NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.A.Clark Found 102 matches. Showing 1 to 100. [Next]2024LA01 Phys.Rev. C 109, 024309 (2024) S.Lalkovski, F.G.Kondev, K.Auranen, A.D.Ayangeakaa, M.P.Carpenter, J.A.Clark, P.Copp, N.P.Giha, D.J.Hartley, T.Lauritsen, S.Marley, G.E.Morgan, C.Muller-Gatermann, S.Nandi, W.Reviol, D.Santiago-Gonzalez, G.Savard, D.Seweryniak, Ir.B.Vasilev, J.Wu Structure of the high-spin, β-decaying state in the neutron-rich nucleus 146La
doi: 10.1103/PhysRevC.109.024309
2024LO02 Phys.Rev.Lett. 132, 142502 (2024) B.Longfellow, A.T.Gallant, G.H.Sargsyan, M.T.Burkey, T.Y.Hirsh, G.Savard, N.D.Scielzo, L.Varriano, M.Brodeur, D.P.Burdette, J.A.Clark, D.Lascar, K.D.Launey, P.Mueller, D.Ray, K.S.Sharma, A.A.Valverde, G.L.Wilson, X.L.Yan Improved Tensor Current Limit from 8B β Decay Including New Recoil-Order Calculations RADIOACTIVITY 8B(β+) [from 6Li(3He, n)8B, E not given]; measured decay products, Eα, Iα, Eβ, Iβ, α-α-β-coin.; deduced β-ν angular correlation coefficient impacted by 2+ intruder state, Gamow-Teller decays. Comparison with new ab initio symmetry-adapted no-core shell-model calculations, available data. The Beta-decay Paul Trap, Argonne National Laboratory, the ATLAS facility.
doi: 10.1103/PhysRevLett.132.142502
2024LO03 Nucl.Instrum.Methods Phys.Res. A1062, 169228 (2024) S.Lopez-Caceres, S.T.Marley, M.P.Carpenter, G.Savard, F.G.Kondev, P.Copp, W.Reviol, C.Muller-Gatermann, D.Seweryniak, J.A.Clark, D.Santiago-Gonzalez, G.E.Morgan, A.J.Mitchell, G.L.Wilson, M.L.Smith The LSU-Argonne conversion electron spectrometer: A new detector for the X-Array and SATURN decay station RADIOACTIVITY 150Ce, 150Pr(β-); measured decay products, Eβ, Iβ, X-rays; deduced T1/2 via conversion electrons emission. Comparison with available data. The LSU-Argonne Conversion Electron Spectrometer (LACES), the ATLAS/CARIBU facility at Argonne National Laboratory.
doi: 10.1016/j.nima.2024.169228
2023GA11 Phys.Rev.Lett. 130, 192502 (2023) A.T.Gallant, N.D.Scielzo, G.Savard, J.A.Clark, M.Brodeur, F.Buchinger, D.P.Burdette, M.T.Burkey, S.Caldwell, J.E.Crawford, A.Czeszumska, C.M.Deibel, J.Greene, D.Heslop, T.Y.Hirsh, A.F.Levand, B.Longfellow, G.E.Morgan, P.Mueller, R.Orford, S.Padgett, N.Paul, A.Perez Galvan, A.Reimer, R.Segel, K.S.Sharma, K.Siegl, L.Varriano, B.J.Zabransky Angular Correlations in the β Decay of 8B: First Tensor-Current Limits from a Mirror-Nucleus Pair RADIOACTIVITY 8B(β+); measured decay products, Eβ, Iβ; deduced the α-β-ν angular correlation in the Gamow-Teller β+ decay. The Beta-decay Paul Trap.
doi: 10.1103/PhysRevLett.130.192502
2023HA30 Phys.Rev. C 108, 024307 (2023) D.J.Hartley, F.G.Kondev, M.P.Carpenter, J.A.Clark, P.Copp, B.Kay, T.Lauritsen, G.Savard, D.Seweryniak, G.L.Wilson, J.Wu First b--decay spectroscopy study of 157Nd RADIOACTIVITY 157Nd(β-)[from 252Cf(SF)]; measured Eγ, Iγ, Eβ, Iβ, βγ-coin, βγγ-coin; deduced T1/2, logft, branchings, β-feedings. 157Pm; deduced levels, J, π, configurations. Systematics of relative energies of quasiproton orbitals observed in promethium, europium, and terbium N =90, 92, 94, and 96 nuclei - 151Pm, 153Pm, 155Pm, 157Pm, 153Eu, 155Pm, 157Pm, 159Pm, 155Tb, 157Tb, 159Tb, 161Tb. Separated A=157 beam from CARIBU source delivered to the SATURN moving tape collection system, which was surrounded by X-Array spectrometer comprised of 5 germanium clover detectors plastic scintillators.
doi: 10.1103/PhysRevC.108.024307
2023HO14 Phys.Rev.Lett. 131, 262701 (2023) D.E.M.Hoff, K.Kolos, G.W.Misch, D.Ray, B.Liu, A.A.Valverde, M.Brodeur, D.P.Burdette, N.Callahan, J.A.Clark, A.T.Gallant, F.G.Kondev, G.E.Morgan, M.R.Mumpower, R.Orford, W.S.Porter, F.Rivero, G.Savard, N.D.Scielzo, K.S.Sharma, K.Sieja, T.M.Sprouse, L.Varriano Direct Mass Measurements to Inform the Behavior of 128mSb in Nucleosynthetic Environments ATOMIC MASSES 128,128mSb; measured cyclotron frequencies; deduced mass excesses, isomer excitation energy. Comparison with AME2020, NUBASE2020, state-of-the-art shell model calculations using the GCN5082 interaction. The phase-imaging ion-cyclotron resonance (PI-ICR) technique with the Canadian Penning Trap (CPT) mass spectrometer at the Californium Rare Isotope Breeder Upgrade facility.
doi: 10.1103/PhysRevLett.131.262701
2023LO04 Phys.Rev. C 107, L032801 (2023) B.Longfellow, A.T.Gallant, T.Y.Hirsh, M.T.Burkey, G.Savard, N.D.Scielzo, L.Varriano, M.Brodeur, D.P.Burdette, J.A.Clark, D.Lascar, P.Mueller, D.Ray, K.S.Sharma, A.A.Valverde, G.L.Wilson, X.L.Yan Determination of the 8B neutrino energy spectrum using trapped ions RADIOACTIVITY 8B(β+) [from 3He(6Li, n)8B, E not given]; measured decay products, Eα, Iα, αα-coin, 8Be recoil energy; deduced 8Be final-state distribution (FSD) from 8B decay, neutrino energy spectra. Comparison to other experimental data. β-decay Paul trap (BPT) surrounded by double-sided silicon strip detectors (DSSDs) at ATLAS facility (ANL).
doi: 10.1103/PhysRevC.107.L032801
2023MU01 Phys.Rev. C 107, L011602 (2023) D.Mucher, A.Spyrou, M.Wiedeking, M.Guttormsen, A.C.Larsen, F.Zeiser, C.Harris, A.L.Richard, M.K.Smith, A.Gorgen, S.N.Liddick, S.Siem, H.C.Berg, J.A.Clark, P.A.DeYoung, A.C.Dombos, B.Greaves, L.Hicks, R.Kelmar, S.Lyons, J.Owens-Fryar, A.Palmisano, D.Santiago-Gonzalez, G.Savard, W.W.von Seeger Extracting model-independent nuclear level densities away from stability RADIOACTIVITY 76Ga(β-); analyzed experimental total absorption spectrum (TAS) data in 2016Do05: Phys. Rev. C 93, 064317. 76Ge; deduced γ-strength function (γSF), nuclear level density (NLD). Comparison to other experimental data and to γ-strength function in 74Ge. 88Br(β-); measured Eγ, Iγ, TAS spectrum using Summing NaI (SuN) detector at Argonne CARIBU facility. 88Kr; deduced γ-strength function (γSF), nuclear level density (NLD). Compared with other experimental data γ-strength functions for 86Kr and 87Kr. NLD results are compared to calculations done with 3 semi-microscopic models - HFB+Skyrme, HFB+Skyrme combinatorial, temperature-dependent HFB+Gogny. Combination of "shape" method with β-Oslo technique which allows extraction of NLD in model independent way. NUCLEAR REACTIONS 87Kr(n, γ), E<1 MeV; calculated σ(E) using newly obtained NLD. Values are given relative to calculated ones using current RIPL-3 recommended level densities.
doi: 10.1103/PhysRevC.107.L011602
2022BU16 Phys.Rev.Lett. 128, 202502 (2022) M.T.Burkey, G.Savard, A.T.Gallant, N.D.Scielzo, J.A.Clark, T.Y.Hirsh, L.Varriano, G.H.Sargsyan, K.D.Launey, M.Brodeur, D.P.Burdette, E.Heckmaier, K.Joerres, J.W.Klimes, K.Kolos, A.Laminack, K.G.Leach, A.F.Levand, B.Longfellow, B.Maass, S.T.Marley, G.E.Morgan, P.Mueller, R.Orford, S.W.Padgett, A.Perez Galvan, J.R.Pierce, D.Ray, R.Segel, K.Siegl, K.S.Sharma, B.S.Wang Improved Limit on Tensor Currents in the Weak Interaction from 8Li β Decay RADIOACTIVITY 8Li(β-); measured decay products, Eβ, Iβ; deduced tensor currents in the low-energy regime by examining the β-ν correlation of trapped 8Li ions with the Beta-decay Paul Trap. Comparison with the standard model prediction.
doi: 10.1103/PhysRevLett.128.202502
2022CH55 Phys.Rev. C 106, 064312 (2022) J.Chen, B.P.Kay, T.L.Tang, I.A.Tolstukhin, C.R.Hoffman, H.Li, P.Yin, X.Zhao, P.Maris, J.P.Vary, G.Li, J.L.Lou, M.L.Avila, Y.Ayyad, S.Bennett, D.Bazin, J.A.Clark, S.J.Freeman, H.Jayatissa, C.Muller-Gatermann, A.Munoz-Ramos, D.Santiago-Gonzalez, D.K.Sharp, A.H.Wuosmaa, C.X.Yuan Probing the quadrupole transition strength of 15C via deuteron inelastic scattering NUCLEAR REACTIONS 1H(15C, p), 2H(15C, d);E=7.1 MeV/nucleon; measured reaction products, Ep, Ip, deuteron spectrum; deduced elastic and inelastic scattering σ(θ). 15C; deduced B(E2), proton quadrupole matrix element, ratio of neutron and proton matrix elements, proton deformation length, core polarization parameters, neutron effective charge; calculated levels, J, π, B(E2), magnetic dipole moments. Comparison to data on 17O and other C isotopes. Ab initio no-core configuration interaction (NCCI) calculations with Daejeon16 interaction. HELIOS spectrometer at ATLAS in-flight facility (Argonne National Laboratory).
doi: 10.1103/PhysRevC.106.064312
2022GA27 Phys.Rev. C 106, 045503 (2022) N.D.Gamage, R.Sandler, F.Buchinger, J.A.Clark, D.Ray, R.Orford, W.S.Porter, M.Redshaw, G.Savard, K.S.Sharma, A.A.Valverde Precise Q-value measurements of 112, 113Ag and 115Cd with the Canadian Penning trap for evaluation of potential ultralow Q-value β decays RADIOACTIVITY 112,113Ag, 115Cd(β-); measured cyclotron frequency ratios of singly charged parent and daughter ions; deduced Q values of g.s to g.s decay, log ft, partial T1/2. On the basis of measured values and existing level schemes evaluated ultralow Q-values for potential decay branches to the excited states. Comparison to AME2020 evaluation. Canadian Penning trap mass spectrometer coupled to the californium rare isotope breeder upgrade (CARIBU) facility at ANL. Comparison to AME2020 evaluation. ATOMIC MASSES 112,113Ag, 115Cd; measured cyclotron frequency; deduced mass excesses. Comparison to AME2020 evaluation.
doi: 10.1103/PhysRevC.106.045503
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
2022OR02 Phys.Rev. C 105, L052802 (2022) R.Orford, N.Vassh, J.A.Clark, G.C.McLaughlin, M.R.Mumpower, D.Ray, G.Savard, R.Surman, F.Buchinger, D.P.Burdette, M.T.Burkey, D.A.Gorelov, J.W.Klimes, W.S.Porter, K.S.Sharma, A.A.Valverde, L.Varriano, X.L.Yan Searching for the origin of the rare-earth peak with precision mass measurements across Ce-Eu isotopic chains ATOMIC MASSES 152,153,154Ce, 152,153,154,156,157Pr, 157Nd, 161Pm, 163,165Eu; measured cyclotron frequency; deduced mass excess, solar abundances of rare-earth elements. Comparison to AME2016 and AME2020 evaluations, previous experimental data and calculations using Markov chain Monte Carlo (MCMC) technique. Canadian Penning Trap (CPT) with low-energy ion beams from the Californium Rare Isotope Breeder Upgrade(CARIBU) facility at Argonne National Laboratory. Systematics of CPT mass-measurements for Ce, Pr, Nd, Pm, Sm, Eu (Z=58-63).
doi: 10.1103/PhysRevC.105.L052802
2022SC17 J.Phys.(London) G49, 110502 (2022) H.Schatz, A.D.Becerril Reyes, A.Best, E.F.Brown, K.Chatziioannou, K.A.Chipps, C.M.Deibel, R.Ezzeddine, D.K.Galloway, C.J.Hansen, F.Herwig, A.P.Ji, M.Lugaro, Z.Meisel, D.Norman, J.S.Read, L.F.Roberts, A.Spyrou, I.Tews, F.X.Timmes, C.Travaglio, N.Vassh, C.Abia, P.Adsley, S.Agarwal, M.Aliotta, W.Aoki, A.Arcones, A.Aryan, A.Bandyopadhyay, A.Banu, D.W.Bardayan, J.Barnes, A.Bauswein, T.C.Beers, J.Bishop, T.Boztepe, B.Cote, M.E.Caplan, A.E.Champagne, J.A.Clark, M.Couder, A.Couture, S.E.de Mink, S.Debnath, R.J.deBoer, J.den Hartogh, P.Denissenkov, V.Dexheimer, I.Dillmann, J.E.Escher, M.A.Famiano, R.Farmer, R.Fisher, C.Frohlich, A.Frebel, C.Fryer, G.Fuller, A.K.Ganguly, S.Ghosh, B.K.Gibson, T.Gorda, K.N.Gourgouliatos, V.Graber, M.Gupta, W.C.Haxton, A.Heger, W.R.Hix, W.C.G.Ho, E.M.Holmbeck, A.A.Hood, S.Huth, G.Imbriani, R.G.Izzard, R.Jain, H.Jayatissa, Z.Johnston, T.Kajino, A.Kankainen, G.G.Kiss, A.Kwiatkowski, M.La Cognata, A.M.Laird, L.Lamia, P.Landry, E.Laplace, K.D.Launey, D.Leahy, G.Leckenby, A.Lennarz, B.Longfellow, A.E.Lovell, W.G.Lynch, S.M.Lyons, K.Maeda, E.Masha, C.Matei, J.Merc, B.Messer, F.Montes, A.Mukherjee, M.R.Mumpower, D.Neto, B.Nevins, W.G.Newton, L.Q.Nguyen, K.Nishikawa, N.Nishimura, F.M.Nunes, E.O'Connor, B.W.O'Shea, W.-J.Ong, S.D.Pain, M.A.Pajkos, M.Pignatari, R.G.Pizzone, V.M.Placco, T.Plewa, B.Pritychenko, A.Psaltis, D.Puentes, Y.-Z.Qian, D.Radice, D.Rapagnani, B.M.Rebeiro, R.Reifarth, A.L.Richard, N.Rijal, I.U.Roederer, J.S.Rojo, J.S K, Y.Saito, A.Schwenk, M.L.Sergi, R.S.Sidhu, A.Simon, T.Sivarani, A.Skuladottir, M.S.Smith, A.Spiridon, T.M.Sprouse, S.Starrfield, A.W.Steiner, F.Strieder, I.Sultana, R.Surman, T.Szucs, A.Tawfik, F.Thielemann, L.Trache, R.Trappitsch, M.B.Tsang, A.Tumino, S.Upadhyayula, J.O.Valle Martinez, M.Van der Swaelmen, C.Viscasillas Vazquez, A.Watts, B.Wehmeyer, M.Wiescher, C.Wrede, J.Yoon, R.G.T.Zegers, M.A.Zermane, M.Zingale, the Horizon 2020 Collaborations Horizons: nuclear astrophysics in the 2020s and beyond
doi: https://dx.doi.org/10.1088/1361-6471/ac8890
2022WA34 Phys.Rev. C 106, 044317 (2022) S.Waniganeththi, D.E.M.Hoff, A.M.Rogers, C.J.Lister, P.C.Bender, K.Brandenburg, K.Childers, J.A.Clark, A.C.Dombos, E.R.Doucet, S.Jin, R.Lewis, S.N.Liddick, Z.Meisel, C.Morse, H.Schatz, K.Schmidt, D.Soltesz, S.K.Subedi Establishing the ground-state spin of 71Kr RADIOACTIVITY 71Kr(EC), (β+), (β+p) [from 9Be(92Mo, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 fragment separator and a Radio Frequency Fragment Separator (RFFS) at the NSCL-MSU facility]; measured particle identification plot of implanted ions, Eγ, Iγ, E(p), I(p), (implants)β-coin, (implants)(β-delayed protons)-coin, (implants)γγ-coin, (implants)βγ-coin, T1/2 of decay of 71Kr; deduced absolute number of βγ-coin events, β events, absolute γ intensities, and intensities of β-delayed protons, logft for ground-state to ground-state superallowed β transition using SeGA array with 16 HPGe detectors for γ detection, and double-sided silicon-strip detector (DSSSDs) for particle detection. 71Kr; deduced Jπ and T1/2 of the ground state, decay branching ratios. 70Br; deduced T1/2 of the 0+ g.s. and 9+ isomer. 71Br, 70Se; deduced levels, J, π, β feedings, logft, I(p) feedings. Discussed structure of 71Kr and 71Br mirror nuclei. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.106.044317
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
2021KO09 Nucl.Instrum.Methods Phys.Res. A1000, 165240 (2021) K.Kolos, A.M.Hennessy, N.D.Scielzo, V.E.Iacob, J.C.Hardy, M.A.Stoyer, A.P.Tonchev, W.-J.Ong, M.T.Burkey, B.Champine, J.A.Clark, P.Copp, A.Gallant, E.B.Norman, R.Orford, H.I.Park, J.Rohrer, D.Santiago-Gonzalez, G.Savard, A.J.Shaka, B.S.Wang, S.Zhu New approach to precisely measure γ-ray intensities for long-lived fission products, with results for the decay of 95Zr RADIOACTIVITY 95Zr, 95Nb, 95Sr, 95Y(β-); measured decay products, Eγ, Iγ, Eβ, Iβ, β-γ-coin.; deduced γ-ray energies and intensities, β-branching ratios. Comparison with a Monte Carlo decay code simulations. CARIBU facility, the reactor facility at TAMU.
doi: 10.1016/j.nima.2021.165240
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
2021WI11 Nucl.Instrum.Methods Phys.Res. A1017, 165806 (2021) G.L.Wilson, T.S.Nagel, S.T.Marley, N.D.Scielzo, A.Aprahamian, J.A.Clark, A.Czeszumska, G.Savard, K.Siegl, B.S.Wang Reconstruction of β-delayed neutron energy spectra from recoil-ion spectroscopy of trapped ions RADIOACTIVITY 137I, 99Y, 135Sb(β-n); calculated neutron-energy spectrum and the probability of β-delayed neutron emission.
doi: 10.1016/j.nima.2021.165806
2020CZ01 Phys.Rev. C 101, 024312 (2020) A.Czeszumska, N.D.Scielzo, S.A.Caldwell, J.A.Clark, G.Savard, B.S.Wang, A.Aprahamian, M.T.Burkey, C.J.Chiara, J.Harker, A.F.Levand, S.T.Marley, G.Morgan, J.M.Munson, E.B.Norman, A.Nystrom, R.Orford, S.W.Padgett, A.Perez Galvan, K.S.Sharma, K.Siegl, S.Y.Strauss β-delayed neutron emission studies of 137,138I and 144,145Cs performed with trapped ions RADIOACTIVITY 137,138I, 144,145Cs(β-), (β-n)[252Cf(SF) CARIBU facility and mass scans of radioactive beams with the Canadian Penning Trap (CPT) mass spectrometer at Argonne National Laboratory]; measured recoil ions, Eβ, Eγ, (recoil ions)β- and βγ-coin using Beta-decay Paul Trap with two plastic-scintillator ΔE-E telescopes, two MCP detectors, and two HPGe detectors; deduced beta-delayed neutron spectra, beta-delayed neutron-emission probabilities (%β-n or Pn). Comparison with previous experimental results.
doi: 10.1103/PhysRevC.101.024312
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
2020HO05 Phys.Rev. C 101, 034309 (2020) A.M.Howard, S.J.Freeman, D.K.Sharp, T.Bloxham, J.A.Clark, C.M.Deibel, B.P.Kay, P.D.Parker, J.P.Schiffer, J.S.Thomas Neutron-hole strength in N=81 nuclei NUCLEAR REACTIONS 138Ba, 140Ce, 142Nd, 144Sm(p, d), E=23 MeV; 138Ba, 140Ce, 142Nd, 144Sm(3He, α), E=34 MeV; measured Ed, Id, Eα, Iα, σ(θ) using the Enge split-pole spectrograph and multi-wire gas proportional counter backed by plastic scintillator at the tandem Van de Graaff accelerator of Yale University. 137Ba, 139Ce, 141Nd, 143Sm; deduced levels, J, π, L-transfer, configurations, spectroscopic factors, proton occupancies, neutron hole strengths and centroids, summed strengths. DWBA analysis. Comparison with predictions of particle-vibration coupling calculations.
doi: 10.1103/PhysRevC.101.034309
2020HO06 Nature(London) 580, 52 (2020) D.E.M.Hoff, A.M.Rogers, S.M.Wang, P.C.Bender, K.Brandenburg, K.Childers, J.A.Clark, A.C.Dombos, E.R.Doucet, S.Jin, R.Lewis, S.N.Liddick, C.J.Lister, Z.Meisel, C.Morse, W.Nazarewicz, H.Schatz, K.Schmidt, D.Soltesz, S.K.Subedi, S.Waniganeththi Mirror-symmetry violation in bound nuclear ground states RADIOACTIVITY 73Sr(β+p), (β+), (EC) [from Be(92Mo, X), E=140 MeV/nucleon]; measured decay products, Eβ, Iβ, Ep, Ip; deduced T1/2, γ-ray energies, level scheme, J, π, branching ratios, isobaric-analogue state (IAS), log ft. Comparison with calculations, available data.
doi: 10.1038/s41586-020-2123-1
2020HO17 Phys.Rev. C 102, 045810 (2020) D.E.M.Hoff, A.M.Rogers, Z.Meisel, P.C.Bender, K.Brandenburg, K.Childers, J.A.Clark, A.C.Dombos, E.R.Doucet, S.Jin, R.Lewis, S.N.Liddick, C.J.Lister, C.Morse, H.Schatz, K.Schmidt, D.Soltesz, S.K.Subedi, S.M.Wang, S.Waniganeththi Influence of 73Rb on the ashes of accreting neutron stars RADIOACTIVITY 73Sr(β+), (β+p)[from 9Be(92Mo, X), E=140 MeV/nucleon, followed by the separation and purification of 73Sr beam by A1900 and radiofrequency fragment separators at NSCL-MSU, and implanted in double-sided silicon strip detector]; measured Ep, Ip. 73Rb; deduced energy of the isobaric analogue state (IAS), J, π, isospin, S(p), β++ϵ feedings and logft for transitions to the 3/2- g.s. and the IAS, influence of 73Rb S(p) on x-ray bursts, and impact on the products of the rp process. Bayesian analysis of beta-delayed proton spectrum. ATOMIC MASSES 73Rb, 73Sr; analyzed mass excesses by IMME analysis for A=73 isobars of 73Sr, 73Rb, 73Kr and 73Br; deduced mass excesses for 73Rb and 73Sr, and S(p) for 73Rb. Comparison with data in AME2016.
doi: 10.1103/PhysRevC.102.045810
2020OR02 Nucl.Instrum.Methods Phys.Res. B463, 491 (2020) R.Orford, J.A.Clark, G.Savard, A.Aprahamian, F.Buchinger, M.T.Burkey, D.A.Gorelov, J.W.Klimes, G.E.Morgan, A.Nystrom, W.S.Porter, D.Ray, K.S.Sharma Improving the measurement sensitivity of the Canadian Penning Trap mass spectrometer through PI-ICR ATOMIC MASSES 142I, 146La, 163Gd; measured frequencies; deduced mass excesses.
doi: 10.1016/j.nimb.2019.04.016
2020OR03 Phys.Rev. C 102, 011303 (2020) R.Orford, F.G.Kondev, G.Savard, J.A.Clark, W.S.Porter, D.Ray, F.Buchinger, M.T.Burkey, D.A.Gorelov, D.J.Hartley, J.W.Klimes, K.S.Sharma, A.A.Valverde, X.L.Yan Spin-trap isomers in deformed, odd-odd nuclei in the light rare-earth region near N=98 ATOMIC MASSES 156,156m,158,160,160mPm, 158,160,160m,162,162m,164Eu, 162,162m,164,164m,166Tb; measured cyclotron frequency using the Canadian Penning Trap mass spectrometer at the CARIBU-ANL facility; deduced mass excesses, isomer excitation energies, Kπ, Nilsson configurations. Radioactive nuclei were produced in spontaneous fission of 252Cf source, filtered by A/Q, and purified by a multireflection time-of-flight mass separator (MR-TOF). Comparison with multiquasiparticle blocking calculations.
doi: 10.1103/PhysRevC.102.011303
2020SA02 Nucl.Instrum.Methods Phys.Res. B463, 258 (2020) G.Savard, M.Brodeur, J.A.Clark, R.A.Knaack, A.A.Valverde The N=126 factory: A new facility to produce very heavy neutron-rich isotopes
doi: 10.1016/j.nimb.2019.05.024
2020SE16 Phys.Rev. C 102, 045806 (2020) K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.M.Deibel, J.Hendriks, D.Kahl, W.N.Lennard, P.D.Parker, D.Seiler, C.Wrede Level structure of 31S via 32S(p, d)31S NUCLEAR REACTIONS 32S(p, d)31S, E=34.5 MeV; measured E(d), I(d) and differential σ(θ) using Enge split-pole magnetic spectrograph at Wright Nuclear Structure Laboratory (WNSL) of Yale University. 31S; deduced levels, J, π. Comparison with results from other reactions, decay, and evaluated data in ENSDF. DWBA analysis of σ(θ) data. Relevance to reaction rates for 30P(p, γ)31S at the temperature range of 0.1 to 1.5 GK, with impact on explosive hydrogen burning in classical novae and type-I x-ray bursts.
doi: 10.1103/PhysRevC.102.045806
2020WA04 Phys.Rev. C 101, 025806 (2020) B.S.Wang, S.A.Caldwell, N.D.Scielzo, A.Czeszumska, J.A.Clark, G.Savard, A.Aprahamian, M.T.Burkey, C.J.Chiara, J.Harker, A.F.Levand, S.T.Marley, G.E.Morgan, J.M.Munson, E.B.Norman, A.Nystrom, R.Orford, S.W.Padgett, A.Perez Galvan, K.S.Sharma, K.Siegl, S.Y.Strauss β-delayed-neutron studies of 135,136Sb and 140I performed with trapped ions RADIOACTIVITY 135,136Sb, 140I(β-), (β-n) [from 252Cf(SF) CARIBU facility and mass scans of radioactive beams with the Canadian Penning Trap (CPT) mass spectrometer at Argonne National Laboratory]; measured recoil ions, Eβ, Eγ, (recoil ions)β- and βγ-coin using Beta-decay Paul Trap with two plastic-scintillator ΔE-E telescopes, two MCP detectors, and two HPGe detectors; deduced beta-delayed neutron spectra, beta-delayed neutron-emission probabilities (%β-n or Pn). Comparison with earlier experimental results.
doi: 10.1103/PhysRevC.101.025806
2019BU23 Hyperfine Interactions 240, 36 (2019) M.T.Burkey, G.Savard, A.Gallant, N.D.Scielzo, J.A.Clark, T.Y.Hirsh, D.P.Burdette, E.Heckmaier, J.Klimes, K.Kolos, S.T.Marley, G.E.Morgan, R.Orford, S.Padgett, J.Pierce, R.Segel, Ku.S.Sharma, L.Varriano, B.S.Wang Precision β - ν correlation measurements with the Beta-decay Paul Trap RADIOACTIVITY 8Li(β-); measured decay products, Eβ, Iβ; deduced correlations. Comparison with simulations.
doi: 10.1007/s10751-019-1580-0
2019HO18 J.Phys.(London) G46, 083001 (2019) C.J.Horowitz, A.Arcones, B.Cote, I.Dillmann, W.Nazarewicz, I.U.Roederer, H.Schatz, A.Aprahamian, D.Atanasov, A.Bauswein, T.C.Beers, J.Bliss, M.Brodeur, J.A.Clark, A.Frebel, F.Foucart, C.J.Hansen, O.Just, A.Kankainen, G.C.McLaughlin, J.M.Kelly, S.N.Liddick, D.M.Lee, J.Lippuner, D.Martin, J.Mendoza-Temis, B.D.Metzger, M.R.Mumpower, G.Perdikakis, J.Pereira, B.W.O'Shea, R.Reifarth, A.M.Rogers, D.M.Siegel, A.Spyrou, R.Surman, X.Tang, T.Uesaka, M.Wang r-process nucleosynthesis: connecting rare-isotope beam facilities with the cosmos
doi: 10.1088/1361-6471/ab0849
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
2018OR02 Phys.Rev.Lett. 120, 262702 (2018) R.Orford, N.Vassh, J.A.Clark, G.C.McLaughlin, M.R.Mumpower, G.Savard, R.Surman, A.Aprahamian, F.Buchinger, M.T.Burkey, D.A.Gorelov, T.Y.Hirsh, J.W.Klimes, G.E.Morgan, A.Nystrom, K.S.Sharma Precision Mass Measurements of Neutron-Rich Neodymium and Samarium Isotopes and Their Role in Understanding Rare-Earth Peak Formation ATOMIC MASSES 154,156,158,159,160Nd, 162,163,164Sm; measured cyclotron frequency ratios; deduced mass excess values. Comparison with AME16 evaluation.
doi: 10.1103/PhysRevLett.120.262702
2018SI07 Phys.Rev. C 97, 035504 (2018) K.Siegl, N.D.Scielzo, A.Czeszumska, J.A.Clark, G.Savard, A.Aprahamian, S.A.Caldwell, B.S.Alan, M.T.Burkey, C.J.Chiara, J.P.Greene, J.Harker, S.T.Marley, G.E.Morgan, J.M.Munson, E.B.Norman, R.Orford, S.Padgett, A.Perez Galvan, K.S.Sharma, S.Y.Strauss Recoil ions from the β decay of 134Sb confined in a Paul trap RADIOACTIVITY 134,134mSb(β-)[from 252Cf SF decay at CARIBU-ANL facility]; measured β, γ, singly-charged recoil ions, βγ-coin, β(ce)-coin, (recoils)β-coin, time-of-flight spectra for β(ion)-coin using Beta-decay Paul Trap (BPT); deduced charge-state distribution of the recoiling ions, mean electron loss, β-ν correlation coefficient (aβν), β-decay simulations, significant β-decay strength (17.2%) to high-lying excited states in 134Te to obtain an angular correlation consistent with expected value of unity for 0- to 0+ β transition. Comparison of the observed β-decay spectrum with that from the decay scheme in the ENSDF database or Nuclear Data Sheets for 134Sb g.s. decay. Comparison of mean atomic electron loss in 134Sb decay with that from the decays of noble gases 6He, 23Ne, 35Ar, 41Ar, 85Kr and 133Xe. 134,134mSb; half-lives used from literature and those determined at CARIBU-ANL facility (reference 23 in this work).
doi: 10.1103/PhysRevC.97.035504
2018SI28 Phys.Rev. C 98, 054307 (2018) K.Siegl, K.Kolos, N.D.Scielzo, A.Aprahamian, G.Savard, M.T.Burkey, M.P.Carpenter, P.Chowdhury, J.A.Clark, P.Copp, G.J.Lane, C.J.Lister, S.T.Marley, E.A.McCutchan, A.J.Mitchell, J.Rohrer, M.L.Smith, S.Zhu Β-decay half-lives of 134, 134mSb and their isomeric yield ratio produced by the spontaneous fission of 252Cf RADIOACTIVITY 134m,134Sb(β-)[from 252Cf(SF), mass separated high-intensity beams]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin, half-lives of decays of 134Sb and 134mSb, and isomeric yield ratios from 252Cf(SF) using the Scintillator And Tape Using Radioactive Nuclei (SATURN) system for β- detection, and X-Array for γ detection at the CARIBU facility of ANL. Systematics of isomeric yield ratios of 128,130,134Sb, 131,133Te, 132,134,136I, 135Xe, 138Cs from 252Cf(SF). Comparison with previous experimental values.
doi: 10.1103/PhysRevC.98.054307
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
2017BA10 Acta Phys.Pol. B48, 651 (2017) A.Bauswein, R.A.Pulpillo, J.A.Clark, O.Just, S.Goriely, H.-T.Janka, N.Stergioulas Neutron-star Mergers and Nuclear Physics
doi: 10.5506/APhysPolB.48.651
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
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
2016EN04 Phys.Rev. C 93, 064312 (2016) J.P.Entwisle, B.P.Kay, A.Tamii, S.Adachi, N.Aoi, J.A.Clark, S.J.Freeman, H.Fujita, Y.Fujita, T.Furuno, T.Hashimoto, C.R.Hoffman, E.Ideguchi, T.Ito, C.Iwamoto, T.Kawabata, B.Liu, M.Miura, H.J.Ong, J.P.Schiffer, D.K.Sharp, G.Susoy, T.Suzuki, S.V.Szwec, M.Takaki, M.Tsumura, T.Yamamoto Change of nuclear configurations in the neutrinoless double-β decay of 130Te → 130Xe and 136Xe → 136Ba NUCLEAR REACTIONS 128,130Te, 130,132,134,136Xe, 136,138Ba(d, 3He), E=101 MeV; measured Ed, Id, σ(θ) using Grand Raiden (GR) spectrometer at RCNP-Osaka cyclotron facility. 127,129Sb, 129,131,133,135I, 135,137Cs; deduced levels, L-transfers, spectroscopic factors. DWBA and optical model analysis. 128,130Te, 130,132,134,136Xe, 136,138Ba; deduced ground state proton occupancies. Comparison with shell-model and interacting boson-model calculations. RADIOACTIVITY 130Te, 136Xe(2β-); deduced change in the configuration of valence protons between the initial and final states in the 0νββ decay mode from measurements of the cross sections in (d, 3He) reaction, nuclear matrix elements.
doi: 10.1103/PhysRevC.93.064312
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
2016MU06 Phys.Rev. C 93, 065803 (2016) M.Munch, M.Alcorta, H.O.U.Fynbo, M.Albers, S.Almaraz-Calderon, M.L.Avila, A.D.Ayangeakaa, B.B.Back, P.F.Bertone, P.F.F.Carnelli, M.P.Carpenter, C.J.Chiara, J.A.Clark, B.DiGiovine, J.P.Greene, J.L.Harker, C.R.Hoffman, N.J.Hubbard, C.L.Jiang, O.S.Kirsebom, T.Lauritsen, K.L.Laursen, S.T.Marley, C.Nair, O.Nusair, D.Santiago-Gonzalez, J.Sethi, D.Seweryniak, R.Talwar, C.Ugalde, S.Zhu Independent measurement of the Hoyle state β feeding from 12B using Gammasphere RADIOACTIVITY 12B(β-)[from 2H(11B, p), E=40 MeV from ATLAS-ANL facility]; measured Eγ, Iγ, γγ-coin, γγ(θ) for the Hoyle state using Gammasphere array. 12C; deduced first excited 2+ and 0+ levels, β branching ratio to the Hoyle state in 12C, logft, indication of higher clustering for the Hoyle state as compared to previous results. Comparison with theoretical calculations using antisymmetrized molecular dynamics (AMD), and with previous experimental results.
doi: 10.1103/PhysRevC.93.065803
2015ST15 Phys.Rev.Lett. 115, 182501 (2015) M.G.Sternberg, R.Segel, N.D.Scielzo, G.Savard, J.A.Clark, P.F.Bertone, F.Buchinger, M.Burkey, S.Caldwell, A.Chaudhuri, J.E.Crawford, C.M.Deibel, J.Greene, S.Gulick, D.Lascar, A.F.Levand, G.Li, A.Perez Galvan, K.S.Sharma, J.Van Schelt, R.M.Yee, B.J.Zabransky Limit on Tensor Currents from 8Li β Decay RADIOACTIVITY 8Li(β-) [from 7Li(d, p), E not given]; measured decay products, Eβ, Iβ, Eα, Iα. 6He; deduced β-ν-α correlations. Comparison with available data.
doi: 10.1103/PhysRevLett.115.182501
2014RO14 Nucl.Data Sheets 120, 41 (2014) A.M.Rogers, J.Giovinazzo, C.J.Lister, B.Blank, G.Canchel, J.A.Clark, G.de France, S.Grevy, S.Gros, E.A.McCutchan, F.de Oliveira Santos, G.Savard, D.Seweryniak, I.Stefan, J.-C.Thomas β-Decay in the Region of Neutron-deficient 69, 70, 71Kr RADIOACTIVITY 65Se, 69Kr(EC), (β+p) [from Ni(78Kr, X), E=70 MeV/nucleon]; measured decay products, Eγ, Iγ. 59Zn, 61,62Ga, 62,63Ge, 64,65,66As, 66,67Se, 70Br, 70,71Kr; deduced T1/2.
doi: 10.1016/j.nds.2014.07.001
2014SC11 Nucl.Data Sheets 120, 70 (2014) N.D.Scielzo, R.M.Yee, P.F.Bertone, F.Buchinger, S.A.Caldwell, J.A.Clark, A.Czeszumska, C.M.Deibel, J.P.Greene, S.Gulick, D.Lascar, A.F.Levand, G.Li, E.B.Norman, S.Padgett, M.Pedretti, A.Perez Galvan, G.Savard, R.E.Segel, K.S.Sharma, M.G.Sternberg, J.Van Schelt, B.J.Zabransky A Novel Approach to β-delayed Neutron Spectroscopy Using the Beta-decay Paul Trap RADIOACTIVITY 137I(β-); measured decay products, Eβ, Iβ.; deduced neutron energy spectrum and branching ratio. Comparison with available data.
doi: 10.1016/j.nds.2014.07.009
2013FA10 Phys.Rev. C 88, 045801 (2013) J.Fallis, A.Parikh, P.F.Bertone, S.Bishop, L.Buchmann, A.A.Chen, G.Christian, J.A.Clark, J.M.D'Auria, B.Davids, C.M.Deibel, B.R.Fulton, U.Greife, B.Guo, U.Hager, C.Herlitzius, D.A.Hutcheon, J.Jose, A.M.Laird, E.T.Li, Z.H.Li, G.Lian, W.P.Liu, L.Martin, K.Nelson, D.Ottewell, P.D.Parker, S.Reeve, A.Rojas, C.Ruiz, K.Setoodehnia, S.Sjue, C.Vockenhuber, Y.B.Wang, C.Wrede Constraining nova observables: Direct measurements of resonance strengths in 33S(p, γ)34Cl NUCLEAR REACTIONS 1H(33S, γ)34Cl, E=194-514 MeV/nucleon; measured particle spectra, time-of-flight using DRAGON at ISAC-TRIUMF facility. 34Cl; deduced levels, resonances, resonance strengths, thermonuclear reaction rates for 33S(p, γ)34Cl reaction at T9=0.15-0.40, composition of 32,33,34S, 35,37Cl, 36,38Ar, 38,39K, 40Ca in oxygen-neon nova ejecta. Implications for nova nucleosynthesis.
doi: 10.1103/PhysRevC.88.045801
2013IR02 Phys.Rev. C 88, 055803 (2013) D.Irvine, A.A.Chen, A.Parikh, K.Setoodehnia, T.Faestermann, R.Hertenberger, H.-F.Wirth, V.Bildstein, S.Bishop, J.A.Clark, C.M.Deibel, J.Hendriks, C.Herlitzius, R.Krucken, W.N.Lennard, O.Lepyoshkina, R.Longland, G.Rugel, D.Seiler, K.Straub, C.Wrede Evidence for the existence of the astrophysically important 6.40-MeV state of 31S NUCLEAR REACTIONS 32S(d, t), E=24 MeV; measured E(t), I(t), σ(θ), using Q3D spectrograph at MLL-Garching facility. 31S; deduced levels, J, π, 31S and 31P mirror assignments. 30P(p, γ)31S; discussed impact on thermonuclear reaction rate in explosive hydrogen burning in classical novae. Comparison of 31S level structure with previous experimental results and evaluated data.
doi: 10.1103/PhysRevC.88.055803
2013KA04 Phys.Rev. C 87, 011302 (2013) B.P.Kay, T.Bloxham, S.A.McAllister, J.A.Clark, C.M.Deibel, S.J.Freedman, S.J.Freeman, K.Han, A.M.Howard, A.J.Mitchell, P.D.Parker, J.P.Schiffer, D.K.Sharp, J.S.Thomas Valence neutron properties relevant to the neutrinoless double-β decay of 130Te NUCLEAR REACTIONS 128,130Te(p, d), E=23 MeV; 128,130Te, 130,132Xe(d, p), E=15 MeV; 128,130Te, 130,132Xe(α, 3He), E=50 MeV; 130Te(3He, α), E=40 MeV; 132Xe(p, t), E=23 MeV; measured deuteron, proton, triton, 3He, α spectra, σ(θ) using Enge-split pole magnetic spectrograph at Yale Tandem accelerator facility. 127,129,131Te, 130,131,133Xe; deduced levels, J, π, L-transfers. 128,130Te, 130,132Xe; deduced neutron vacancies for active orbitals. Comparison with calculations within both the quasiparticle random-phase approximation and shell-model frameworks. Discussed relevance to neutrinoless double β decay of 130Te.
doi: 10.1103/PhysRevC.87.011302
2013KA14 Acta Phys.Pol. B44, 349 (2013) B.P.Kay, M.Alcorta, B.B.Back, S.Bedoor, P.F.Bertone, S.I.Baker, J.A.Clark, C.M.Deibel, B.J.DiGiovine, S.J.Freeman, C.R.Hoffman, H.Y.Lee, J.C.Lighthall, A.Macchiavelli, S.T.Marley, P.Muller, R.Pardo, K.E.Rehm, A.Rojas, A.M.Rogers, J.Rohrer, D.Santiago-Gonzalez, J.P.Schiffer, D.K.Sharp, D.V.Shetty, J.S.Thomas, I.Wiedenhover, A.H.Wuosmaa Transfer Reactions and the Structure of Neutron-rich Nuclei
doi: 10.5506/APhysPolB.44.349
2013LI12 Phys.Rev.Lett. 110, 092502 (2013) G.Li, R.Segel, N.D.Scielzo, P.F.Bertone, F.Buchinger, S.Caldwell, A.Chaudhuri, J.A.Clark, J.E.Crawford, C.M.Deibel, J.Fallis, S.Gulick, G.Gwinner, D.Lascar, A.F.Levand, M.Pedretti, G.Savard, K.S.Sharma, M.G.Sternberg, T.Sun, J.Van Schelt, R.M.Yee, B.J.Zabransky Tensor Interaction Limit Derived From the α-β-ν(bar) Correlation in Trapped 8Li Ions RADIOACTIVITY 8Li(β-) [from 7Li(d, p), E=24 MeV]; measured decay products, Eα, Iα; deduced α-β-ν correlation in the Gamow-Teller decay, limit on tensor component contribution.
doi: 10.1103/PhysRevLett.110.092502
2013SC06 Phys.Rev. C 87, 034306 (2013) J.P.Schiffer, C.R.Hoffman, B.P.Kay, J.A.Clark, C.M.Deibel, S.J.Freeman, M.Honma, A.M.Howard, A.J.Mitchell, T.Otsuka, P.D.Parker, D.K.Sharp, J.S.Thomas Valence nucleon populations in the Ni isotopes NUCLEAR REACTIONS 58,60,62,64Ni(d, p), E=10 MeV; 58,60,62,64Ni(α, 3He), (α, t), E=38 MeV; 58,60,62,64Ni(p, d), E=28 MeV; 58,60,62,64Ni(3He, d), E=18 MeV; 58,60,62,64Ni(3He, α), E=25 MeV; measured proton, deuteron, triton, 3He, α spectra, σ(θ) using Enge-split pole magnetic spectrograph at Yale tandem accelerator facility. 57,59,61,63,65Ni, 59,61,63,65Cu; deduced levels, J, π, l-transfers, spectroscopic factors. DWBA analysis. 58,60,62,64Ni; deduced neutron occupancies, proton vacancies, energy centroids of the neutron, neutron-hole, and proton single-particle excitations. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.87.034306
2013SE08 Phys.Rev. C 87, 065801 (2013) K.Setoodehnia, A.A.Chen, D.Kahl, T.Komatsubara, J.Jose, R.Longland, Y.Abe, D.N.Binh, J.Chen, S.Cherubini, J.A.Clark, C.M.Deibel, S.Fukuoka, T.Hashimoto, T.Hayakawa, J.Hendriks, Y.Ishibashi, Y.Ito, S.Kubono, W.N.Lennard, T.Moriguchi, D.Nagae, R.Nishikiori, T.Niwa, A.Ozawa, P.D.Parker, D.Seiler, T.Shizuma, H.Suzuki, C.Wrede, H.Yamaguchi, T.Yuasa Nuclear structure of 30S and its implications for nucleosynthesis in classical novae NUCLEAR REACTIONS 32S(p, t), E=34.5 MeV; measured triton spectra, σ(θ) using Enge split-pole magnetic spectrograph at WNSL, Yale facility. 28Si(3He, n), E=9 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO) at UTTAC facility. 30S; deduced levels, resonances, J, π, multipolarity, σ/J, mixing ratio, branching ratios, proton and gamma widths, resonance strengths. DWBA and coupled reaction channel analyses of σ(θ) data in (p, t). 29P(p, γ)30S, at T=0.01-1.5 GK; deduced astrophysical reaction rates, nova isotopic abundances of Si to Ca mass region isotopes using 1D hydrodynamic model.
doi: 10.1103/PhysRevC.87.065801
2013SH02 Phys.Rev. C 87, 014312 (2013) D.K.Sharp, B.P.Kay, J.S.Thomas, S.J.Freeman, J.P.Schiffer, B.B.Back, S.Bedoor, T.Bloxham, J.A.Clark, C.M.Deibel, C.R.Hoffman, A.M.Howard, J.C.Lighthall, S.T.Marley, A.J.Mitchell, T.Otsuka, P.D.Parker, K.E.Rehm, D.V.Shetty, A.H.Wuosmaa Neutron single-particle strength outside the N=50 core NUCLEAR REACTIONS 88Sr, 90Zr, 92Mo(d, p), E=15 MeV; 88Sr, 90Zr, 92Mo(α, 3He), E=50 MeV; measured proton and 3He spectra, σ(θ) using Enge-split pole magnetic spectrograph at Yale. 2H(86Kr, p), E=10 MeV/nucleon; measured proton spectra, σ(θ) using HELIOS spectrometer at ANL. 87Kr, 89Sr, 91Zr, 93Mo; deduced levels, J, π, absolute σ, L-transfers, spectroscopic factors, centroids of single-particle strengths. DWBA analysis.
doi: 10.1103/PhysRevC.87.014312
2013VA12 Phys.Rev.Lett. 111, 061102 (2013) J.Van Schelt, D.Lascar, G.Savard, J.A.Clark, P.F.Bertone, S.Caldwell, A.Chaudhuri, A.F.Levand, G.Li, G.E.Morgan, R.Orford, R.E.Segel, K.S.Sharma, M.G.Sternberg First Results from the CARIBU Facility: Mass Measurements on the r-Process Path ATOMIC MASSES 130,131In, 130,131,132,133,134,135Sn, 131,132,133,134,135,136,137Sb, 133,135,136,137,138,139,140Te, 133,134,135,139,140,141I, 142,143,144,145,146Cs; measured TOF ion cyclotron resonances, cyclotron frequency; deduced mass excess. Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.111.061102
2013YE02 Phys.Rev.Lett. 110, 092501 (2013) R.M.Yee, N.D.Scielzo, P.F.Bertone, F.Buchinger, S.Caldwell, J.A.Clark, C.M.Deibel, J.Fallis, J.P.Greene, S.Gulick, D.Lascar, A.F.Levand, G.Li, E.B.Norman, M.Pedretti, G.Savard, R.E.Segel, K.S.Sharma, M.G.Sternberg, J.Van Schelt, B.J.Zabransky β-Delayed Neutron Spectroscopy Using Trapped Radioactive Ions RADIOACTIVITY 137I(β-n) [from 252Cf(SF)];measured decay products, TOF, Eβ, Iβ, Eγ, Iγ, En, In; deduced βn branching ratios. Linear Paul trap.
doi: 10.1103/PhysRevLett.110.092501
2012HO11 Phys.Rev. C 85, 054318 (2012) C.R.Hoffman, B.B.Back, B.P.Kay, J.P.Schiffer, M.Alcorta, S.I.Baker, S.Bedoor, P.F.Bertone, J.A.Clark, C.M.Deibel, B.DiGiovine, S.J.Freeman, J.P.Greene, J.C.Lighthall, S.T.Marley, R.C.Pardo, K.E.Rehm, A.Rojas, D.Santiago-Gonzalez, D.K.Sharp, D.V.Shetty, J.S.Thomas, I.Wiedenhover, A.H.Wuosmaa Experimental study of the 19O(d, p)20O reaction in inverse kinematics NUCLEAR REACTIONS 2H(19O, p), [19O secondary beam from 2H(18O, 19O), E=8.06 MeV/nucleon primary reaction], E=6.61 MeV/nucleon; measured E(p), I(p), 19,20O spectra, (recoils)p-coin, energy loss, cross sections, proton yields, σ(θ) using HELIOS spectrometer at Atlas facility. 20O; deduced levels, L-transfers, J, π, spectroscopic factors, T=1 diagonal two-body matrix elements. DWBA analysis. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.85.054318
2012HO26 J.Phys.:Conf.Ser. 381, 012098 (2012) A.M.Howard, S.J.Freeman, J.P.Schiffer, T.Bloxham, J.A.Clark, C.M.Deibel, B.P.Kay, P.D.Parker, D.K.Sharp, J.S.Thomas Neutron-hole strength in the N = 81 isotone NUCLEAR REACTIONS 138Ba, 140Ce, 142Nd, 144Sm(p, d), E=23 MeV;138Ba, 140Ce, 142Nd, 144Sm(3He, α), E=34 MeV; measured light reaction products E(particle), I(particle, θ) using Enge split-pole spectrograph, position-sensitive IC and scintillator; deduced σ(θ), spectroscopic strength for specified angular momentum transfers, single-particle binding energy.
doi: 10.1088/1742-6596/381/1/012098
2012KA44 J.Phys.:Conf.Ser. 381, 012095 (2012) B.P.Kay, M.Alcorta, B.B.Back, S.I.Baker, S.Bedoor, T.Bloxham, J.A.Clark, C.M.Deibel, S.J.Freeman, C.R.Hoffman, A.M.Howard, J.C.Lighthall, S.T.Marley, A.J.Mitchell, K.E.Rehm, J.P.Schiffer, D.K.Sharp, D.V.Shetty, J.S.Thomas, A.H.Wuosmaa, S.Zhu HELIOS - progress and possibilities
doi: 10.1088/1742-6596/381/1/012095
2012MI26 J.Phys.:Conf.Ser. 381, 012099 (2012) A.J.Mitchell, S.J.Freeman, J.P.Schiffer, J.A.Clark, C.M.Deibel, C.R.Hoffman, A.M.Howard, B.P.Kay, P.D.Parker, D.K.Sharp, J.S.Thomas Investigating trends in proton single-particle states in Z = 51 isotopes using transfer reactions NUCLEAR REACTIONS 112,114,116,118,120,122,124Sn(α, t), E=37.5 MeV;112,114,116,118,120,122,124Sn(3He, d), E=25 MeV; measured E(particle), I(particle, θ) using Enge split-pole spectrometer; calculated σ(θ) using DWBA; deduced spectroscopic factors, σ(θ) for specified l-transfer, occupancies of neutron orbitals. Occupation of h11/2 increases rapidly with N. Preliminary.
doi: 10.1088/1742-6596/381/1/012099
2012SC01 Phys.Rev.Lett. 108, 022501 (2012) J.P.Schiffer, C.R.Hoffman, B.P.Kay, J.A.Clark, C.M.Deibel, S.J.Freeman, A.M.Howard, A.J.Mitchell, P.D.Parker, D.K.Sharp, J.S.Thomas Test of Sum Rules in Nucleon Transfer Reactions NUCLEAR STRUCTURE 58,60,62,64Ni; calculated spectroscopic factors for neutron transfer, valence-orbit occupancies. Macfarlane-French sum rules. NUCLEAR REACTIONS Ni(α, α), E=9 MeV; Ni(d, p), E=10 MeV; Ni(p, d), E=28 MeV; Ni(3He, d), E=18 MeV; Ni(α, t), E=38 MeV; measured reaction products. 58,60,62,64Ni; deduced spectroscopic factors, neutron occupancies. DWBA calculations.
doi: 10.1103/PhysRevLett.108.022501
2012SC09 Nucl.Instrum.Methods Phys.Res. A681, 94 (2012) N.D.Scielzo, G.Li, M.G.Sternberg, G.Savard, P.F.Bertone, F.Buchinger, S.Caldwell, J.A.Clark, J.Crawford, C.M.Deibel, J.Fallis, J.P.Greene, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, M.Pedretti, R.E.Segel, H.Sharma, K.S.Sharma, I.Tanihata, J.Van Schelt, R.M.Yee, B.J.Zabransky The β-decay Paul trap: A radiofrequency-quadrupole ion trap for precision β-decay studies RADIOACTIVITY 8Li(β-), (α); measured decay products, Eβ, Iβ, Eα, Iα, nuclear recoils; deduced technique for the β-ν angular correlations.
doi: 10.1016/j.nima.2012.04.035
2012SH40 J.Phys.:Conf.Ser. 381, 012100 (2012) D.K.Sharp, B.P.Kay, S.J.Freeman, J.P.Schiffer, B.B.Back, T.Bloxham, J.A.Clark, C.M.Deibel, C.R.Hoffman, A.M.Howard, J.C.Lighthall, S.T.Marley, A.J.Mitchell, P.D.Parker, J.S.Thomas, A.H.Wuosmaa Trends in the g7/2 and h11/2 neutron single-particle energies in N = 51 isotones NUCLEAR REACTIONS 88Sr, 90Zr, 92Mo(d, p), E=15 MeV;88Sr, 90Zr, 92Mo(α, 3He), E=50 MeV; measured E(3He), I(3He, θ), Ep, Ip(θ) using Enge split-pole spectrometer; calculated σ(θ), spectroscopic factors using DWBA code PTOLEMY; deduced spectroscopic factors for specified l-transfers. 2H(86Kr, p), E=10 MeV/nucleon; measured Ep, Ip(θ) using HELIOS spectrometer; calculated σ(θ) using DWBA; deduced σ(θ).
doi: 10.1088/1742-6596/381/1/012100
2012VA02 Phys.Rev. C 85, 045805 (2012) J.Van Schelt, D.Lascar, G.Savard, J.A.Clark, S.Caldwell, A.Chaudhuri, J.Fallis, J.P.Greene, A.F.Levand, G.Li, K.S.Sharma, M.G.Sternberg, T.Sun, B.J.Zabransky Mass measurements near the r-process path using the Canadian Penning Trap mass spectrometer ATOMIC MASSES 133,134Sb, 134,135,136,137Te, 135,136,137,138,139I, 137,138,139,140,141Xe, 141,142Cs, 153,155Pr, 153,155,157Nd, 153,155,156,157,158,159Pm, 155,157,158,159,160,161Sm, 158,159,160,161Eu, 163Gd; measured cyclotron frequency ratios; deduced mass excess, atomic masses. Canadian Penning Trap mass spectrometer at ANL. Comparison with AME-2003 evaluation and theoretical mass models. Systematics of S(2n) values.
doi: 10.1103/PhysRevC.85.045805
2011CH66 J.Phys.:Conf.Ser. 312, 042009 (2011) A.Chaudhuri, P.F.Bertone, F.Buchinger, S.Caldwell, J.A.Clark, J.E.Crawford, C.M.Deibel, S.Gulick, D.Lascar, A.F.Levand, G.Li, G.Savard, R.E.Segel, K.S.Sharma, M.G.Sternberg, T.Sun, J.Van Schelt Studies of neutron-rich nuclei using the CPT mass spectrometer at CARIBU
doi: 10.1088/1742-6596/312/4/042009
2011FA10 Phys.Rev. C 84, 045807 (2011) J.Fallis, J.A.Clark, K.S.Sharma, G.Savard, F.Buchinger, S.Caldwell, A.Chaudhuri, J.E.Crawford, C.M.Deibel, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, G.Li, B.F.Lundgren, A.Parikh, S.Russell, M.Scholte-van de Vorst, N.D.Scielzo, R.E.Segel, H.Sharma, S.Sinha, M.G.Sternberg, T.Sun, I.Tanihata, J.Van Schelt, J.C.Wang, Y.Wang, C.Wrede, Z.Zhou Mass measurements of isotopes of Nb, Mo, Tc, Ru, and Rh along the Νp- and rp-process paths using the Canadian Penning trap mass spectrometer ATOMIC MASSES 87Nb, 87,90,91,92Mo, 90,91,92,93Tc, 90,91,92,93,94Ru, 92,93,94,95Rh; measured cyclotron frequency ratios using Canadian Penning trap mass spectrometer; deduced mass excesses. 88Tc; deduced S(p). Comparison with previous measurements and AME-2003. Z=42-47, A=87-96; analyzed systematics of S(2p) values. Z=42-45, N=45-52; analyzed systematics of S(2n) values. Z=42-45, A=87-95; analyzed systematics of S(p) values. 94mAg; discussed 2p decay mode of 21+ isomer. NUCLEAR REACTIONS 58Ni(40Ca, X)87Nb/87Mo/90Mo/92Mo/90Tc/90Tc/92Tc/93Tc/90Ru/91Ru/92Ru/93Ru/92Rh/93Rh/94Rh, E=185, 190, 200 MeV; 58Ni(36Ar, X)91Tc/91Ru, E=125 MeV; Ni(36Ar, X)90Mo/91Mo/90Tc/91Tc/92Tc/91Ru/92Ru, E=130, 150 MeV; Ni(40Ca, X)93Tc/93Ru/94Ru/94Rh/95Rh, E=170 MeV; measured yields at ATLAS facility.
doi: 10.1103/PhysRevC.84.045807
2011KA27 Phys.Rev. C 84, 024325 (2011) B.P.Kay, J.P.Schiffer, S.J.Freeman, C.R.Hoffman, B.B.Back, S.I.Baker, S.Bedoor, T.Bloxham, J.A.Clark, C.M.Deibel, A.M.Howard, J.C.Lighthall, S.T.Marley, K.E.Rehm, D.K.Sharp, D.V.Shetty, J.S.Thomas, A.H.Wuosmaa Single-neutron energies outside 136Xe NUCLEAR REACTIONS 2H(136Xe, p), E=10 MeV/nucleon; measured Ep, Ip, time of flight, absolute σ, σ(θ) using Helios spectrometer at the ATLAS facility at ANL. 137Xe; deduced levels, J, π, l-transfers, spectroscopic factors, configurations. DWBA analysis of σ(θ) distributions.
doi: 10.1103/PhysRevC.84.024325
2011KA48 J.Phys.:Conf.Ser. 312, 092034 (2011) B.P.Kay, J.P.Schiffer, S.J.Freeman, B.B.Back, S.Bedoor, S.I.Baker, T.Bloxham, J.A.Clark, C.M.Deibel, C.R.Hoffman, A.M.Howard, J.C.Lighthall, S.T.Marley, K.E.Rehm, D.K.Sharp, D.V.Shetty, J.S.Thomas, A.H.Wuosmaa Study of valence neutrons in 136Xe with HELIOS NUCLEAR REACTIONS 2H, C(136Xe, p), (136Xe, d), E=5, 10 MeV/nucleon; measured E(particle), I(particle, θ), A/Q ratio using position-sensitive Si detectors, ToF using radio-frequency of ATLAS facility; deduced σ(p, θ) for specified angular momentum transfer; calculated σ(θ) for specified angular momentum transfer using DWBA code PTOLEMY.
doi: 10.1088/1742-6596/312/9/092034
2011MA69 Phys.Rev. C 84, 055806 (2011) M.Matos, J.C.Blackmon, L.E.Linhardt, D.W.Bardayan, C.D.Nesaraja, J.A.Clark, C.M.Deibel, P.D.O'Malley, P.D.Parker Unbound states of 32Cl and the 31S(p, γ)32Cl reaction rate NUCLEAR REACTIONS 32S(3He, t), E=30 MeV; measured E(t), I(t), σ(θ), pt(θ). 32Cl; deduced levels, J, π, branching ratios for proton decay to 31S. 28Si(3He, t)28P, E=30 MeV; measured E(t), I(t); deduced levels. 31S(p, γ)32Cl; deduced reaction rates.
doi: 10.1103/PhysRevC.84.055806
2011PA14 Phys.Rev. C 83, 045806 (2011) A.Parikh, K.Wimmer, T.Faestermann, R.Hertenberger, J.Jose, R.Longland, H.-F.Wirth, V.Bildstein, S.Bishop, A.A.Chen, J.A.Clark, C.M.Deibel, C.Herlitzius, R.Krucken, D.Seiler, K.Straub, C.Wrede Improving the 30P(p, γ )31S rate in oxygen-neon novae: Constraints on Jπ values for proton-threshold states in 31S NUCLEAR REACTIONS 31P(3He, t), E=25 MeV; measured E(t), I(t), σ(θ). 31S; deduced levels, J, π. 30P(p, γ)31S; deduced astrophysical reaction rates. Finite-range DWBA analysis. Comparison with previous experimental reaction rates and Hauser-Feshbach statistical model estimates.
doi: 10.1103/PhysRevC.83.045806
2011PA40 Phys.Rev. C 84, 065808 (2011) A.Parikh, K.Wimmer, T.Faestermann, R.Hertenberger, H.-F.Wirth, A.A.Chen, J.A.Clark, C.M.Deibel, C.Herlitzius, R.Krucken, D.Seiler, K.Setoodehnia, K.Straub, C.Wrede Production of 26Al in stellar hydrogen-burning environments: Spectroscopic properties of states in 27Si NUCLEAR REACTIONS 28Si(3He, α), E=25 MeV; measured Eα, Iα, σ(θ) using Q3D magnetic spectrograph. 27Si; deduced levels, J, π, L-values, spectroscopic factors. Finite-range DWBA analysis. Comparison with previous measurements and with shell-model calculations using OXBASH code. 26Al(p, γ)27Si; discussed thermonuclear reaction rate.
doi: 10.1103/PhysRevC.84.065808
2011RO47 Phys.Rev. C 84, 051306 (2011) A.M.Rogers, J.Giovinazzo, C.J.Lister, B.Blank, G.Canchel, J.A.Clark, G.de France, S.Grevy, S.Gros, E.A.McCutchan, F.de Oliveira Santos, G.Savard, D.Seweryniak, I.Stefan, J.-C.Thomas 69Kr β-delayed proton emission: A Trojan horse for studying states in proton-unbound 69Br RADIOACTIVITY 69Kr, 65Se(β+p)[from Ni(78Kr, X), E=70 MeV/nucleon]; measured Eγ, Iγ, Eβ, (implants)βγ-coin, half-lives using LISE3 facility at GANIL. 64Ge, 65As, 68Se, 69Br; deduced levels, J, π, isospin, IAS, β feeding, log ft, Coulomb Displacement energy (CDE), Q value.
doi: 10.1103/PhysRevC.84.051306
2010BL06 Phys.Rev. C 82, 027308 (2010) T.Bloxham, B.P.Kay, J.P.Schiffer, J.A.Clark, C.M.Deibel, S.J.Freeman, S.J.Freedman, A.M.Howard, S.A.McAllister, P.D.Parker, D.K.Sharp, J.S.Thomas Pair correlations in the neutrinoless double-β decay candidate 130Te NUCLEAR REACTIONS 128,130Te(p, t), E=23 MeV; measured triton spectra, σ(θ). 126,128Te; deduced levels, L-transfers. Split-pole magnetic spectrograph and gas-filled focal plane detector. Comparison with data for 128,130Te(3He, n) reactions. Relevance to calculation of the matrix element for neutrinoless double-β decay of 130Te.
doi: 10.1103/PhysRevC.82.027308
2010SE07 Phys.Rev. C 82, 022801 (2010) K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.M.Deibel, S.D.Geraedts, D.Kahl, P.D.Parker, D.Seiler, C.Wrede Structure of 30S with 32S(p, t)30S and the thermonuclear 29P(p, γ)30S reaction rate NUCLEAR REACTIONS 32S(p, t), E=34.5 MeV; measured triton spectra. 30S; deduced level, J, π, γ widths, proton widths, resonance strengths; deduced astrophysical reaction rates for 29P(p, γ). 30Si, 30S; deduced mirror states.
doi: 10.1103/PhysRevC.82.022801
2010SE08 Nucl.Phys. A834, 205c (2010) K.Setoodehnia, A.-A.Chen, J.Chen, J.-A.Clark, C.Deibel, D.Kahl, W.-N.Lennard, P.-D.Parker, C.Wrede Study of astrophysically important resonant states in 30S using the 32S(p, t)30S reaction NUCLEAR REACTIONS 32S(p, t), E=33.5, 34.5 MeV; measured E(triton), I(triton), Eγ, Iγ, (triton)γ-coin. 30S deduced levels, J, π.
doi: 10.1016/j.nuclphysa.2009.12.041
2010SE22 J.Phys.:Conf.Ser. 202, 012042 (2010) K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.Deibel, D.Kahl, W.N.Lennard, P.D.Parker, C.Wrede Study of astrophysically important resonant states in 30S using the 32S(p, t)30S reaction NUCLEAR REACTIONS 32S(p, t)30S, E=33.5, 34.5 MeV; measured E(triton), I(triton, θ); deduced levels, J, π. J, π preliminary, not shown in the paper.
doi: 10.1088/1742-6596/202/1/012042
2010WR01 Phys.Rev. C 81, 055503 (2010) C.Wrede, J.A.Clark, C.M.Deibel, T.Faestermann, R.Hertenberger, A.Parikh, H.-F.Wirth, S.Bishop, A.A.Chen, K.Eppinger, A.Garcia, R.Krucken, O.Lepyoshkina, G.Rugel, K.Setoodehnia Toward precise QEC values for the superallowed 0+ → 0+ β decays of T=2 nuclides: The masses of 20Na, 24Al, 28P, and 32Cl NUCLEAR REACTIONS 20Ne, 24Mg, 28Si, 32S, 36Ar(3He, t), E=32 MeV; measured triton spectra using Q3D magnetic spectrograph; deduced levels, Q values, mass excesses. ATOMIC MASSES 20Na, 24Al, 28P, 32Cl; measured mass excesses using (3He, t) reaction. 36Ar(3He, t)36K used for calibration. Comparison with AME-2003.
doi: 10.1103/PhysRevC.81.055503
2010WR02 Phys.Rev. C 82, 035805 (2010) C.Wrede, J.A.Clark, C.M.Deibel, T.Faestermann, R.Hertenberger, A.Parikh, H.-F.Wirth, S.Bishop, A.A.Chen, K.Eppinger, B.M.Freeman, R.Krucken, O.Lepyoshkina, G.Rugel, K.Setoodehnia Properties of 20Na, 24Al, 28P, 32Cl, and 36K for studies of explosive hydrogen burning NUCLEAR REACTIONS 20Ne, 24Mg, 28Si, 32S, 36Ar(3He, t), E=32 MeV; measured E(t), I(t); deduced levels and resonances. 19Ne, 23Mg, 27Si, 31S, 35Ar(p, γ); deduced improved thermonuclear reaction rates. 36Cl, 36Ar, 36K; analyzed A=36, T=1 triplet states. Comparison with previous experiments.
doi: 10.1103/PhysRevC.82.035805
2009DE33 Phys.Rev. C 80, 035806 (2009) C.M.Deibel, J.A.Clark, R.Lewis, A.Parikh, P.D.Parker, C.Wrede Toward an experimentally determined 26Alm(p, γ)27Si reaction rate in ONe novae NUCLEAR REACTIONS 27Al(3He, t), E=25 MeV; 28Si(3He, α), E=17.5 MeV; measured Et, It, Eα, Iα, Ep, Ip, αp-coin, αp(θ). 27Si; deduced levels, angular momentum transfer, proton branching ratios from resonances. 26Al; deduced levels and feedings from proton decay of unbound states in 27Si. Deduced reaction rates for 26mAl(p, γ) reaction as a function of stellar temperature.
doi: 10.1103/PhysRevC.80.035806
2009KA06 Phys.Rev. C 79, 021301 (2009) B.P.Kay, J.P.Schiffer, S.J.Freeman, T.Adachi, J.A.Clark, C.M.Deibel, H.Fujita, Y.Fujita, P.Grabmayr, K.Hatanaka, D.Ishikawa, H.Matsubara, Y.Meada, H.Okamura, K.E.Rehm, Y.Sakemi, Y.Shimizu, H.Shimoda, K.Suda, Y.Tameshige, A.Tamii, C.Wrede Nuclear structure relevant to neutrinoless double β decay: The valence protons in 76Ge and 76Se NUCLEAR REACTIONS 74,76Ge, 76,78Se(d, 3He), (polarized d, 3He), E=80 MeV; measured 3He spectra, σ, angular distributions, vector analyzing powers. 74,76Ge, 76,78Se(3He, d), E=72 MeV; measured deuteron spectra, σ, angular distributions. 73,75Ga, 75,77As, 77,79Br; deduced levels, J, π, angular momentum transfers, spectroscopic factors. Comparison of angular distribution and polarization data with distorted wave Born approximation (DWBA) calculations. 76Ge, 76Se; deduced occupancies of valence proton orbitals in ground states. Comparison of occupancies of valence proton and neutron orbitals in ground states of 76Ge and 76Se with QRPA and shell-model calculations. Discussed implications for neutrinoless double β decay of 76Ge to 76Se.
doi: 10.1103/PhysRevC.79.021301
2009SC19 Phys.Rev. C 80, 025501 (2009) N.D.Scielzo, S.Caldwell, G.Savard, J.A.Clark, C.M.Deibel, J.Fallis, S.Gulick, D.Lascar, A.F.Levand, G.Li, J.Mintz, E.B.Norman, K.S.Sharma, M.Sternberg, T.Sun, J.Van Schelt Double-β-decay Q values of 130Te, 128Te, and 120Te ATOMIC MASSES 128,129,130,131,132Xe, 120,128,130Te, 120Sn; measured mass differences of 120Te-120Sn, 128Te-128Xe, 130Te-130Xe and 132Xe-129Xe pairs using Penning Trap mass spectrometer. RADIOACTIVITY 120Te(2β+); 128,130Te(2β-); measured parent-daughter mass differences by Penning-trap spectrometer; deduced Q values.
doi: 10.1103/PhysRevC.80.025501
2009WR02 Phys.Rev. C 79, 045803 (2009) C.Wrede, J.A.Caggiano, J.A.Clark, C.M.Deibel, A.Parikh, P.D.Parker Measurements of 31S energy levels and reevaluation of the thermonuclear resonant 30P(p, γ)31S reaction rate NUCLEAR REACTIONS 31P(3He, t)31S, E=20, 25 MeV; 31P(3He, t)31S, E=20 MeV; 32S(d, t)31S, E=25 MeV; measured (particle)(particle)-coin, proton branching ratios, tp(θ). 31S; deduced levels, J, π. 30P(p, γ)31S; deduced spectroscopic factors, widths and reaction rates. Comparison with Hauser-Feshbach statistical model estimates.
doi: 10.1103/PhysRevC.79.045803
2009WR03 Phys.Rev. C 79, 045808 (2009); Erratum Phys.Rev. C 80, 019904 (2009) C.Wrede, J.A.Caggiano, J.A.Clark, C.M.Deibel, A.Parikh, P.D.Parker Thermonuclear 30S(p, γ)31Cl reaction in type 1 X-ray bursts NUCLEAR REACTIONS 30S(p, γ); analyzed reaction rates and resonance parameters. 31Cl; deduced mass excess, reaction Q-value, onset temperatures for equilibrium and waiting point. Type I x-ray bursts.
doi: 10.1103/PhysRevC.79.045808
2008FA11 Phys.Rev. C 78, 022801 (2008) J.Fallis, J.A.Clark, K.S.Sharma, G.Savard, F.Buchinger, S.Caldwell, J.E.Crawford, C.M.Deibel, J.L.Fisker, S.Gulick, A.A.Hecht, D.Lascar, J.K.P.Lee, A.F.Levand, G.Li, B.F.Lundgren, A.Parikh, S.Russell, M.Scholte-van de Vorst, N.D.Scielzo, R.E.Segel, H.Sharma, S.Sinha, M.Sternberg, T.Sun, I.Tanihata, J.Van Schelt, J.C.Wang, Y.Wang, C.Wrede, Z.Zhou Determination of the proton separation energy of 93Rh from mass measurements ATOMIC MASSES 92Ru, 93Rh; measured masses; deduced mass excesses, proton separation energies. Penning trap method.
doi: 10.1103/PhysRevC.78.022801
2008KA01 Phys.Lett. B 658, 216 (2008) B.P.Kay, S.J.Freeman, J.P.Schiffer, J.A.Clark, C.Deibel, A.Heinz, A.Parikh, C.Wrede High-j single-particle neutron states outside the N = 82 core NUCLEAR REACTIONS 138Ba, 140Ce, 142Nd, 144Sm(α, 3He), E=51 MeV; measured σ(θ), excitation energy spectra; deduced spectroscopic factor and single-neutron energies.
doi: 10.1016/j.physletb.2007.11.033
2008SC03 Phys.Rev.Lett. 100, 112501 (2008) J.P.Schiffer, S.J.Freeman, J.A.Clark, C.Deibel, C.R.Fitzpatrick, S.Gros, A.Heinz, D.Hirata, C.L.Jiang, B.P.Kay, A.Parikh, P.D.Parker, K.E.Rehm, A.C.C.Villari, V.Werner, C.Wrede Nuclear Structure Relevant to Neutrinoless Double β Decay: 76Ge and 76Se NUCLEAR REACTIONS 74,76Ge, 76,78Se(d, p), E=15 MeV; 76Ge, 76Se(p, d), E=23 MeV; 74,76Ge, 76,78Se(3He, α), E=26 MeV; 74,76Ge, 76,78Se(α, 3He), E=40 MeV; measured reaction products energy spectra, cross sections. Deduced summed spectroscopic strengths, neutron vacancies.
doi: 10.1103/PhysRevLett.100.112501
2008VI06 Phys.Rev. C 78, 028802 (2008) D.W.Visser, C.Wrede, J.A.Caggiano, J.A.Clark, C.M.Deibel, R.Lewis, A.Parikh, P.D.Parker Addendum to "Measurement of 23Mg(p, γ)24Al resonance energies" NUCLEAR REACTIONS 23Mg(p, γ), E not given; analyzed resonance energies. 24Al; deduced levels, J, resonances.
doi: 10.1103/PhysRevC.78.028802
2007CL01 Phys.Rev. C 75, 032801 (2007) J.A.Clark, K.S.Sharma, G.Savard, A.F.Levand, J.C.Wang, Z.Zhou, B.Blank, F.Buchinger, J.E.Crawford, S.Gulick, J.K.P.Lee, D.Seweryniak, W.Trimble Precise measurement of the 64Ge mass and its effect on the rp process ATOMIC MASSES 64Ge, 64Ga; measured mass. Penning trap mass spectrometer. Astrophysical implications discussed.
doi: 10.1103/PhysRevC.75.032801
2007FR10 Phys.Rev. C 75, 051301 (2007) S.J.Freeman, J.P.Schiffer, A.C.C.Villari, J.A.Clark, C.Deibel, S.Gros, A.Heinz, D.Hirata, C.L.Jiang, B.P.Kay, A.Parikh, P.D.Parker, J.Qian, K.E.Rehm, X.D.Tang, V.Werner, C.Wrede Pair correlations in nuclei involved in neutrinoless double Β decay: 76Ge and 76Se NUCLEAR REACTIONS 74,76Ge, 76,78Se(p, t), E=23 MeV; measured yields, cross sections and angular distributions. Compared results to DWBA calculations.
doi: 10.1103/PhysRevC.75.051301
2007UG01 Phys.Rev. C 76, 025802 (2007) C.Ugalde, A.E.Champagne, S.Daigle, C.Iliadis, R.Longland, J.R.Newton, E.Osenbaugh-Stewart, J.A.Clark, C.Deibel, A.Parikh, P.D.Parker, C.Wrede Experimental evidence for a natural parity state in 26Mg and its impact on the production of neutrons for the s process NUCLEAR REACTIONS 22Ne(6Li, d), E=30 MeV; measured deuteron energy spectra. 26Mg deduced level energies.
doi: 10.1103/PhysRevC.76.025802
2007VI16 Phys.Rev. C 76, 065803 (2007) D.W.Visser, C.Wrede, J.A.Caggiano, J.A.Clark, C.Deibel, R.Lewis, A.Parikh, P.D.Parker Measurement of 23Mg(p, γ)24Al resonance energies NUCLEAR REACTIONS 24Mg(3He, t), E=30 MeV/nucleon; measured triton spectra, angular distributions. 24Al; deduced resonance energies, reaction rates. 23Mg(p, γ)24Al; resonance parameters.
doi: 10.1103/PhysRevC.76.065803
2007WR01 Phys.Rev. C 76, 052802 (2007) C.Wrede, J.A.Caggiano, J.A.Clark, C.Deibel, A.Parikh, P.D.Parker New 30P(p, γ)31S resonances and oxygen-neon nova nucleosynthesis NUCLEAR REACTIONS 31P(3He, t), E=20 MeV; measured charged particle spectra, angular distributions; 31S; deduced resonance energies, levels, J, π, 30P(p, γ) reaction rates, width parameters, spectroscopic factors. Comparison with 31P level scheme.
doi: 10.1103/PhysRevC.76.052802
2006RU09 Phys.Rev.Lett. 96, 252501 (2006) C.Ruiz, A.Parikh, J.Jose, L.Buchmann, J.A.Caggiano, A.A.Chen, J.A.Clark, H.Crawford, B.Davids, J.M.D'Auria, C.Davis, C.Deibel, L.Erikson, L.Fogarty, D.Frekers, U.Greife, A.Hussein, D.A.Hutcheon, M.Huyse, C.Jewett, A.M.Laird, R.Lewis, P.Mumby-Croft, A.Olin, D.F.Ottewell, C.V.Ouellet, P.Parker, J.Pearson, G.Ruprecht, M.Trinczek, C.Vockenhuber, C.Wrede Measurement of the Ec.m. = 184 keV Resonance Strength in the 26gAl(p, γ)27Si Reaction NUCLEAR REACTIONS 1H(26Al, γ), E=5.122, 5.226, 5.850 MeV; measured Eγ, (recoil)γ-coin. 26Al(p, γ), E(cm) ≈ 184 keV; deduced resonance strength. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.96.252501
2006SA56 Int.J. Mass Spectrom. 251, 252 (2006) G.Savard, J.C.Wang, K.S.Sharma, H.Sharma, J.A.Clark, C.Boudreau, F.Buchinger, J.E.Crawford, J.P.Greene, S.Gulick, A.A.Hecht, J.K.P.Lee, A.F.Levand, N.D.Scielzo, W.Trimble, J.Vaz, B.J.Zabransky Studies of neutron-rich isotopes with the CPT mass spectrometer and the CARIBU project ATOMIC MASSES 141,142,143,144,145,146,147Ba, 143,144,145,146,147,148La, 145,146,147,148,149,150,151Ce, 148,149,150,151,152,153Pr; measured masses with the Canadian Penning Trap (CPT) mass spectrometer and reviewed the CARIBU Project. Isotopes produced from fission of 252Cf. Comparisons with 1995 and 2003 mass evaluations.
doi: 10.1016/j.ijms.2006.01.047
2005CL08 Eur.Phys.J. A 25, Supplement 1, 629 (2005) J.A.Clark, R.C.Barber, B.Blank, C.Boudreau, F.Buchinger, J.E.Crawford, J.P.Greene, S.Gulick, J.C.Hardy, A.A.Hecht, A.Heinz, J.K.P.Lee, A.F.Levand, B.F.Lundgren, R.B.Moore, G.Savard, N.D.Scielzo, D.Seweryniak, K.S.Sharma, G.D.Sprouse, W.Trimble, J.Vaz, J.C.Wang, Y.Wang, B.J.Zabransky, Z.Zhou Investigating the rp-process with the Canadian Penning trap mass spectrometer ATOMIC MASSES 64Ge, 68Se; analyzed masses; deduced effective T1/2. 90,91Mo, 90,91,92,93Tc, 93,94Ru, 94,95Rh, 104,105,106,107In, 104,105,107,108Sn, 107,108Sb; measured masses. Penning trap, astrophysical implications discussed.
doi: 10.1140/epjad/i2005-06-172-3
2005SA44 Phys.Rev.Lett. 95, 102501 (2005) G.Savard, F.Buchinger, J.A.Clark, J.E.Crawford, S.Gulick, J.C.Hardy, A.A.Hecht, J.K.P.Lee, A.F.Levand, N.D.Scielzo, H.Sharma, K.S.Sharma, I.Tanihata, A.C.C.Villari, Y.Wang Q Value of the Superallowed Decay of 46V and Its Influence on Vud and the Unitarity of the Cabibbo-Kobayashi-Maskawa Matrix ATOMIC MASSES 46Ti, 46V; measured masses; deduced Q(EC). Penning trap mass spectrometer. RADIOACTIVITY 46V(EC); analyzed masses; deduced Q(EC), log ft. 10C, 14O, 22Mg, 26mAl, 34Cl, 34Ar, 38mK, 42Sc, 46V, 50Mn, 54Co, 74Rb; compiled, analyzed log ft; deduced quark-mixing matrix element.
doi: 10.1103/PhysRevLett.95.102501
2005SH52 Eur.Phys.J. A 25, Supplement 1, 45 (2005) K.S.Sharma, J.Vaz, R.C.Barber, F.Buchinger, J.A.Clark, J.E.Crawford, H.Fukutani, J.P.Greene, S.Gulick, A.Heinz, J.K.P.Lee, G.Savard, Z.Zhou, J.C.Wang Atomic mass ratios for some stable isotopes of platinum relative to 197Au ATOMIC MASSES 194,195,196,198Pt; measured masses. Penning trap mass spectrometer.
doi: 10.1140/epjad/i2005-06-191-0
2004CL03 Phys.Rev.Lett. 92, 192501 (2004) J.A.Clark, G.Savard, K.S.Sharma, J.Vaz, J.C.Wang, Z.Zhou, A.Heinz, B.Blank, F.Buchinger, J.E.Crawford, S.Gulick, J.K.P.Lee, A.F.Levand, D.Seweryniak, G.D.Sprouse, W.Trimble Precise Mass Measurement of 68Se, a Waiting-Point Nuclide along the rp Process ATOMIC MASSES 68Ge, 68As, 68Se; measured masses. Penning trap mass spectrometer. Astrophysical implications discussed.
doi: 10.1103/PhysRevLett.92.192501
2004CL07 Nucl.Phys. A746, 342c (2004) J.A.Clark, R.C.Barber, B.Blank, C.Boudreau, F.Buchinger, J.E.Crawford, S.Gulick, J.C.Hardy, A.Heinz, J.K.P.Lee, A.F.Levand, R.B.Moore, G.Savard, D.Seweryniak, K.S.Sharma, G.D.Sprouse, W.Trimble, J.Vaz, J.C.Wang, Z.Zhou Precise mass measurements of astrophysical interest made with the Canadian Penning trap mass spectrometer ATOMIC MASSES 68Se, 141,142,143,144,145,146,147Ba, 143,144,145,146,147,148La, 145,146,147,148,149,150,151Ce, 148,149,150,151,152,153Pr; measured masses. Penning trap mass spectrometer.
doi: 10.1016/j.nuclphysa.2004.09.051
2004SA53 Phys.Rev. C 70, 042501 (2004) G.Savard, J.A.Clark, F.Buchinger, J.E.Crawford, S.Gulick, J.C.Hardy, A.A.Hecht, V.E.Iacob, J.K.P.Lee, A.F.Levand, B.F.Lundgren, N.D.Scielzo, K.S.Sharma, I.Tanihata, I.S.Towner, W.Trimble, J.C.Wang, Y.Wang, Z.Zhou Q value of the superallowed decay of 22Mg and the calibration of the 21Na(p, γ) experiment ATOMIC MASSES 18O, 22Mg, 22Na; measured masses. 22Mg deduced Q(EC), ft. Penning trap spectrometer.
doi: 10.1103/PhysRevC.70.042501
2004TR14 Nucl.Phys. A746, 415c (2004) W.Trimble, G.Savard, B.Blank, J.A.Clark, F.Buchinger, T.Cocolios, J.E.Crawford, A.Frankel, J.P.Greene, S.Gulick, J.K.P.Lee, A.Levand, M.Portillo, K.S.Sharma, J.C.Wang, B.J.Zabransky, Z.Zhou, and the S258 Collaboration Development and first on-line tests of the RIA gas catcher prototype
doi: 10.1016/j.nuclphysa.2004.09.110
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