NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = S.J.Quinn Found 35 matches. 2023CR03 Nucl.Instrum.Methods Phys.Res. A1055, 168525 (2023) B.P.Crider, C.J.Prokop, S.N.Liddick, H.M.Albers, M.Alshudifat, A.D.Ayangeakaa, M.P.Carpenter, J.J.Carroll, J.Chen, C.J.Chiara, A.C.Dombos, S.Go, R.Grzywacz, J.Harker, R.V.F.Janssens, N.Larson, T.Lauritsen, R.Lewis, S.J.Quinn, F.Recchia, D.Seweryniak, A.Spyrou, S.Suchyta, W.B.Walters, S.Zhu New method for level-lifetime measurements with thick scintillators NUCLEAR REACTIONS 9Be(76Ge, X)68Ni/68Zn/69Ni/70Ni, E=140 MeV/nucleon; measured reaction products, Eγ, Iγ, Eβ, Iβ, βγ-coin.; deduced γ-ray energies, level T1/2. Comparison with available data. The National Superconducting Cyclotron Laboratory (NSCL), the coupled cyclotron facility.
doi: 10.1016/j.nima.2023.168525
2023LE04 Eur.Phys.J. A 59, 42 (2023) R.Lewis, A.Couture, S.N.Liddick, A.Spyrou, D.L.Bleuel, L.Crespo Campo, B.P.Crider, A.C.Dombos, M.Guttormsen, T.Kawano, A.C.Larsen, A.M.Lewis, S.Mosby, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem Statistical (n, γ) cross section model comparison for short-lived nuclei NUCLEAR REACTIONS 73Zn(n, γ), E<1 MeV; calculated σ using TALYS, EMPIRE, and CoH, level densities, γ-ray strength function. Comparison with experimental data.
doi: 10.1140/epja/s10050-023-00920-0
2021DO03 Phys.Rev. C 103, 025810 (2021) A.C.Dombos, A.Spyrou, F.Naqvi, S.J.Quinn, S.N.Liddick, A.Algora, T.Baumann, J.Brett, B.P.Crider, P.A.DeYoung, T.Ginter, J.Gombas, S.Lyons, T.Marketin, P.Moller, W.-J.Ong, A.Palmisano, J.Pereira, C.J.Prokop, P.Sarriguren, D.P.Scriven, A.Simon, M.K.Smith, S.Valenta Total absorption spectroscopy of the β decay of 101, 102Zr and 109Tc RADIOACTIVITY 101,102Zr, 109Tc(β-)[from 9Be(124Sn, X), E=120 MeV/nucleon, followed by separation of fragments using A1900 separator at NSCL-MSU]; measured Eγ, Iγ, implanted ions, (implants)γ-correlations using Summing NaI(Tl) (SuN) detector for total absorption spectroscopy; deduced β feedings as function of excitation energy, B(GT). Comparison with theoretical results from three different quasiparticle random-phase approximation (QRPA) models to investigate the ground-state shapes of the parent nuclei, and to test commonly used models that provide β-decay properties in r-process network calculations.
doi: 10.1103/PhysRevC.103.025810
2021GO10 Phys.Rev. C 103, 035803 (2021) J.Gombas, P.A.DeYoung, A.Spyrou, A.C.Dombos, A.Algora, T.Baumann, B.Crider, J.Engel, T.Ginter, E.Kwan, S.N.Liddick, S.Lyons, F.Naqvi, E.M.Ney, J.Pereira, C.Prokop, W.Ong, S.Quinn, D.P.Scriven, A.Simon, C.Sumithrarachchi β-decay feeding intensity distributions for 103, 104mNb RADIOACTIVITY 103,104mNb(β-)[from 9Be(124Sn, X), E not given, followed by separation of fragments using A1900 separator at NSCL-MSU]; measured reaction products and particle identification plot from 9Be(124Sn, X), Eγ, Iγ, total absorption gamma spectra from the decays of 103Nb and 104mNb using Summing NaI(Tl) (SuN) detector at the NSCL-MSU; deduced Iβ feedings to levels in 103Mo and 104Mo, cumulative B(GT) values. Comparison to predictions of quasiparticle random-phase approximation (QRPA) model. Relevance to antineutrino studies of nuclear reactors, and astrophysical r process.
doi: 10.1103/PhysRevC.103.035803
2021PE08 Phys.Rev. C 103, 055808 (2021) C.F.Persch, P.A.DeYoung, S.Lyons, A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, J.Gombas, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, J.Engel, M.Guttormsen, A.C.Larsen, R.Lewis, S.Karampagia, S.Mosby, E.M.Ney, A.Palmisano, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, M.K.Smith, S.J.Quinn β-decay feeding intensity distributions of 71, 73Ni RADIOACTIVITY 71,73Ni(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 fragment separator at NSCL-MSU facility]; measured implantation events and β particles using position-sensitive, double-sided, silicon-strip detector (DSSD), and two silicon PIN detectors for TOF and energy loss, Eγ, Iγ, half-lives of decays of 71,73Ni using a total absorption summing NaI(Tl) detector (SuN) surrounding the DSSD; deduced multiplicity spectra, Iβ(E) feedings, B(GT). GEANT4 and DICEBOX analysis of total absorption spectrum (TAS). Comparison with QRPA, and shell-model calculations, the latter using NuShellX@MSU code with JJ44B and JUN45 interaction Hamiltonians. Relevance to improvement in the nuclear input for r-process calculations. NUCLEAR REACTIONS 9Be(86Kr, X)71Ni/73Ni/71Cu/73Cu/, E=140 MeV/nucleon; measured yields of reaction products using A1900 fragment separator and two silicon PIN detectors for TOF and energy loss at NSCL-MSU facility.
doi: 10.1103/PhysRevC.103.055808
2020FA06 Phys.Lett. B 807, 135575 (2020) J.Fallis, C.Akers, A.M.Laird, A.Simon, A.Spyrou, G.Christian, D.Connolly, U.Hager, D.A.Hutcheon, A.Lennarz, P.O'Malley, S.J.Quinn, J.Riley, A.Rojas, C.Ruiz, M.Williams First measurement in the Gamow window of a reaction for the γ process in inverse kinematics: 76Se(α, γ)80Kr NUCLEAR REACTIONS 4He(76Se, γ)80Kr, E=1.4-1.5 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced σ, reaction rates. Comparison with calculations.
doi: 10.1016/j.physletb.2020.135575
2019DO02 Phys.Rev. C 99, 015802 (2019) A.C.Dombos, A.Spyrou, F.Naqvi, S.J.Quinn, S.N.Liddick, A.Algora, T.Baumann, J.Brett, B.P.Crider, P.A.DeYoung, T.Ginter, J.Gombas, E.Kwan, S.Lyons, W.-J.Ong, A.Palmisano, J.Pereira, C.J.Prokop, D.P.Scriven, A.Simon, M.K.Smith, C.S.Sumithrarachchi β-decay half-lives of neutron-rich nuclides in the A=100--110 mass region RADIOACTIVITY 99Y, 101,102Zr, 102m,103,104mNb, 109Tc(β-)[from 9Be(124Sn, X), E=120 MeV/nucleon, followed by separation of reaction products using A1900 fragment separator]; measured (implants)γ-coin, time-of-flight, total energy loss of fragments, and half-lives from (implants)γ-correlated decay curves using the implantation station installed inside the Summing NaI(Tl) (SuN) detector for the total absorption spectroscopy (TAS) technique at the NSCL-MSU facility. Comparison with previous experimental values; compiled measured and evaluated half-lives in literature for the seven isotopes studied in this work. Relevance to B(GT) distributions, nuclear astrophysics, nuclear structure, and nuclear technology.
doi: 10.1103/PhysRevC.99.015802
2019LE05 Phys.Rev. C 99, 034601 (2019) R.Lewis, S.N.Liddick, A.C.Larsen, A.Spyrou, D.L.Bleuel, A.Couture, L.Crespo Campo, B.P.Crider, A.C.Dombos, M.Guttormsen, S.Mosby, F.Naqvi, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem Experimental constraints on the 73Zn(n, γ)74Zn reaction rate RADIOACTIVITY 74Cu(β-)[74Cu ions from Be(86Kr, X), E=140 MeV/nucleon reaction and using A1900 separator at NSCL-MSU facility]; measured β particles, Eγ, Iγ, βγ-coin, half-life of 74Cu decay using the Summing NaI detector for total absorption spectroscopy (TAS); deduced nuclear level density (NLD), and γ strength function (γSF) using the β-Oslo method, distribution of spins for levels in 74Zn around S(n). Comparison with previous experimental results, and with theoretical calculations using TALYS code. Results used to deduce σ for 73Zn(n, γ) reaction. NUCLEAR REACTIONS 73Zn(n, γ), E=0.01-1 MeV; deduced σ(E), and astrophysical reaction rates using the experimental NLD and γSF. Comparison with Hauser-Feshbach statistical model calculations using TALYS code.
doi: 10.1103/PhysRevC.99.034601
2019LI35 Phys.Rev. C 100, 024624 (2019) S.N.Liddick, A.C.Larsen, M.Guttormsen, A.Spyrou, B.P.Crider, F.Naqvi, J.E.Midtbo, F.L.Bello Garrote, D.L.Bleuel, L.Crespo Campo, A.Couture, A.C.Dombos, F.Giacoppo, A.Gorgen, K.Hadynska-Klek, T.W.Hagen, V.W.Ingeberg, B.V.Kheswa, R.Lewis, S.Mosby, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, G.M.Tveten, M.Wiedeking, F.Zeiser Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method RADIOACTIVITY 51Sc(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin; deduced level density, γ-strength function. Measurement was performed at NSCL using the Summing NaI(Tl) detector SuN, used as a TAS. NUCLEAR REACTIONS 50Ti(d, p)51Ti, E=12.5 MeV; measured Ep, Ip, Eγ, Iγ, γp-coin; deduced nuclear level density (NLD), γ strength function (γSF). Measurement was performed at the Oslo Cyclotron Laboratory, Sweden using the CACTUS NaI scintillator array.
doi: 10.1103/PhysRevC.100.024624
2019LY02 Phys.Rev. C 100, 025806 (2019) S.Lyons, A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, J.Engel, M.Guttormsen, A.C.Larsen, R.Lewis, P.Moller, S.Mosby, M.R.Mumpower, E.M.Ney, A.Palmisano, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, M.K.Smith, S.J.Quinn 69, 71Co β-decay strength distributions from total absorption spectroscopy RADIOACTIVITY 69,71Co(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon, followed by in flight separation of fragments by the A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, Eβ, βγ-coin, half-lives of decays of 69,71Co decays, total absorption spectra using Summing NaI(Tl) (SuN) detector for γ rays and double-sided silicon strip detector (DSSD) for β; deduced cumulative Iβ distributions and compared to QRPA and Skyrme QRPA calculations, Gamow-Teller (GT) strength distribution. Comparison of decay half-lives with ENSDF values, and theoretical calculations using shell mode, QRPA and Skyrme QRPA. Relevance to r process in nucleosynthesis.
doi: 10.1103/PhysRevC.100.025806
2018LA07 Phys.Rev. C 97, 054329 (2018) A.C.Larsen, J.E.Midtbo, M.Guttormsen, T.Renstrom, S.N.Liddick, A.Spyrou, S.Karampagia, B.A.Brown, O.Achakovskiy, S.Kamerdzhiev, D.L.Bleuel, A.Couture, L.Crespo Campo, B.P.Crider, A.C.Dombos, R.Lewis, S.Mosby, F.Naqvi, G.Perdikakis, C.J.Prokop, S.J.Quinn, S.Siem Enhanced low-energy γ-decay strength of 70Ni and its robustness within the shell model RADIOACTIVITY 70Co(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon followed by fragment separation using A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, summed γ energies, β-γ-coin using double-sided silicon strip detector (DSSD) for electrons placed in the center of the Summing NaI (SuN) total absorption spectrometer for γ radiation. 70Ni; deduced nuclear level density (NLD) and γ-strength function (γSF) using β-Oslo method. Comparison with previous experimental results, and with HFB+c calculations. NUCLEAR STRUCTURE 70Ni; calculated levels, J, π, B(E2), level densities, γSF, summed γSF, and M1 γ strengths for A=56-76 Ni isotopes. Quasiparticle time-blocking approximation and large-scale shell-model calculations with CA48MH1G and JUN45 interactions. Comparison with experimental results.
doi: 10.1103/PhysRevC.97.054329
2017ON01 Phys.Rev. C 95, 055806 (2017) W.-J.Ong, C.Langer, F.Montes, A.Aprahamian, D.W.Bardayan, D.Bazin, B.A.Brown, J.Browne, H.Crawford, R.Cyburt, E.B.Deleeuw, C.Domingo-Pardo, A.Gade, S.George, P.Hosmer, L.Keek, A.Kontos, I.-Y.Lee, A.Lemasson, E.Lunderberg, Y.Maeda, M.Matos, Z.Meisel, S.Noji, F.M.Nunes, A.Nystrom, G.Perdikakis, J.Pereira, S.J.Quinn, F.Recchia, H.Schatz, M.Scott, K.Siegl, A.Simon, M.Smith, A.Spyrou, J.Stevens, S.R.Stroberg, D.Weisshaar, J.Wheeler, K.Wimmer, R.G.T.Zegers Low-lying level structure of 56Cu and its implications for the rp process NUCLEAR REACTIONS 2H(56Ni, 56Cu), E AP 75 MeV/nucleon, [secondary 56Ni beam from 9Be(58Ni, X), E=160 MeV/nucleon primary reaction using A1900 separator at NSCL-MSU facility]; measured ΔE-TOF particle identification for ions, Eγ, Iγ, γγ-, (56Cu ions)γ-coin using GRETINA array and S800 magnetic spectrograph. 56Cu; deduced levels, J, π. Comparison with mirror nucleus 56Co level scheme, and with shell-model calculations 55Ni(p, γ)56Cu, T9=0.1-10; deduced Q value, astrophysical reaction rates as function of temperature, and impact on the r-process around 56Ni. NUCLEAR STRUCTURE 56Cu; calculated levels, resonance energies, J, π, spectroscopic factors, Γp, Γγ using shell model with the GXPF1A interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.95.055806
2017PE09 Phys.Rev. C 96, 014306 (2017) D.Perez-Loureiro, C.Wrede, M.B.Bennett, S.N.Liddick, A.Bowe, B.A.Brown, A.A.Chen, K.A.Chipps, N.Cooper, E.McNeice, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.Prokop, S.J.Quinn, J.Sakstrup, M.Santia, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam Confirmation of the isomeric state in 26P NUCLEAR REACTIONS 9Be(36Ar, 26P), E=150 MeV/nucleon; measured 26P recoils, Eγ, Iγ, (26P)γ-coin, half-life of the isomer by (recoils)γ(t) using A1900 fragment separator, Radio-Frequency Fragment Separator and SeGA array at NSCL-MSU facility. 26P; deduced level, isomer, S(p). Comparison with previous experimental data.
doi: 10.1103/PhysRevC.96.014306
2017SP03 J.Phys.(London) G44, 044002 (2017) A.Spyrou, A.C.Larsen, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, M.Guttormsen, D.L.Bleuel, A.Couture, L.Crespo Campo, R.Lewis, S.Mosby, M.R.Mumpower, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem, R.Surman Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni RADIOACTIVITY 69Co(β-); measured decay products, Eγ, Iγ; deduced the γ-ray strength function and the nuclear level density, T1/2. Comparison with available data.
doi: 10.1088/1361-6471/aa5ae7
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
2016DO05 Phys.Rev. C 93, 064317 (2016) A.C.Dombos, D.-L.Fang, A.Spyrou, S.J.Quinn, A.Simon, B.A.Brown, K.Cooper, A.E.Gehring, S.N.Liddick, D.J.Morrissey, F.Naqvi, C.S.Sumithrarachchi, R.G.T.Zegers Total absorption spectroscopy of the β decay of 76Ga RADIOACTIVITY 76Ga(β-)[from 9Be(76Ge32+, X), E=130 MeV/nucleon and separated by A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, total absorption gamma-ray (TAS) spectrum using a segmented NaI(Tl)(SuN) detector, Eβ, Iβ by a silicon surface barrier, βγ-coin, half-life of 76Ga decay; deduced Iβ feedings and compared to the evaluated data in the ENSDF database, β strength functions and B(GT). Comparison with shell-model calculations using jj44b and JUN45 interactions. Relevance to studies of neutrinoless double β-decay of 76Ge.
doi: 10.1103/PhysRevC.93.064317
2016LI30 Phys.Rev.Lett. 116, 242502 (2016) S.N.Liddick, A.Spyrou, B.P.Crider, F.Naqvi, A.C.Larsen, M.Guttormsen, M.Mumpower, R.Surman, G.Perdikakis, D.L.Bleuel, A.Couture, L.C.Campo, A.C.Dombos, R.Lewis, S.Mosby, S.Nikas, C.J.Prokop, T.Renstrom, B.Rubio, S.Siem, S.J.Quinn Experimental Neutron Capture Rate Constraint Far from Stability RADIOACTIVITY 70Co(β-) [from 9Be(86Kr, X), E=140 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced nuclear level density as a function of excitation energy. Comparison with available data. NUCLEAR REACTIONS 69Ni(n, γ), E<10 GK; calculated nuclear reaction capture rates using experimental level densities and code TALYS.
doi: 10.1103/PhysRevLett.116.242502
2016PE10 Phys.Rev. C 93, 064320 (2016) D.Perez-Loureiro, C.Wrede, M.B.Bennett, S.N.Liddick, A.Bowe, B.A.Brown, A.A.Chen, K.A.Chipps, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.J.Prokop, J.Quaglia, S.J.Quinn, J.Sakstrup, M.Santia, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam β-delayed γ decay of 26P: Possible evidence of a proton halo RADIOACTIVITY 26P, 24Al(β+), (EC)[from 9Be(36Ar, X), E=150 MeV/nucleon using A1900 fragment separator and the Radio-Frequency Fragment Separator (RFFS) at NSCL-MSU]; measured Eγ, Iγ, 26P ions, Eβ, Iβ, γγ-, βγγ-coin using GeDSSD detector for ions and β particles and SeGA array for γ rays. 26Si; deduced levels, J, π, Iβ feedings, B(GT) strengths, logft, mirror asymmetry, proton halo. Comparisons with β decay of 26Na mirror nucleus, previous experimental data for 26Si levels, and USDB shell-model calculations. 24Mg; observed γ rays. 25Al(p, γ)26Si, T9=0.01-0.5; calculated astrophysical reaction rates.
doi: 10.1103/PhysRevC.93.064320
2016SP04 Phys.Rev.Lett. 117, 142701 (2016) A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, M.Guttormsen, A.C.Larsen, R.Lewis, P.Moller, S.Mosby, M.R.Mumpower, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, S.J.Quinn, S.Valenta Strong Neutron-γ Competition above the Neutron Threshold in the Decay of 70Co RADIOACTIVITY 70Co(β-) [9Be(86Kr, X)70Co, E=140 MeV/nucleon]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced β-decay intensity, the large fragmentation of the β intensity at high energies, as well as the strong competition between γ-rays and neutrons. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.117.142701
2015NA14 Phys.Rev. C 92, 025804 (2015) F.Naqvi, S.J.Quinn, A.Spyrou, A.Battaglia, M.Couder, P.A.DeYoung, A.C.Dombos, X.Fang, J.Gorres, A.Kontos, Q.Li, S.Lyons, D.Robertson, A.Simon, K.Smith, M.K.Smith, E.Stech, W.P.Tan, M.Wiescher Proton capture cross section of 72Ge and astrophysical implications NUCLEAR REACTIONS 72,74Ge(p, γ), E=1.8-3.6 MeV; measured Eγ, Iγ, σ(E) using γ-summing detector SuN at Notre Dame Tandem Van de Graff accelerator facility. Natural Ge target. Comparison with calculations using TALYS1.6 code and different combinations of optical model potentials (OMPs), nuclear level densities (NLDs), and γ-ray strength functions, and with data in standard astrophysical libraries BRUSLIB and REACLIB. Relevance to astrophysical p-process.
doi: 10.1103/PhysRevC.92.025804
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
2015QU01 Phys.Rev. C 92, 045805 (2015) S.J.Quinn, A.Spyrou, A.Simon, A.Battaglia, M.Bowers, B.Bucher, C.Casarella, M.Couder, P.A.DeYoung, A.C.Dombos, J.Gorres, A.Kontos, Q.Li, A.Long, M.Moran, N.Paul, J.Pereira, D.Robertson, K.Smith, M.K.Smith, E.Stech, R.Talwar, W.P.Tan, M.Wiescher (α, γ) cross section measurements in the region of light p nuclei NUCLEAR REACTIONS 74Ge, 90,92Zr(α, γ), E=9.5-12 MeV; measured Eγ, Iγ, σ(E) using the SuN detector and gamma-summing technique at Notre Dame Tandem Van de Graaff accelerator; deduced stellar reaction rates for 90Zr(α, γ) reaction. Nucleosynthesis of light p-process nuclei. Comparison with statistical model calculations using TALYS and NON-SMOKER codes.
doi: 10.1103/PhysRevC.92.045805
2015SC16 Phys.Rev. C 92, 031302 (2015) S.B.Schwartz, C.Wrede, M.B.Bennett, S.N.Liddick, D.Perez-Loureiro, A.Bowe, A.A.Chen, K.A.Chipps, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.Prokop, J.Quaglia, S.J.Quinn, J.Sakstrup, M.Santia, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam Observation of Doppler broadening in β-delayed proton-γ decay RADIOACTIVITY 26P(β+p)[from 9Be(36Ar, X), E=150 MeV/nucleon and A1900 fragment separator at NSCL-MSU]; measured Eγ, first observation of Doppler-broadened γ rays in β-delayed proton-γ decay, Iγ, γγ-coin, Eβ, βγ-correlated spectra using Si detectors for β and implanted nuclei, SeGA array for γ rays 25Al; deduced levels, β+p feedings. 26Si; deduced energies of proton emitting states from the kinematic analysis of Doppler-broadened γ rays. Comparison with previous experimental data. 24Mg, 26Al, 26Si; observed γ rays.
doi: 10.1103/PhysRevC.92.031302
2015SI13 Phys.Rev. C 92, 025806 (2015) A.Simon, M.Beard, A.Spyrou, S.J.Quinn, B.Bucher, M.Couder, P.A.DeYoung, A.C.Dombos, J.Gorres, A.Kontos, A.Long, M.T.Moran, N.Paul, J.Pereira, D.Robertson, K.Smith, E.Stech, R.Talwar, W.P.Tan, M.Wiescher Systematic study of (α, γ) reactions for stable nickel isotopes NUCLEAR REACTIONS 58,60,61,62,64Ni(α, γ), E=5-9 MeV; measured Eγ, Iγ, σ(E) using γ-summing detector SuN at Notre Dame tandem (FN) Pelletron accelerator facility; deduced astrophysical reaction rates. Comparison with available experimental data, and with Hauser-Feshbach calculations using TALYS 1.6 code with different combinations of α-optical potentials. nuclear level densities, and E1 γ-ray strength functions. Comparisons with results in NON-SMOKER and BRUSLIB databases.
doi: 10.1103/PhysRevC.92.025806
2014LA16 Phys.Rev.Lett. 113, 032502 (2014) C.Langer, F.Montes, A.Aprahamian, D.W.Bardayan, D.Bazin, B.A.Brown, J.Browne, H.Crawford, R.H.Cyburt, C.Domingo-Pardo, A.Gade, S.George, P.Hosmer, L.Keek, A.Kontos, I-Y.Lee, A.Lemasson, E.Lunderberg, Y.Maeda, M.Matos, Z.Meisel, S.Noji, F.M.Nunes, A.Nystrom, G.Perdikakis, J.Pereira, S.J.Quinn, F.Recchia, H.Schatz, M.Scott, K.Siegl, A.Simon, M.Smith, A.Spyrou, J.Stevens, S.R.Stroberg, D.Weisshaar, J.Wheeler, K.Wimmer, R.G.T.Zegers Determining the rp-Process Flow through 56Ni: Resonances in 57Cu(p, γ)58Zn identified with GRETINA NUCLEAR REACTIONS 2H(57Cu, n), E=75 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies, J, π, reaction rates. Shell model calculations, GXPF1A interaction.
doi: 10.1103/PhysRevLett.113.032502
2014QU01 Phys.Rev. C 89, 054611 (2014) S.J.Quinn, A.Spyrou, E.Bravo, T.Rauscher, A.Simon, A.Battaglia, M.Bowers, B.Bucher, C.Casarella, M.Couder, P.A.DeYoung, A.C.Dombos, J.Gorres, A.Kontos, Q.Li, A.Long, M.Moran, N.Paul, J.Pereira, D.Robertson, K.Smith, M.K.Smith, E.Stech, R.Talwar, W.P.Tan, M.Wiescher Measurement of the 58Ni(α, γ)62Zn reaction and its astrophysical impact NUCLEAR REACTIONS 58Ni(α, γ)62Zn, E=5.5-9.5 MeV; measured Eγ, Iγ, σ(E) using Summing NaI(Tl) (SuN) detector at NSL-Notre Dame facility; deduced astrophysical reaction rates. Comparison with predictions from statistical Hauser-Feshbach model using SMARAGD code. Discussed Astrophysical implications and elemental abundances.
doi: 10.1103/PhysRevC.89.054611
2014QU04 Nucl.Instrum.Methods Phys.Res. A 757, 62 (2014) S.J.Quinn, A.Spyrou, A.Simon, A.Battaglia, M.Bowers, B.Bucher, C.Casarella, M.Couder, P.A.Deyoung, A.C.Dombos, J.P.Greene, J.Gorres, A.Kontos, Q.Li, A.Long, M.Moran, N.Paul, J.Pereira, D.Robertson, K.Smith, M.K.Smith, E.Stech, R.Talwar, W.P.Tan, M.Wiescher First application of the technique in inverse kinematics NUCLEAR REACTIONS 1H(27Al, γ), 1H(58Ni, γ), 27Al(p, γ), 58Ni(p, γ), E=956 keV-1.5 GeV; measured products, Eγ, Iγ; deduced resonance parameters. Data were imported from EXFOR entry C2123.
doi: 10.1016/j.nima.2014.05.020
2014SP05 Phys.Rev.Lett. 113, 232502 (2014) A.Spyrou, S.N.Liddick, A.C.Larsen, M.Guttormsen, K.Cooper, A.C.Dombos, D.J.Morrissey, F.Naqvi, G.Perdikakis, S.J.Quinn, T.Renstrom, J.A.Rodriguez, A.Simon, C.S.Sumithrarachchi, R.G.T.Zegers Novel technique for Constraining r-Process (n, γ) Reaction Rates RADIOACTIVITY 76Ga(β-) [from Be(76Ge, X), E=130 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced nuclear level density and γ-ray strength function, restrictions on 75Ge(n, γ) reaction σ and rate. Hauser-Feshbach calculations.
doi: 10.1103/PhysRevLett.113.232502
2014SU05 Phys.Rev. C 89, 021301 (2014) S.Suchyta, S.N.Liddick, Y.Tsunoda, T.Otsuka, M.B.Bennett, A.Chemey, M.Honma, N.Larson, C.J.Prokop, S.J.Quinn, N.Shimizu, A.Simon, A.Spyrou, V.Tripathi, Y.Utsuno, J.M.VonMoss Shape coexistence in 68Ni RADIOACTIVITY 68Co(β-)[from 9Be(76Ge, X), E=130 MeV/nucleon]; measured Eγ, Iγ, γγ-coin, internal transitions, internal-conversion decay, electron-positron pair production from first excited 0+ state using germanium double-sided strip detector (GeDSSD) and SeGA array at NSCL-MSU facility. 68Ni; deduced level energy of first excited 0+ state, E0 transition strength, level half-life, difference in deformation between the excited 0+ state and the ground state. Comparison with Monte-Carlo shell-model calculations using several interactions, and with experimental data for excited 0+ states in 90Zr.
doi: 10.1103/PhysRevC.89.021301
2013BE41 Phys.Rev.Lett. 111, 232503 (2013) M.B.Bennett, C.Wrede, K.A.Chipps, J.Jose, S.N.Liddick, M.Santia, A.Bowe, A.A.Chen, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain J.Pereira, C.Prokop, J.Quaglia, S.J.Quinn, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam Classical-Nova Contribution to the Milky Way's 26Al Abundance: Exit Channel of the Key 25Al(p, γ)26Si Resonance RADIOACTIVITY 26P(β+) [from Be(36Ar, X)26P, E=150 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ- and βγγ-coin.; deduced resonances energy, J, π. Astrophysical implications.
doi: 10.1103/PhysRevLett.111.232503
2013QU01 Phys.Rev. C 88, 011603 (2013) S.J.Quinn, A.Spyrou, A.Simon, A.Battaglia, M.Couder, P.A.DeYoung, A.C.Dombos, X.Fang, J.Gorres, A.Kontos, Q.Li, S.Lyons, B.S.Meyer, G.F.Peaslee, D.Robertson, K.Smith, M.K.Smith, E.Stech, W.P.Tan, X.D.Tang, M.Wiescher Probing the production mechanism of the light p-process nuclei NUCLEAR REACTIONS 74Ge(p, γ)75As, E=1.6-4.2 MeV; measured Eγ, Iγ, σ(E) using the NSCL SuN detector at Notre Dame facility; deduced astrophysical S(E) factors, reaction rates at T9=0.10-10.0, cumulative mass fraction of 74Se in a Type II Supernova model. Comparison with previous experimental data, and with theoretical predictions using NON-SMOKER and TALYS nuclear reaction codes.
doi: 10.1103/PhysRevC.88.011603
2013SI11 Phys.Rev. C 87, 055802 (2013) A.Simon, A.Spyrou, T.Rauscher, C.Frohlich, S.J.Quinn, A.Battaglia, A.Best, B.Bucher, M.Couder, P.A.DeYoung, X.Fang, J.Gorres, A.Kontos, Q.Li, L.-Y.Lin, A.Long, S.Lyons, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher Systematic study of (p, γ) reactions on Ni isotopes NUCLEAR REACTIONS 58,60,61,62,64Ni(p, γ), E=2.0-6.0 MeV; measured Eγ, Iγ, σ(E) using the NSCL-SuN gamma detector utilizing γ-summing technique at Notre Dame; deduced sensitivity of the reaction σ(E) with variation of γ- and particle width. Comparison with theoretical predictions from NON-SMOKER and SMARAGD computer code calculations, and with previous experimental data. Predicted astrophysical reaction rates on all stable nickel isotopes including that for 56Ni(p, γ)57Cu.
doi: 10.1103/PhysRevC.87.055802
2013SI35 Nucl.Instrum.Methods Phys.Res. A 703, 16 (2013) A.Simon, S.J.Quinn, A.Spyrou, A.Battaglia, I.Beskin, A.Best, B.Bucher, M.Couder, P.A.Deyoung, X.Fang, J.Gorres, A.Kontos, Q.Li, S.N.Liddick, A.Long, S.Lyons, K.Padmanabhan, J.Peace, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher SuN: Summing NaI(Tl) gamma-ray detector for capture reaction measurements NUCLEAR REACTIONS 27Al(p, γ), E=2.3-3.9 MeV; measured products, Eγ, Iγ; deduced resonance parameters. Data were imported from EXFOR entry C1967.
doi: 10.1016/j.nima.2012.11.045
2013SP04 Phys.Rev. C 88, 045802 (2013) A.Spyrou, S.J.Quinn, A.Simon, T.Rauscher, A.Battaglia, A.Best, B.Bucher, M.Couder, P.A.DeYoung, A.C.Dombos, X.Fang, J.Gorres, A.Kontos, Q.Li, L.Y.Lin, A.Long, S.Lyons, B.S.Meyer, A.Roberts, D.Robertson, K.Smith, M.K.Smith, E.Stech, B.Stefanek, W.P.Tan, X.D.Tang, M.Wiescher Measurement of the 90, 92Zr(p, γ)91, 93Nb reactions for the nucleosynthesis of elements near A=90 NUCLEAR REACTIONS 90,92Zr(p, γ)91Nb/93Nb, E=2.0-5.0 MeV; measured Eγ, Iγ, σ(E) using NSCL SuN detector at Notre Dame accelerator facility; deduced astrophysical S factors, reaction rates, sensitivity of reaction to widths in Hauser-Feshbach model. Comparison with standard NON-SMOKER model, and two TALYS calculations. Relevance to synthesis and abundances of light p nuclei.
doi: 10.1103/PhysRevC.88.045802
2012SM08 Phys.Rev. C 86, 057302 (2012) J.K.Smith, T.Baumann, B.A.Brown, G.Christian, J.E.Finck, C.R.Hoffman, Z.Kohley, S.Mosby, J.F.Novak, S.J.Quinn, J.Snyder, A.Spyrou, M.J.Strongman, M.Thoennessen Neutron unbound states in 28Ne and 25F NUCLEAR REACTIONS 9Be(29Na, 28Ne), (26F, 25F), [secondary 29Na and 26F beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction], E=102 MeV/nucleon; measured charged fragment spectra by TOF and energy loss, neutron spectra using MONA array at NSCL facility, decay energy spectra for 28Ne and 25F reconstructed from the 27Ne+n and 24F+n systems. 25F, 28Ne; deduced unbound levels, J, π, spectroscopic factors, Breit-Wigner resonance. Glauber reaction model analysis. Comparison with shell model calculations. NUCLEAR STRUCTURE 28Ne, 25F; calculated bound and unbound levels, J, π, spectroscopic factors for 27Ne+n system, widths. Shell model. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.057302
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