NSR Query Results
Output year order : Descending NSR database version of April 11, 2024. Search: Author = H.M.David Found 31 matches. 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
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
2019BA26 Phys.Rev.Lett. 122, 232503 (2019) K.Banerjee, D.J.Hinde, M.Dasgupta, E.C.Simpson, D.Y.Jeung, C.Simenel, B.M.A.Swinton-Bland, E.Williams, I.P.Carter, K.J.Cook, H.M.David, C.E.Dullmann, J.Khuyagbaatar, B.Kindler, B.Lommel, E.Prasad, C.Sengupta, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Yakushev Mechanisms Suppressing Superheavy Element Yields in Cold Fusion Reactions NUCLEAR REACTIONS 208Pb(50Ti, X), (48Ca, X), (54Cr, X), E not given; analyzed available data; deduced projectile impact on drastic fall in the symmetric fission yield, which is reflected in the measured mass-angle distribution by the presence of competing fast nonequilibrium deep inelastic and quasifission processes.
doi: 10.1103/PhysRevLett.122.232503
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
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
2018KH05 Phys.Rev. C 97, 064618 (2018) J.Khuyagbaatar, H.M.David, D.J.Hinde, I.P.Carter, K.J.Cook, M.Dasgupta, Ch.E.Dullmann, D.Y.Jeung, B.Kindler, B.Lommel, D.H.Luong, E.Prasad, D.C.Rafferty, C.Sengupta, C.Simenel, E.C.Simpson, J.F.Smith, K.Vo-Phuoc, J.Walshe, A.Wakhle, E.Williams, A.Yakushev Nuclear structure dependence of fusion hindrance in heavy element synthesis NUCLEAR REACTIONS 204,208Pb(48Ti, X), E=240.0, 245.0, 252.2, 259.0, 270.0, 280.0 MeV; 206,208Pb(50Ti, X), E=236.0, 240.0, 252.0, 258.0, 264.0, 270.0, 280.2 MeV; measured reaction products, mass ratio and angular distributions (MAD) of fragments, double differential σ(θ, MR), and widths using CUBE detector array at the Heavy Ion Accelerator Facility of Australian National University. 206Pb(36S, X), (34S, X), (48Ti, X), (50Ti, X), E*=25-60 MeV; calculated mean-squared angular momenta, widths and MR distributions, and compared with experimental data. Discussed impact of nuclear structure on fusion-evaporation reactions.
doi: 10.1103/PhysRevC.97.064618
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
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
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
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
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
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
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
2016DE29 Phys.Rev. C 94, 054311 (2016) D.M.Debenham, M.A.Bentley, P.J.Davies, T.Haylett, D.G.Jenkins, P.Joshi, L.F.Sinclair, R.Wadsworth, P.Ruotsalainen, J.Henderson, K.Kaneko, K.Auranen, H.Badran, T.Grahn, P.Greenlees, A.Herzaan, U.Jakobsson, J.Konki, R.Julin, S.Juutinen, M.Leino, J.Sorri, J.Pakarinen, P.Papadakis, P.Peura, J.Partanen, P.Rahkila, M.Sandzelius, J.Saren, C.Scholey, S.Stolze, J.Uusitalo, H.M.David, G.de Angelis, W.Korten, G.Lotay, M.Mallaburn, E.Sahin Spectroscopy of 70Kr and isospin symmetry in the T=1 fpg shell nuclei NUCLEAR REACTIONS 40Ca(32S, 2n), E=88 MeV; measured Eγ, (recoil)βγ-correlated events, half-life of 70Kr decay using JUROGAM II array at K130 cyclotron facility in Jyvaskyla. Recoil-β tagging method. 70Kr; deduced levels, J, π, triplet energy differences (TED) and mirror energy differences (MED). Comparison with shell model calculations. Systematics of TED and MED in even A=66, 70, 74 and 78 fpg shell nuclei.
doi: 10.1103/PhysRevC.94.054311
2016MI02 Phys.Rev. C 93, 014306 (2016) A.J.Mitchell, C.J.Lister, E.A.McCutchan, M.Albers, A.D.Ayangeakaa, P.F.Bertone, M.P.Carpenter, C.J.Chiara, P.Chowdhury, J.A.Clark, P.Copp, H.M.David, A.Y.Deo, B.DiGiovine, N.D'Olympia, R.Dungan, R.D.Harding, J.Harker, S.S.Hota, R.V.F.Janssens, F.G.Kondev, S.H.Liu, A.V.Ramayya, J.Rissanen, G.Savard, D.Seweryniak, R.Shearman, A.A.Sonzogni, S.L.Tabor, W.B.Walters, E.Wang, S.Zhu ψ-soft 146Ba and the role of nonaxial shapes at N ≈ 90 RADIOACTIVITY 146Cs(β-)[from 252Cf SF and mass separation at CARIBU-ANL facility]; measured Eγ, Iγ, βγ-, βγγ-coin using SATURN detection system at ANL. 146Ba; deduced levels, J, π, limits of β- branching ratios. Level systematics in even-A N=90 isotones with Z=56-68, and those of g.s., β- and γ-bands in 146Ba, 148Ce, 150Nd. Investigation of nuclear shape transitions. Comparison with interacting boson approximation (IBA) model predictions.
doi: 10.1103/PhysRevC.93.014306
2016RE15 Phys.Rev. C 94, 034309 (2016) W.Reviol, D.G.Sarantites, J.M.Elson, J.E.Kinnison, A.Gargano, S.Bottoni, R.V.F.Janssens, J.M.Allmond, A.D.Ayangeakaa, M.P.Carpenter, H.M.David, A.Galindo-Uribarri, N.Itaco, T.Lauritsen, E.Padilla-Rodal, S.Zhu One-neutron transfer study of 137Xe and systematics of 13/2+1 and 13/2+2 levels in N=83 nuclei NUCLEAR REACTIONS 13C(136Xe, 12C)137Xe, 9Be(136Xe, 8Be)137Xe, E=560 MeV; measured particle spectra, Eγ, Iγ, γ(θ), (particle)γ-, (particle)γγ-coin using Phoswich Wall and Digital Gammasphere arrays at ATLAS-ANL facility. 137Xe; deduced levels, J, π, multipolarity, relative yields. One-neutron transfer reactions. Comparison with systematics of first and second 13/2+ states in N=83 isotones, and with shell-model calculations. 135,137Xe, 137Cs, 139,140Ba, 142Ce; observed γ rays from contaminants.
doi: 10.1103/PhysRevC.94.034309
2015AY02 Phys.Rev. C 91, 044327 (2015) A.D.Ayangeakaa, S.Zhu, R.V.F.Janssens, M.P.Carpenter, M.Albers, M.Alcorta, T.Baugher, P.F.Bertone, 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, D.S.Moerland, C.Nair, A.M.Rogers, D.Seweryniak Role of the νg9/2 orbital in the development of collectivity in the A≈60 region: The case of 61Co NUCLEAR REACTIONS 26Mg(48Ca, 4np2α)61Co, E=275, 290, 320 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), centroid-shift Doppler-attenuation using FMA analyzer and GAMMASPHERE array at ATLAS-ANL facility. 61Co; deduced levels, J, π, multipolarity, bands, magnetic rotational dipole (shears) band, transition quadrupole moment and deformation parameter from DSA data, Nilsson configurations. Comparison with shell-model calculations using GXPF1A effective interaction in a modest-size pf space, and with structures of N=34 isotones 60Fe and 62Ni.
doi: 10.1103/PhysRevC.91.044327
2015CH25 Phys.Rev. C 91, 044309 (2015) C.J.Chiara, D.Weisshaar, R.V.F.Janssens, Y.Tsunoda, T.Otsuka, J.L.Harker, W.B.Walters, F.Recchia, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, A.Gade, C.R.Hoffman, M.Honma, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, N.Shimizu, S.R.Stroberg, S.Suchyta, Y.Utsuno, S.J.Williams, K.Wimmer, S.Zhu Identification of deformed intruder states in semi-magic 70Ni NUCLEAR REACTIONS 208Pb(70Zn, X)70Ni, E=440 MeV; measured Eγ, Iγ, prompt- and delayed-γ spectra, γγ-coin, γγ(θ) using Gammasphere array at ATLAS-ANL facility. 9Be(82Se, X)70Ni, E=140 MeV/nucleon; measured Eγ, Iγ, (70Ni)γ-, γγ-coin, prompt and delayed γ rays using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 70Ni; deduced levels, J, π. Comparison with Monte Carlo shell-model calculations. NUCLEAR STRUCTURE 68,70Ni, 92Mo; calculated levels, J, π, potential-energy surface contours in (Q2, Q4) plane. Shell-model using jj44bpn, jj44pna, JUN45, and JUN45 effective interactions, and Monte Carlo shell-model with A3DA interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.91.044309
2015DA12 Phys.Rev.Lett. 115, 132502 (2015) H.M.David, J.Chen, D.Seweryniak, F.G.Kondev, J.M.Gates, K.E.Gregorich, I.Ahmad, M.Albers, M.Alcorta, B.B.Back, B.Baartman, P.F.Bertone, L.A.Bernstein, C.M.Campbell, M.P.Carpenter, C.J.Chiara, R.M.Clark, M.Cromaz, D.T.Doherty, G.D.Dracoulis, N.E.Esker, P.Fallon, O.R.Gothe, J.P.Greene, P.T.Greenlees, D.J.Hartley, K.Hauschild, C.R.Hoffman, S.S.Hota, R.V.F.Janssens, T.L.Khoo, J.Konki, J.T.Kwarsick, T.Lauritsen, A.O.Macchiavelli, P.R.Mudder, C.Nair, Y.Qiu, J.Rissanen, A.M.Rogers, P.Ruotsalainen, G.Savard, S.Stolze, A.Wiens, S.Zhu Decay and Fission Hindrance of Two- and Four-Quasiparticle K Isomers in 254Rf NUCLEAR REACTIONS 206Pb(50Ti, 2n)254Rf, E=242.5 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced energy levels, J, π, isomer T1/2, unprecedented fission hindrance relative to the ground state. Comparison with multiquasiparticle calculations.
doi: 10.1103/PhysRevLett.115.132502
2015DO07 Phys.Rev. C 92, 035808 (2015) D.T.Doherty, P.J.Woods, D.Seweryniak, M.Albers, A.D.Ayangeakaa, M.P.Carpenter, C.J.Chiara, H.M.David, J.L.Harker, R.V.F.Janssens, A.Kankainen, C.Lederer, S.Zhu Structure of resonances in the Gamow burning window for the 25Al(p, γ)26Si reaction in novae NUCLEAR REACTIONS 24Mg(3He, n), E=10 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using Gammasphere array at ATLAS-ANL. 26Si; deduced levels, J, π, ΔJ, multipolarity, mirror assignments with levels in 26Mg. Comparison with sd-shell-model calculations. Relevance to 25Al(p, γ)26Si reaction of astrophysical interest, and Gamow burning window.
doi: 10.1103/PhysRevC.92.035808
2015PR10 Phys.Rev. C 92, 061302 (2015) C.J.Prokop, B.P.Crider, S.N.Liddick, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Chen, C.J.Chiara, H.M.David, A.C.Dombos, S.Go, 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 low-energy 0+ state and shape coexistence in 70Ni RADIOACTIVITY 70,70mCo(β-)[from 9Be(76Ge, X), E=130 MeV/nucleon using A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, βγγ-, γγ-coin, level half-life by βγ(t) using SeGA array and silicon PIN detectors. 70Ni; deduced levels, J, π, energy and half-life of excited (0+) state, configuration. Comparison with Monte Carlo shell-model calculations with A3DA interaction. 68Co, 69Ni, 70Zn; observed γ rays from decay of contaminants.
doi: 10.1103/PhysRevC.92.061302
2014DO04 Phys.Rev. C 89, 045804 (2014) D.T.Doherty, P.J.Woods, G.Lotay, D.Seweryniak, M.P.Carpenter, C.J.Chiara, H.M.David, R.V.F.Janssens, L.Trache, S.Zhu Level structure of 31S: From low excitation energies to the region of interest for hydrogen burning in novae through the 30(p, γ)31S reaction NUCLEAR REACTIONS 28Si(α, n), E=22 MeV; measured Eγ, Iγ, γγ-coin, γ(θ) using Gammasphere array at ATLAS-ANL facility. 31S; deduced levels, J, π, comparison with level structure in mirror nucleus 31P, mirror energy differences. Comparison with shell model calculations. Relevance for the 30P(p, γ)31S reaction in ONe novae environments.
doi: 10.1103/PhysRevC.89.045804
2013CH13 Acta Phys.Pol. B44, 371 (2013) C.J.Chiara, W.B.Walters, R.V.F.Janssens, R.Broda, M.Albers, M.Alcorta, P.F.Bertone, M.P.Carpenter, C.R.Hoffman, T.Lauritsen, A.M.Rogers, D.Seweryniak, S.Zhu, F.G.Kondev, B.Fornal, W.Krolas, J.Wrzesinski, N.Larson, S.N.Liddick, C.Prokop, S.Suchyta, H.M.David, D.T.Doherty Search for Intruder States in 68Ni and 67Co NUCLEAR REACTIONS 238U, 208Pb, 197Au(70Zn, X)68Ni/67Co, E=440 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced level scheme, J, π, lack of evidence for intruder states.
doi: 10.5506/APhysPolB.44.371
2013DA16 Phys.Lett. B 726, 665 (2013) H.M.David, P.J.Woods, G.Lotay, D.Seweryniak, M.Albers, M.Alcorta, M.P.Carpenter, C.J.Chiara, T.Davinson, D.T.Doherty, C.R.Hoffman, R.V.F.Janssens, T.Lauritsen, A.M.Rogers, S.Zhu Low-lying T = O states in the odd-odd N = Z nucleus 62Ga NUCLEAR REACTIONS 24Mg(40Ca, np)62Ga, E=103 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ; deduced low-lying level energies, J, π. Comparison with shell model and IBM-4 calculations.
doi: 10.1016/j.physletb.2013.09.054
2013RE18 Phys.Rev. C 88, 041302 (2013) F.Recchia, C.J.Chiara, R.V.F.Janssens, D.Weisshaar, A.Gade, W.B.Walters, M.Albers, M.Alcorta, V.M.Bader, T.Baugher, D.Bazin, J.S.Berryman, P.F.Bertone, B.A.Brown, C.M.Campbell, M.P.Carpenter, J.Chen, H.L.Crawford, H.M.David, D.T.Doherty, C.R.Hoffman, F.G.Kondev, A.Korichi, C.Langer, N.Larson, T.Lauritsen, S.N.Liddick, E.Lunderberg, A.O.Macchiavelli, S.Noji, C.Prokop, A.M.Rogers, D.Seweryniak, S.R.Stroberg, S.Suchyta, S.Williams, K.Wimmer, S.Zhu Configuration mixing and relative transition rates between low-spin states in 68Ni NUCLEAR REACTIONS 208Pb(70Zn, X)68Ni, E=440 MeV; measured Eγ, Iγ, (68Ni)γ-, γγ-coin, prompt and delayed γ rays, level half-life using Gammasphere array at ATLAS-ANL facility. 9Be(70Ni, X)68Ni, E=75 MeV/nucleon, [secondary 70Ni beam from 9Be(82Se, X), E=140 MeV/nucleon primary reaction]; measured Eγ, Iγ, γγ-coin, prompt and delayed γ rays, level half-life using S800 spectrograph, GRETINA and CsI(Na) arrays at NSCL-MSU facility. 68Ni; deduced levels, J, π, B(E2) ratios. Comparison with shell-model calculations using jj44pna, jj44b, JUN45, and LNPS effective interactions. Discussed configuration mixing.
doi: 10.1103/PhysRevC.88.041302
2012CH39 Phys.Rev. C 86, 041304 (2012) C.J.Chiara, R.Broda, W.B.Walters, R.V.F.Janssens, M.Albers, M.Alcorta, P.F.Bertone, M.P.Carpenter, C.R.Hoffman, T.Lauritsen, A.M.Rogers, D.Seweryniak, S.Zhu, F.G.Kondev, B.Fornal, W.Krolas, J.Wrzesinski, N.Larson, S.N.Liddick, C.Prokop, S.Suchyta, H.M.David, D.T.Doherty Low-spin states and the non-observation of a proposed 2202-keV, o+ isomer in 68Ni NUCLEAR REACTIONS 197Au, 208Pb, 238U(70Zn, X), E=430, 440 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, γγ(θ), prompt and delayed γ using Gammasphere array at ATLAS facility in ANL. 68Ni; deduced levels, J, π, T1/2, multipolarity and mixing ratio. Non-observation of a previously reported 0+ isomer in 68Ni.
doi: 10.1103/PhysRevC.86.041304
2012DO07 Phys.Rev.Lett. 108, 262502 (2012) D.T.Doherty, G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, C.J.Chiara, H.M.David, R.V.F.Janssens, L.Trache, S.Zhu Key Resonances in the 30P(p, γ)31S Gateway Reaction for the Production of Heavy Elements in ONe Novae NUCLEAR REACTIONS 28Si(α, n)31S, E=22 MeV; measured reaction products, Eγ, Iγ, γ-γ- and γ-γ-γ-coin.; deduced energy of excited states, resonances, J, π, reaction rate uncertainties. Astrophysical implications, comparison with available data.
doi: 10.1103/PhysRevLett.108.262502
2012WA15 Phys.Lett. B 712, 59 (2012) J.P.Wallace, P.J.Woods, G.Lotay, A.Alharbi, A.Banu, H.M.David, T.Davinson, M.McCleskey, B.T.Roeder, E.Simmons, A.Spiridon, L.Trache, R.E.Tribble β-Delayed proton-decay study of 20Mg and its implications for the 19Ne(p, γ)20Na breakout reaction in X-ray bursts RADIOACTIVITY 20Mg(β+p) [from 3He(20Ne, 3n)20Mg, E=25 MeV/nucleon]; measured decay products, Eβ, Iβ, Ep, Ip. 19Ne; deduced proton energy spectrum, resonant states, resonance strengths.
doi: 10.1016/j.physletb.2012.04.046
2011LO21 Phys.Rev. C 84, 035802 (2011); Pub Note Phys.Rev. C 84, 039901 (2011) G.Lotay, P.J.Woods, D.Seweryniak, M.P.Carpenter, H.M.David, R.V.F.Janssens, S.Zhu Identification of analog states in the T = 1/2 A = 27 mirror system from low excitation energies to the region of hydrogen burning in the 26Alg, m(p, γ)27Si reactions NUCLEAR REACTIONS 12C(16O, p), E=26 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), level half-lives by DSA method using Gammasphere array. 27Al; deduced levels, J, π, multipolarities, mirror energy differences. Comparison with shell-model calculations, and with level structure of 27Si mirror nucleus. Relevance to 26Al(p, γ)27Si and 26mAl(p, γ)27Si reactions for galactic abundance of the cosmic 26gAl, and for the excess abundance of 26Mg in presolar grains.
doi: 10.1103/PhysRevC.84.035802
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