-Orynczak, M.P.Carpenter, C.J.Chiara, C.R.Hoffman, F.G.Kondev, G.J.Lane, T.Lauritsen, Zs.Podolyak, D.Seweryniak, W.B.Walters, S.Zhu Two-neutron and core-excited states in 210Pb: Tracing E collectivity and evidence for a new β-decaying isomer in 210Tl NUCLEAR REACTIONS 208Pb(208Pb, X)210Pb, E=1440 MeV; 208Pb(48Ca, X)210Pb, 208Pb(76Ge, X)210Pb, 208Pb(82Se, X)210Pb, 238U(48Ca, X)210Pb, 238U(208Pb, X)210Pb, E=15-25% above the respective Coulomb barriers; measured Eγ, Iγ, delayed γ spectra, γγ-coin, γ(θ), half-lives of isomers and levels by γγ(t), ratio of observed production yields of anticipated 11+ β--decaying isomer in 210Tl and the 8+ isomer in 210Pb using Gammasphere array at ATLAS-ANL facility. 210Pb; deduced high-spin levels, isomers, J, π, conversion coefficients, multipolarities, configurations, B(E2), B(E3). 210Tl; deduced possible 11+ β- decaying isomer. Comparison with large-scale shell model calculations. NUCLEAR STRUCTURE 210Pb, 210Tl; calculated levels, J, π by large-scale shell model calculations, and compared with experimental data.
doi: 10.1103/PhysRevC.98.024324
2018CH13 Nature(London) 554, 7691 (2018) C.J.Chiara, J.J.Carroll, M.P.Carpenter, J.P.Greene, D.J.Hartley, R.V.F.Janssens, G.J.Lane, J.C.Marsh, D.A.Matters, M.Polasik, J.Rzadkiewicz, D.Seweryniak, S.Zhu, S.Bottoni, A.B.Hayes, S.A.Karamian Isomer depletion as experimental evidence of nuclear excitation by electron capture NUCLEAR REACTIONS 7Li(90Zr, 3np), E=840 MeV; measured Eγ, Iγ, γγγ-coin using Gammasphere array at ATLAS-ANL. 93Mo; deduced levels, first experimental evidence of process of nuclear excitation by electron capture (NEEC) through the isomer depletion of 2425-keV isomer and excitation of the 2430-keV intermediate level from the 2425-keV isomer, and observation of 2475-268-685-1478 γ cascade in coincidence. NUCLEAR REACTIONS 90Zr(7Li, 3np), E(cm)=same as above for reverse kinematic reaction; measured Eγ, Iγ, γγ-coin at Australian National Laboratory. 93Mo; deduced levels, non-observation of 2475- and 268-keV γ rays in γγ coincidences in the normal kinematics reaction consistent with NEEC interpretation in the inverse kinematic reaction study at Argonne.
doi: 10.1038/nature25483
2018FO11 Phys.Rev.Lett. 120, 212501 (2018) A.M.Forney, W.B.Walters, C.J.Chiara, R.V.F.Janssens, A.D.Ayangeakaa, J.Sethi, J.Harker, M.Alcorta, M.P.Carpenter, G.Gurdal, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, C.J.Lister, E.A.McCutchan, A.M.Rogers, D.Seweryniak, I.Stefanescu, S.Zhu Novel ΔJ = 1 Sequence in 78Ge: Possible Evidence for Triaxiality NUCLEAR REACTIONS 238U(76Ge, X)78Ge, E=530 MeV; 198Pt, 208Pb(76Ge, X)78Ge, E=450 MeV; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, B(E2). Comparison with available data and calculations.
doi: 10.1103/PhysRevLett.120.212501
2018GA23 Acta Phys.Pol. B49, 555 (2018) E.R.Gamba, A.M.Bruce, M.Rudigier, S.Lalkovski, S.Bottoni, M.P.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.A.Berry, I.Burrows, R.J.Carrol, P.Copp, M.Carmona-Gallardo, D.M.Cullen, T.Daniel, G.Fernandez-Martinez, J.P.Greene, L.A.Gurgi, D.J.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, C.R.Nita, Zs.Podolyak, V.Pucknell, M.Reed, P.H.Regan, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, V.Vedia, E.A.Stefanova, O.Yordanov Fast-timing Measurements in 100Zr Using LaBr3(Ce) Detectors Coupled with Gammasphere RADIOACTIVITY 252Cf(SF); measured 100Zr fission fragment 4+ state Eγ, Iγ, T1/2, fission partners fragments using Digital Gammasphere (DGS) acquisition with hybrid detector made of 51 HPGe from Gammasphere and 25 LaBr3(Ce) scintillators (part of UK NuSTAR Collaboration); deduced first excited state T1/2, deformation, quadrupole moment, B(E2), LaBr3(Ce) γ-γ matrix, DGS γ-γ matrix, centroid difference between delayed and anti-delayed time distributions. Results preliminary, the main aim was the feasibility study.
doi: 10.5506/aphyspolb.49.555
2018HA19 Phys.Rev.Lett. 120, 182502 (2018) D.J.Hartley, F.G.Kondev, R.Orford, J.A.Clark, G.Savard, A.D.Ayangeakaa, S.Bottoni, F.Buchinger, M.T.Burkey, M.P.Carpenter, P.Copp, D.A.Gorelov, K.Hicks, C.R.Hoffman, C.Hu, R.V.F.Janssens, J.W.Klimes, T.Lauritsen, J.Sethi, D.Seweryniak, K.S.Sharma, H.Zhang, S.Zhu, Y.Zhu Masses and β-Decay Spectroscopy of Neutron-Rich Odd-Odd 160, 162Eu Nuclei: Evidence for a Subshell Gap with Large Deformation at N=98 RADIOACTIVITY 160,162Eu(β-); measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, T1/2. ATOMIC MASSES 160,162Eu; measured frequency ratios; deduced mass excess (ME) for the ground and isomeric states.
doi: 10.1103/PhysRevLett.120.182502
2018JI01 Phys.Rev. C 97, 012801 (2018) C.L.Jiang, D.Santiago-Gonzalez, S.Almaraz-Calderon, K.E.Rehm, B.B.Back, K.Auranen, M.L.Avila, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, C.Dickerson, B.DiGiovine, J.P.Greene, C.R.Hoffman, R.V.F.Janssens, B.P.Kay, S.A.Kuvin, T.Lauritsen, R.C.Pardo, J.Sethi, D.Seweryniak, R.Talwar, C.Ugalde, S.Zhu, D.Bourgin, S.Courtin, F.Haas, M.Heine, G.Fruet, D.Montanari, D.G.Jenkins, L.Morris, A.Lefebvre-Schuhl, M.Alcorta, X.Fang, X.D.Tang, B.Bucher, C.M.Deibel, S.T.Marley Reaction rate for carbon burning in massive stars NUCLEAR REACTIONS 12C(12C, p)23Na, (12C, α)20Ne, E=5.5-10 MeV; measured Eγ, Iγ, (particle)γ-coin, σ(E) using Gammasphere array and an array of three annular double-sided silicon strip detectors at the ATLAS-ANL facility; deduced S factors and astrophysical reaction rates. Comparison with previous measurements, and with data from other reactions. Relevance to carbon burning is a critical phase for nucleosynthesis in massive stars.
doi: 10.1103/PhysRevC.97.012801
2018JO01 Phys.Rev. C 97, 024327 (2018) M.D.Jones, A.O.Macchiavelli, M.Wiedeking, L.A.Bernstein, H.L.Crawford, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, I.Y.Lee, M.Salathe, A.Wiens, A.D.Ayangeakaa, D.L.Bleuel, S.Bottoni, M.P.Carpenter, H.M.Davids, J.Elson, A.Gorgen, M.Guttormsen, R.V.F.Janssens, J.E.Kinnison, L.Kirsch, A.C.Larsen, T.Lauritsen, W.Reviol, D.G.Sarantites, S.Siem, A.V.Voinov, S.Zhu Examination of the low-energy enhancement of the γ-ray strength function of 56Fe NUCLEAR REACTIONS 56Fe(p, p'), E=16 MeV; measured Eγ, Iγ, γ(θ) for discrete and continuum γ rays, γ(linear polarization) for primary γ rays, pγγ-coin using GRETINA (Gamma-Ray Energy Tracking In-beam Nuclear Array) for γ detection and Washington University Phoswich Wall for protons; deduced multipolarity of continuum γ rays, γ-ray strength function (γSF) with the model-independent ratio method, low-energy enhancement, identical shapes for γSFs constructed with 2+ and 4+ final states consistent with Brink hypothesis. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.97.024327
2018LU08 Phys.Rev. C 97, 044312 (2018) R.S.Lubna, V.Tripathi, S.L.Tabor, P.-L.Tai, K.Kravvaris, P.C.Bender, A.Volya, M.Bouhelal, C.J.Chiara, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, E.A.McCutchan, S.Zhu, R.M.Clark, P.Fallon, A.O.Macchiavelli, S.Paschalis, M.Petri, W.Reviol, D.G.Sarantites Intruder configurations of excited states in the neutron-rich isotopes 33P and 34P NUCLEAR REACTIONS 18O(18O, 2np), (18O, np), E=24 MeV; measured Eγ, Iγ, γ(θ), γγ-, pγ-coin using Gammasphere array for γ detection, and 4π Microball scintillator array for charged particle detection at ATLAS-ANL facility. 33,34P; deduced levels, J, π, configurations. Comparison with shell-model calculations using PSDPF interaction. NUCLEAR STRUCTURE 31,32,33,34,35P; calculated levels, J, π using shell-model with the PSDPF interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.97.044312
2018RE09 Phys.Rev. C 98, 014328 (2018) W.Reviol, D.G.Sarantites, J.M.Elson, J.E.Kinnison, A.Gargano, R.V.F.Janssens, J.M.Allmond, A.D.Ayangeakaa, S.Bottoni, M.P.Carpenter, H.M.David, A.Galindo-Uribarri, N.Itaco, T.Lauritsen, E.Padilla-Rodal, S.Zhu Low-spin structure of the N=82 nucleus 137Cs NUCLEAR REACTIONS 10B(136Xe, 9Be), E=560 MeV; measured Eγ, Iγ, particle spectra, γγ- and (9Be)γ-coin, γ(θ) using Gammasphere array for γ detection and Phoswich Wall array for charged particle detection at ATLAS-ANL. 137Cs; deduced levels, J, π, multipolarities, configurations. Comparison of level spectra with shell-model calculations. Systematics of level energies in N=82 133Sb, 135I, and 137Cs isotones.
doi: 10.1103/PhysRevC.98.014328
2018SA13 Phys.Rev.Lett. 120, 122503 (2018) D.Santiago-Gonzalez, K.Auranen, M.L.Avila, A.D.Ayangeakaa, B.B.Back, S.Bottoni, M.P.Carpenter, J.Chen, C.M.Deibel, A.A.Hood, C.R.Hoffman, R.V.F.Janssens, C.L.Jiang, B.P.Kay, S.A.Kuvin, A.Lauer, J.P.Schiffer, J.Sethi, R.Talwar, I.Wiedenhover, J.Winkelbauer, S.Zhu Probing the Single-Particle Character of Rotational States in 19F Using a Short-Lived Isomeric Beam NUCLEAR REACTIONS 2H(18F, p), E=14 MeV/nucleon; measured reaction products, Ep, Ip. 19F; deduced energy levels, J, π, relative spectroscopic factors, rotational band. Comparison with shell-model calculations.
doi: 10.1103/PhysRevLett.120.122503
2018ST06 Phys.Lett. B 779, 456 (2018) I.Stefan, B.Fornal, S.Leoni, F.Azaiez, C.Portail, J.C.Thomas, A.V.Karpov, D.Ackermann, P.Bednarczyk, Y.Blumenfeld, S.Calinescu, A.Chbihi, M.Ciemala, N.Cieplicka-Orynczak, F.C.L.Crespi, S.Franchoo, F.Hammache, L.W.Iskra, B.Jacquot, R.V.F.Janssens, O.Kamalou, T.Lauritsen, M.Lewitowicz, L.Olivier, S.M.Lukyanov, M.Maccormick, A.Maj, P.Marini, I.Matea, M.A.Naumenko, F.de Oliveira Santos, C.Petrone, Yu.E.Penionzhkevich, F.Rotaru, H.Savajols, O.Sorlin, M.Stanoiu, B.Szpak, O.B.Tarasov, D.Verney Neutron-rich nuclei produced at zero degrees in damped collisions induced by a beam of 18O on a 238U target NUCLEAR REACTIONS 238U(18O, X)12B/13B/14B/15B/13C/14C/15C/16C/17C/18C/19C, 14N/15N/16N/17N/18N/19N/20N, 16O/17O/18O/19O/20O/21O/22O, 17F/18F/19F/20F/21F/22F/23F/24F/22Ne/23Ne/24Ne/25Ne, E=8.5 MeV/nucleon; measured reaction products; deduced σ(θ), momentum distributions. Comparison with theoretical calculations.
doi: 10.1016/j.physletb.2018.02.037
2018WA22 Phys.Rev. C 98, 024313 (2018) R.Wadsworth, N.S.Kelsall, D.G.Jenkins, I.Ragnarsson, S.M.Fischer, D.P.Balamuth, P.A.Hausladen, G.C.Ball, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, R.M.Clark, P.Fallon, A.O.Macchiavelli, C.E.Svensson, S.J.Freeman, D.G.Sarantites Terminating states in the positive-parity structures of 67As NUCLEAR REACTIONS 40Ca(36Ar, p2α), E=145 MeV; measured Eγ, Iγ, γγ- and (particle)γ-coin, γγ(θ)(DCO) using Gammasphere array for γ detection, and MICROBALL CsI array for charged particles at ATLAS-ANL facility. 67As; deduced levels, J, π, multipolarities, bands, and noncollective terminating states; calculated tilted Fermi-surface plots for protons and neutrons. Comparison with configuration dependent cranked Nilsson-Strutinsky calculations.
doi: 10.1103/PhysRevC.98.024313
2018WI09 Phys.Rev. C 98, 041302 (2018) W.Witt, V.Werner, N.Pietralla, M.Albers, A.D.Ayangeakaa, B.Bucher, M.P.Carpenter, D.Cline, H.M.David, A.Hayes, C.Hoffman, R.V.F.Janssens, B.P.Kay, F.G.Kondev, W.Korten, T.Lauritsen, O.Moller, G.Rainovski, G.Savard, D.Seweryniak, J.Smith, R.Stegmann, S.Zhu, C.Y.Wu Sub-shell closure and shape coexistence in the transitional nucleus 98Zr NUCLEAR REACTIONS 196Pt(98Zr, 98Zr'), E=464 MeV from CARIBU source at ATLAS-ANL facility; measured recoils, Eγ, Iγ, (recoil)γ-coin using CHICO2 array of segmented parallel-plate avalanche counter (PPAC) for recoil detection, and GRETINA array of segmented HPGe detectors for γ detection. Coulomb excitation. 98Zr; deduced levels, upper limit of B(E2) for the first 2+ state. Comparison with shell model and Monte-Carlo shell model calculations, and with previous experimental values. Systematics of B(E2) values for the first 2+ states in 90,92,94,96,98,100,102,104,106Zr.
doi: 10.1103/PhysRevC.98.041302
2017AF02 Phys.Rev. C 96, 035801 (2017) L.Afanasieva, J.C.Blackmon, C.M.Deibel, J.Lai, L.E.Linhardt, B.C.Rasco, D.Seweryniak, M.Alcorta, M.P.Carpenter, J.A.Clark, C.R.Hoffman, R.V.F.Janssens, S.Zhu γ spectroscopy of states in 32Cl relevant for the 31S(p, γ)32Cl reaction rate NUCLEAR REACTIONS 10B(24Mg, 2n)32Cl, E=75 MeV; measured Eγ, Iγ, γγ-, (32Cl recoils)γ-, and (32Cl recoils)γγ-coin using Fragment Mass Analyzer (FMA) and Gammasphere array at ATLAS-ANL facility. 32Cl; deduced levels, J, π, energies, strengths, σ, Γγ and Γp of resonances. 31S(p, γ)32Cl, T=0.1-1.0 GK; deduced astrophysical reaction rates.
doi: 10.1103/PhysRevC.96.035801
2017AM01 Phys.Rev. C 95, 014330 (2017) B.M.S.Amro, C.J.Lister, E.A.McCutchan, W.Loveland, P.Chowdhury, S.Zhu, A.D.Ayangeakaa, J.S.Barrett, M.P.Carpenter, C.J.Chiara, J.P.Greene, J.L.Harker, R.V.F.Janssens, T.Lauritsen, A.A.Sonzogni, W.B.Walters, R.Yanez γ-ray spectroscopy of 209Tl NUCLEAR REACTIONS 208Pb(136Xe, X)209Tl, E=785 MeV; measured Eγ, Iγ, γΓ-coin, delayed γ, half-lives of isomers using Gammasphere array at ATLAS-ANL facility. 209Tl; deduced levels, J, π, internal conversion coefficients, multipolarities, B(E2), configurations.
doi: 10.1103/PhysRevC.95.014330
2017BO23 Phys.Lett. B 775, 271 (2017) S.Bottoni, S.Zhu, R.V.F.Janssens, M.P.Carpenter, Y.Tsunoda, T.Otsuka, A.O.Macchiavelli, D.Cline, C.Y.Wu, A.D.Ayangeakaa, B.Bucher, M.Q.Buckner, C.M.Campbell, C.J.Chiara, H.L.Crawford, M.Cromaz, H.M.David, P.Fallon, A.Gade, J.P.Greene, J.Harker, A.B.Hayes, C.R.Hoffman, B.P.Kay, A.Korichi, T.Lauritsen, J.Sethi, D.Seweryniak, W.B.Walters, D.Weisshaar, A.Wiens Nucleon correlations and the structure of 7130Zn41 NUCLEAR REACTIONS 70Zn(48Ca, 47Ca)71Zn, E=170 MeV; 197Au(70Zn, X)71Zn, E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, decay scheme, J, π, modest oblate deformation. Comparison with Monte-Carlo shell-model calculations.
doi: 10.1016/j.physletb.2017.11.003
2017BR08 Phys.Rev. C 95, 064308 (2017) R.Broda, R.V.F.Janssens, L.W.Iskra, J.Wrzesinski, B.Fornal, M.P.Carpenter, C.J.Chiara, N.Cieplicka-Orynczak, C.R.Hoffman, F.G.Kondev, W.Krolas, T.Lauritsen, Zs.Podolyak, D.Seweryniak, C.M.Shand, B.Szpak, W.B.Walters, S.Zhu, B.A.Brown Doubly magic 208Pb: High-spin states, isomers, and E3 collectivity in the yrast decay NUCLEAR REACTIONS 208Pb(48Ca, X), E=430 MeV; 208Pb(208Pb, X), E=1440 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ), half-lives of isomers by γγ(t), in-beam and off-beam Iγ using Gammasphere array at ATLAS-ANL facility. 208Pb; deduced high-spin levels, new isomers, J, π, total electron-conversion coefficients from intensity balances, multipolarities, mixing ratios, B(E1), B(E2), B(E3), B(M1), B(M2), 1p-1h yrast and near-yrast states and their rotational interpretation, 2p-2h states. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.95.064308
2017BU07 Phys.Rev.Lett. 118, 152504 (2017) B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, R.N.Bernard, L.M.Robledo, T.R.Rodriguez, D.Cline, A.B.Hayes, A.D.Ayangeakaa, M.Q.Buckner, C.M.Campbell, M.P.Carpenter, J.A.Clark, H.L.Crawford, H.M.David, C.Dickerson, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, G.Savard, D.Seweryniak, R.Vondrasek Direct Evidence for Octupole Deformation in 146Ba and the Origin of Large E1 Moment Variations in Reflection-Asymmetric Nuclei NUCLEAR REACTIONS 208Pb(146Ba, 146Ba'), E=659 MeV; measured reaction products, Eγ, Iγ. 144,146,148Ba; deduced energy levels, J, π, B(Eλ), quadrupole and octupole deformation parameters. Calculated HFB potential energy surfaces, neutron single-particle energies. Coulomb excitation, comparison with available data.
doi: 10.1103/PhysRevLett.118.152504
2017CR03 Phys.Rev. C 95, 064317 (2017) H.L.Crawford, A.O.Macchiavelli, P.Fallon, M.Albers, V.M.Bader, D.Bazin, C.M.Campbell, R.M.Clark, M.Cromaz, J.Dilling, A.Gade, A.Gallant, J.D.Holt, R.V.F.Janssens, R.Krucken, C.Langer, T.Lauritsen, I.Y.Lee, J.Menendez, S.Noji, S.Paschalis, F.Recchia, J.Rissanen, A.Schwenk, M.Scott, J.Simonis, S.R.Stroberg, J.A.Tostevin, C.Walz, D.Weisshaar, A.Wiens, K.Wimmer, S.Zhu Unexpected distribution of ν1f7/2 strength in 49Ca NUCLEAR REACTIONS 9Be(48Ca, 47Ca), (50Ca, 49Ca), E not given, [secondary 48,50Ca beams from 9Be(82Se, X), E=140 MeV/nucleon primary reaction, and using A1900 fragment separator at NSCL-MSU]; measured reaction 1n-knockout products using S800 magnetic spectrograph, Eγ, Iγ, γγ-coin, γ(particle) correlated events, using GRETINA array for γ detection, σ(-1n), parallel momentum distributions. 47,49Ca; deduced levels, J, π, l-transfer, γ-ray yields by fitting the data with GEANT4 simulation, spectroscopic factors, configurations, spectroscopic strengths for the 1f7/2 neutron hole states. Comparison with shell-model calculations based on NN+3N force in ν(pf) model space, GXPF1 interaction, and NN+3N including the ν1g9/2 orbital.
doi: 10.1103/PhysRevC.95.064317
2017DI02 Phys.Rev. C 95, 024301 (2017) B.Ding, Z.Liu, D.Seweryniak, P.J.Woods, H.L.Wang, J.Yang, H.L.Liu, C.N.Davids, M.P.Carpenter, T.Davinson, R.V.F.Janssens, R.D.Page, A.P.Robinson, J.Shergur, S.Sinha, S.Zhu, X.D.Tang, J.G.Wang, T.H.Huang, W.Q.Zhang, M.D.Sun, X.Y.Liu, H.Y.Lu First identification of excited states in 117Ba using the recoil-β-delayed proton tagging technique NUCLEAR REACTIONS 64Zn(58Ni, 3n2p), E=305 MeV; measured Eγ, Iγ, (delayed protons)γ-coin, recoil-βp decay tagging using fragment mass analyzer (FMA), and Gammasphere array at ATLAS-ANL facility. 117Ba; deduced high-spin levels, J, π, bands, alignments, Routhian energies, configurations. Comparison with cranked shell-model calculations. Level-spacing systematics for negative- and positive-parity bands in 117,119,121,123,125,127,129Ba.
doi: 10.1103/PhysRevC.95.024301
2017DO01 Phys.Lett. B 766, 334 (2017) D.T.Doherty, J.M.Allmond, R.V.F.Janssens, W.Korten, S.Zhu, M.Zielinska, D.C.Radford, A.D.Ayangeakaa, B.Bucher, J.C.Batchelder, C.W.Beausang, C.Campbell, M.P.Carpenter, D.Cline, H.L.Crawford, H.M.David, J.P.Delaroche, C.Dickerson, P.Fallon, A.Galindo-Uribarri, F.G.Kondev, J.L.Harker, A.B.Hayes, M.Hendricks, P.Humby, M.Girod, C.J.Gross, M.Klintefjord, K.Kolos, G.J.Lane, T.Lauritsen, J.Libert, A.O.Macchiavelli, P.J.Napiorkowski, E.Padilla-Rodal, R.C.Pardo, W.Reviol, D.G.Sarantites, G.Savard, D.Seweryniak, J.Srebrny, R.Varner, R.Vondrasek, A.Wiens, E.Wilson, J.L.Wood, C.Y.Wu Triaxiality near the 110Ru ground state from Coulomb excitation NUCLEAR REACTIONS 208Pb(110Ru, 110Ru'), E=430 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energy spectrum, B(E2) using GOSIA fit of the experimental data, level scheme, J, π, triaxial deformation. Comparison with available data.
doi: 10.1016/j.physletb.2017.01.031
2017HA03 Phys.Rev. C 95, 014321 (2017) D.J.Hartley, L.L.Riedinger, R.V.F.Janssens, S.N.T.Majola, M.A.Riley, J.M.Allmond, C.W.Beausang, M.P.Carpenter, C.J.Chiara, N.Cooper, D.Curien, B.J.P.Gall, P.E.Garrett, F.G.Kondev, W.D.Kulp, T.Lauritsen, E.A.McCutchan, D.Miller, S.Miller, J.Piot, N.Redon, J.F.Sharpey-Schafer, J.Simpson, I.Stefanescu, X.Wang, V.Werner, J.L.Wood, C.-H.Yu, S.Zhu, J.Dudek Investigation of negative-parity states in 156Dy: Search for evidence of tetrahedral symmetry NUCLEAR REACTIONS 148Nd(12C, 4n), E=65 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO) using GAMMASPHERE array at ATLAS-ANL facility. 156Dy; deduced high-spin levels, J, π, multipolarities, negative-parity bands, alignments, configurations, B(E2)/B(E1) ratios and octupole excitations, no evidence for tetrahedral symmetry. Systematics of Kπ=0-, 3- and Kπ=1-, 4- states in N=90 isotones 152Sm, 154Gd, 156Dy and 160Yb.
doi: 10.1103/PhysRevC.95.014321
2017LA09 Phys.Scr. 92, 074002 (2017) T.Lauritsen, A.Korichi, T.L.Khoo, M.P.Carpenter, R.V.F.Janssens, L.A.Riley, D.Seweryniak, S.Zhu Measuring the entry distribution and the quasi-continuum of γ rays with tracking arrays
doi: 10.1088/1402-4896/aa709c
2017MA39 Phys.Rev. C 96, 014318 (2017) D.A.Matters, F.G.Kondev, N.Aoi, Y.Ayyad, A.P.Byrne, M.P.Carpenter, J.J.Carroll, C.J.Chiara, P.M.Davidson, G.D.Dracoulis, Y.D.Fang, C.R.Hoffman, R.O.Hughes, E.Ideguchi, R.V.F.Janssens, S.Kanaya, B.P.Kay, T.Kibedi, G.J.Lane, T.Lauritsen, J.W.McClory, P.Nieminen, S.Noji, A.Odahara, H.J.Ong, A.E.Stuchbery, D.T.Tran, H.Watanabe, A.N.Wilson, Y.Yamamoto, S.Zhu In-beam γ-ray spectroscopy studies of medium-spin states in the odd-odd nucleus 186Re NUCLEAR REACTIONS 186W(d, 2n)186Re, E=12.5, 14.5 MeV; measured Eγ, Iγ, γγ-coin using Clover Array Gamma-Ray spectrometer for Advanced research (CAGRA) at RCNP, Osaka University, and CAESAR spectrometer at the 14UD Pelletron accelerator of the Australian National University. 186Re; deduced high-spin levels, J, π, K-shell conversion coefficients, multipolarities, bands, configurations, branching ratios and gK-gR values. Comparison with multi-quasiparticle blocking calculations.
doi: 10.1103/PhysRevC.96.014318
2017RU02 Acta Phys.Pol. B48, 351 (2017) M.Rudigier, S.Lalkovski, E.R.Gamba, A.M.Bruce, Zs.Podolyak, P.H.Regan, M.Carpenter, S.Zhu, A.D.Ayangeakaa, J.T.Anderson, T.Berry, S.Bottoni, I.Burrows, R.Carroll, P.Copp, D.Cullen, T.Daniel, L.Fraile, M.Carmona-Gallardo, A.Grant, J.P.Greene, L.A.Guegi, D.Hartley, R.Ilieva, S.Ilieva, R.V.F.Janssens, F.G.Kondev, T.Kroll, G.J.Lane, T.Lauritsen, I.Lazarus, G.Lotay, G.Fernandez-Martinez, V.Pucknell, M.Reed, J.Rohrer, J.Sethi, D.Seweryniak, C.M.Shand, J.Simpson, M.Smolen, E.Stefanova, V.Vedia, O.Yordanov Fast Timing Measurement Using an LaBr3(Ce) Scintillator Detector Array Coupled with Gammasphere
doi: 10.5506/APhysPolB.48.351
2017ST09 Phys.Lett. B 770, 77 (2017) R.Stegmann, C.Stahl, G.Rainovski, N.Pietralla, C.Stoyanov, M.P.Carpenter, R.V.F.Janssens, M.Lettmann, T.Moller, O.Moller, V.Werner, S.Zhu Identification of the one-quadrupole phonon 2+1, ms state of 204Hg NUCLEAR REACTIONS 12C, 27Al(204Hg, 204Hg'), E=890 MeV; measured reaction products, Eγ, Iγ. 204Hg; deduced energy levels, J, π, B(E2), level T1/2. DSAM, Coulomb excitation. Comparison with Quasi-particle Phonon Model (QPM) calculations.
doi: 10.1016/j.physletb.2017.04.032
2017TA18 Phys.Rev. C 96, 014323 (2017) P.-L.Tai, S.L.Tabor, R.S.Lubna, K.Kravvaris, P.C.Bender, V.Tripathi, A.Volya, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, E.A.McCutchan, S.Zhu, R.M.Clark, P.Fallon, S.Paschalis, M.Petri, A.O.Macchiavelli, W.Reviol, D.G.Sarantites Cross-shell excitations in 31Si NUCLEAR REACTIONS 18O(18O, nα)31Si, E=24 MeV; measured Eα, Eγ, Iγ, γγ-, αγ-coin using Gammasphere and Microball detector arrays at ATLAS-ANL facility. 31Si; deduced levels, J, π, configurations, radiative decays from neutron-unbound levels. Comparison with resonances observed previously in 30Si(n, n) reaction, and with shell-model calculations using USDA and WBP cross-shell interactions. NUCLEAR STRUCTURE 29,31,33Si; calculated levels, J, π using shell model with the WBP-b interaction. Comparison with experimental data. 30Si(d, p)31Si; calculated single-neutron spectroscopic factors using the USDA (WBP-b) interaction, and compared with experimental data.
doi: 10.1103/PhysRevC.96.014323
2016AL18 Phys.Rev. C 94, 034301 (2016) M.Albers, S.Zhu, A.D.Ayangeakaa, R.V.F.Janssens, J.Gellanki, I.Ragnarsson, M.Alcorta, T.Baugher, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, H.M.David, A.N.Deacon, B.DiGiovine, A.Gade, C.R.Hoffman, F.G.Kondev, T.Lauritsen, C.J.Lister, E.A.McCutchan, C.Nair, A.M.Rogers, D.Seweryniak Single-particle and collective excitations in 62Ni NUCLEAR REACTIONS 26Mg(48Ca, 4n2α)62Ni, E=275, 320 MeV; measured reaction products identified by mass (A) and charge (Z), Eγ, Iγ, γ(θ), γγ-, (62Ni)γ-coin, level half-lives and transition quadrupole moments using fragment mass analyzer (FMA) and Gammasphere array at ATLAS-ANL facility. 62Ni; deduced high-spin levels, J, π, multipolarity, bands, deformation β2, alignment plots, configurations. Comparison with shell-model calculations using JUN45 and jj4b interactions, and with Nilsson-Strutinsky calculations. Comparison of alignment plots with those in 58Cr, 60Fe, 63Ni and 64Zn.
doi: 10.1103/PhysRevC.94.034301
2016AY01 Phys.Lett. B 754, 254 (2016) A.D.Ayangeakaa, R.V.F.Janssens, C.Y.Wu, J.M.Allmond, J.L.Wood, S.Zhu, M.Albers, S.Almaraz-Calderon, B.Bucher, M.P.Carpenter, C.J.Chiara, D.Cline, H.L.Crawford, H.M.David, J.Harker, A.B.Hayes, C.R.Hoffman, B.P.Kay, K.Kolos, A.Korichi, T.Lauritsen, A.O.Macchiavelli, A.Richard, D.Seweryniak, A.Wiens Shape coexistence and the role of axial asymmetry in 72Ge NUCLEAR REACTIONS 208Pb(72Ge, 72Ge'), E=301 MeV; measured reaction products, Eγ, Iγ. 72Ge; deduced energy levels, J, π, reduced E2 matrix elements, B(E2) values. Comparison with available data.
doi: 10.1016/j.physletb.2016.01.036
2016AY04 Phys.Rev. C 93, 054317 (2016) A.D.Ayangeakaa, U.Garg, C.M.Petrache, S.Guo, P.W.Zhao, J.T.Matta, B.K.Nayak, D.Patel, R.V.F.Janssens, M.P.Carpenter, C.J.Chiara, F.G.Kondev, T.Lauritsen, D.Seweryniak, S.Zhu, S.S.Ghugre, R.Palit In-beam spectroscopy of medium- and high-spin states in 133Ce NUCLEAR REACTIONS 116Cd(22Ne, 5n), E=112 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ) using Gammasphere array at ATLAS-ANL facility, enriched target. 133Ce; deduced high-spin levels, J, π, multipolarity, dipole and quadrupole bands, alignments, configurations, rich diversity of collective phenomena. Comparisons with calculations based on cranked Nilsson-Strutinsky (CNS) model and tilted axis cranking covariant density functional theory (TAC-CDFT).
doi: 10.1103/PhysRevC.93.054317
2016BA04 Phys.Rev. C 93, 014313 (2016) T.Baugher, A.Gade, R.V.F.Janssens, S.M.Lenzi, D.Bazin, M.P.Carpenter, C.J.Chiara, A.N.Deacon, S.J.Freeman, G.F.Grinyer, C.R.Hoffman, B.P.Kay, F.G.Kondev, T.Lauritsen, E.M.Lunderberg, S.McDaniel, K.C.Meierbachtol, A.Ratkiewicz, S.R.Stroberg, K.A.Walsh, D.Weisshaar, S.Zhu In-beam γ spectroscopy of 63Mn NUCLEAR REACTIONS 9Be(63Mn, 63Mn'), E=84 meV/nucleon, [secondary 63Mn from 9Be(76Ge, X), E=130 MeV/nucleon primary reaction]; measured Eγ, Iγ, (63Mn)γ-, γγ-coin, level half-lives by Doppler line-shape analysis using SeGA and GRETINA arrays for γ detection, A1900 fragment separator and S-800 spectrograph at NSCL-MSU accelerator facility; recreated Doppler-corrected γ spectra. 63Mn; deduced levels, J, π, B(M1), B(E2). Comparison with large-scale shell-model calculations using different model spaces and effective interactions. Systematics of 59,61,63Mn level structures.
doi: 10.1103/PhysRevC.93.014313
2016BU02 Phys.Rev.Lett. 116, 112503 (2016) B.Bucher, S.Zhu, C.Y.Wu, R.V.F.Janssens, D.Cline, A.B.Hayes, M.Albers, A.D.Ayangeakaa, P.A.Butler, C.M.Campbell, M.P.Carpenter, C.J.Chiara, J.A.Clark, H.L.Crawford, M.Cromaz, H.M.David, C.Dickerson, E.T.Gregor, J.Harker, C.R.Hoffman, B.P.Kay, F.G.Kondev, A.Korichi, T.Lauritsen, A.O.Macchiavelli, R.C.Pardo, A.Richard, M.A.Riley, G.Savard, M.Scheck, D.Seweryniak, M.K.Smith, R.Vondrasek, A.Wiens Direct Evidence of Octupole Deformation in Neutron-Rich 144Ba NUCLEAR REACTIONS 208Pb(144Ba, 144Ba'), E=650 MeV; measured reaction products, Eγ, Iγ. 144Ba; deduced yields, E2 and E3 matrix elements, quadrupole moments, deformation parameters, B(E2), B(E3). Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.116.112503
2016CR05 Phys.Lett. B 763, 108 (2016) B.P.Crider, C.J.Prokop, S.N.Liddick, M.Al-Shudifat, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Chen, C.J.Chiara, H.M.David, A.C.Dombos, S.Go, R.Grzywacz, J.Harker, R.V.F.Janssens, N.Larson, T.Lauritsen, R.Lewis, S.J.Quinn, F.Recchia, A.Spyrou, S.Suchyta, W.B.Walters, S.Zhu Shape coexistence from lifetime and branching-ratio measurements in 68, 70Ni RADIOACTIVITY 70Co, 68Fe, 68Co(β-) [from 9Be(76Ge, X)70Co/68Fe]; measured reaction products, Eγ, Iγ; deduced energy levels, J, π, T1/2, branching ratios, B(E2).
doi: 10.1016/j.physletb.2016.10.020
2016HA36 Phys.Rev. C 94, 054329 (2016) D.J.Hartley, R.V.F.Janssens, L.L.Riedinger, M.A.Riley, X.Wang, S.L.Miller, A.D.Ayangeakaa, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, U.Garg, G.Gurdal, S.S.Hota, F.G.Kondev, T.Lauritsen, W.C.Ma, J.Matta, E.A.McCutchan, S.Mukhopadhyay, E.E.Pedicini, J.R.Vanhoy, S.Zhu First observation of rotational structures in 168Re NUCLEAR REACTIONS 118Sn(55Mn, 5n), E=260 MeV; measured Eγ, Iγ, γγ-coin using Gammasphere array at ATLAS-ANL facility. 168Re; deduced high-spin levels, J, π, γ-branching ratios, bands, alignments, band crossings, B(M1)/B(E2) ratios, configuration. Comparison of B(M1)/B(E2) ratios with theoretical calculations. Systematics of level energies for πh11/2νi13/2 bands in 166,168,170,172,174Re. Systematics of signature splitting for πh11/2νi13/2 bands in 166,168,170,172,174Re, 164,166,168,170,172Ta, 162,164,166,168,170Lu.
doi: 10.1103/PhysRevC.94.054329
2016HO13 Phys.Rev. C 94, 021303 (2016) S.S.Hota, S.K.Tandel, P.Chowdhury, I.Ahmad, M.P.Carpenter, C.J.Chiara, J.P.Greene, C.R.Hoffman, E.G.Jackson, R.V.F.Janssens, B.P.Kay, T.L.Khoo, F.G.Kondev, S.Lakshmi, S.Lalkovski, T.Lauritsen, C.J.Lister, E.A.McCutchan, K.Moran, D.Peterson, U.Shirwadkar, D.Seweryniak, I.Stefanescu, Y.Toh, S.Zhu Population and decay of a Kπ = 8- two-quasineutron isomer in 244Pu NUCLEAR REACTIONS 244Pu(208Pb, 208Pb'), E=1430 MeV; 244Pu(47Ti, 47TI'), E=305 MeV; measured Eγ, Iγ, γγ-coin, M1/E2 branching ratios, prompt and off-beam γ rays, half-life of a 2-qp 8- isomer using Gammasphere array at ATLAS-ANL. 244Pu; deduced high-spin levels, J, π, rotational bands, multipolarity, configurations, kinematic and dynamic moments of inertia, (gk-gR)/Q0, reduced hindrance factors for transitions from the isomer. Comparison with multi-qp calculations using Woods-Saxon potential and Lipkin-Nogami pairing. Systematics of moment of inertia plots and 8- isomers for 244Pu, 250Fm and 252No.
doi: 10.1103/PhysRevC.94.021303
2016IS03 Phys.Rev. C 93, 014303 (2016) L.W.Iskra, R.Broda, R.V.F.Janssens, C.J.Chiara, M.P.Carpenter, B.Fornal, N.Hoteling, F.G.Kondev, W.Krolas, T.Lauritsen, T.Pawlat, D.Seweryniak, I.Stefanescu, W.B.Walters, J.Wrzesinski, S.Zhu Shell-model states with seniority ν = 3, 5, and 7 in odd-A neutron-rich Sn isotopes NUCLEAR REACTIONS 208Pb, 238U(48Ca, X), E=330 MeV; 238U(64Ni, F), E=430 MeV; measured Eγ, Iγ, γγ-coin, delayed γγ-coin, isomer half-lives using Gammasphere array at ATLAS-ANL facility. 115,117,119,121,123,125,127,129Sn; measured yields of reaction products. 119,121,123,125Sn; deduced high-spin levels, J, π, multipolarity, high-seniority states, isomers, B(E1), B(E2), B(M2), B(E3). Comparison with shell model calculations with jj55pn interactions. Systematics of yrast levels and B(Eλ) values for 117,119,121,123,125,127,129Sn. Systematics of B(E2) values for 10+ to 8+ and 19/2+ to 15/2+ isomeric transitions in A=116-130 Sn isotopes. NUCLEAR STRUCTURE 119,121,123,125,127,129Sn; calculated levels, J, π using shell model with jj55pn interaction. Comparison with experimental spectra.
doi: 10.1103/PhysRevC.93.014303
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