NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = J.R.Winkelbauer Found 36 matches. 2022GA37 Nucl.Instrum.Methods Phys.Res. A1037, 166853 (2022) P.Gastis, J.R.Winkelbauer, D.S.Connolly, S.A.Kuvin, S.M.Mosby, C.J.Prokop, I.Stetcu Absolute mass calibration of fission product distributions measured with the E-υ method RADIOACTIVITY 252Cf(SF); measured decay products, Eγ, Iγ. 92Rb; deduced fission product yields. The single-arm SPIDER spectrometer.
doi: 10.1016/j.nima.2022.166853
2021MA55 Phys.Rev. C 104, 024608 (2021) J.Manfredi, J.Lee, A.M.Rogers, M.B.Tsang, W.G.Lynch, C.Anderson, J.Barney, K.W.Brown, B.Brophy, G.Cerizza, Z.Chajecki, G.Chen, J.Elson, J.Estee, H.Iwasaki, C.Langer, Z.Li, C.Loelius, C.Y.Niu, C.Pruitt, H.Setiawan, R.Showalter, K.Smith, L.G.Sobotka, S.Sweany, S.Tangwancharoen, J.R.Winkelbauer, Z.Xiao, Z.Xu Quenching of single-particle strengths in direct reactions NUCLEAR REACTIONS 1H(46Ar, d)45Ar, (34Ar, d)33Ar, E=70 MeV/nucleon; measured heavy reaction residues, outgoing E(d), I(d), (reaction residues)δ-coin, differential σ(θ) using High Resolution Array (HiRA) for deuterons and S800 spectrograph for residue products at NSCL-MSU facility, CH2 target; deduced spectroscopic factors and reduction factors for the final states, asymmetry dependence of reduction factors. Comparison with results of previous measurements, and theoretical calculations using large-basis shell model (LBSM). Relevance to single-nucleon knockout reactions.
doi: 10.1103/PhysRevC.104.024608
2020ME06 Phys.Rev. C 101, 052801 (2020) Z.Meisel, S.George, S.Ahn, D.Bazin, B.A.Brown, J.Browne, J.F.Carpino, H.Chung, R.H.Cyburt, A.Estrade, M.Famiano, A.Gade, C.Langer, M.Matos, W.Mittig, F.Montes, D.J.Morrissey, J.Pereira, H.Schatz, J.Schatz, M.Scott, D.Shapira, K.Smith, J.Stevens, W.Tan, O.Tarasov, S.Towers, K.Wimmer, J.R.Winkelbauer, J.Yurkon, R.G.T.Zegers Nuclear mass measurements map the structure of atomic nuclei and accreting neutron stars ATOMIC MASSES 48,49Ar, 52,53,54,55,56,57Sc, 56,57,58,59Ti, 57,58,59,60,61,62V, 64,65Cr, 67,68Mn, 67,68,69,70Fe; measured time of flight, ΔE, Bπ, and mass excess using the A1900 fragment separator and the S800 spectrograph for particle identification at the NSCL-MSU facility; deduced S(2n), and Dn(Z, A)=S(n)(Z, A+1)-S(n)(Z, A), related to pairing gap. Comparison with available evaluated data in AME2016, and with shell model calculations using GX1A Hamiltonian for Sc isotopes. Discussion of upper-Z limit for N=34 subshell closure and lower-Z limit for N=40 subshell, and impact on electron-capture cooling in neutron star crusts. Isotopes produced in 9Be(82Se, X), E=140 MeV/nucleon reaction.
doi: 10.1103/PhysRevC.101.052801
2020SA44 Phys.Rev. C 102, 064317 (2020) M.Salathe, H.L.Crawford, A.O.Macchiavelli, B.P.Kay, C.R.Hoffman, A.D.Ayangeakaa, C.M.Campbell, R.M.Clark, M.Cromaz, P.Fallon, M.D.Jones, S.A.Kuvin, J.Sethi, M.Wiedeking, J.R.Winkelbauer, A.H.Wuosmaa Search for the 1/2+ intruder state in 35P NUCLEAR REACTIONS 2H(36S, 3He), E=15.3 MeV/nucleon; measured E(3He), I(3He), σ(θ) using deuterated-plastic targets and HELIOS solenoidal spectrometer at the ATLAS-ANL facility. 35P; deduced levels, J, π, spectroscopic factors, configurations, 0p0h waveform amplitude of the 36S ground state, no candidate peak for 2p2h bandhead and a deformed intruder state in 35P. Angular distribution data analyzed using PTOLEMY DWBA calculations with possible combinations of optical potentials. Comparison with previous experimental results. Systematics of experimental and shell model results for energies of 2p2h bandheads for the N=20 isotones: 32Mg, 33Al, 34Si, 35P, 36S.
doi: 10.1103/PhysRevC.102.064317
2019BA32 Nucl.Instrum.Methods Phys.Res. B456, 142 (2019) P.Baldez, S.Fellows, R.E.Blakeley, M.Tanguay, M.L.Wetzel, A.A.Hecht, D.Mayorov, F.Tovesson, J.Winkelbauer Measurements of 252Cf fission product energy loss through thin silicon nitride and carbon foils, and comparison with SRIM-2013 and MCNP6.2 simulations RADIOACTIVITY 252Cf(SF); measured decay products; deduced fission product energy loss. Comparison with TRIM program in SRIM-2013 and with MCNP6.2 calculations.
doi: 10.1016/j.nimb.2019.06.027
2019CH16 Phys.Rev. C 99, 044304 (2019) R.J.Charity, K.W.Brown, J.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.Winkelbauer, S.Bedoor, D.G.McNeel, A.H.Wuosmaa Invariant-mass spectroscopy of 18Ne 16O, and 10C excited states formed in neutron-transfer reactions NUCLEAR REACTIONS 9Be(17Ne, X), E=58.2 MeV/nucleon;9Be(15O, X), E=48.1 MeV/nucleon, [secondary 17Ne and 15O beams from 9Be(20Ne, X), E=170 MeV primary reaction]; 9Be(9C, X), E=64.6 MeV/nucleon, [secondary 9C beam from 9Be(16O, X), E=150 MeV primary reaction]; measured charged particle spectra, σ(θ), Eγ, Iγ, γ(θ), (particle)γ-coin, excitation-energy spectra with invariant-mass method, center-of-mass velocity distributions, invariant-mass spectroscopy for neutron transfer reactions using the HiRA ΔE-E telescope array for charged particle detection and the CAESAR array for γ detection at NSCL-MSU facility. 10C, 16O, 18Ne; deduced levels, J, π, widths, branching ratios of high-lying states, and IMM fits for A=18 Comparison with theoretical predictions, and with previous experimental results.
doi: 10.1103/PhysRevC.99.044304
2019CH50 Phys.Rev. C 100, 064305 (2019) R.J.Charity, K.W.Brown, J.Okolowicz, M.Ploszajczak, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa Invariant-mass spectroscopy of 14O excited states NUCLEAR REACTIONS 9Be(15O, 14O), E=52.1 MeV/nucleon, [secondary 15O beam from 9Be(20Ne, X)15O/17Ne, E=150 MeV/nucleon]; measured reaction products, Eγ, Iγ, (particle)γ-coin using HiRA array for particle detection and CAESAR array for γ rays at the NSCL-MSU facility. 14O; deduced levels, resonances, Jπ, Γ, cross sections and branching ratios for different one-proton and 2-proton emitting channels from excited states in 14O, configuration mixing in resonance spectra. 13N, 12C; deduced levels from 1-proton and 2-proton emissions from excited states in 14O. Comparison with shell model calculations embedded in the continuum (SMEC), treating bound and scattering states in a unified model.
doi: 10.1103/PhysRevC.100.064305
2019WI03 Phys.Rev. C 99, 024318 (2019) J.R.Winkelbauer, S.M.Mosby, A.Couture, H.Y.Lee, J.L.Ullmann, T.Kawano, G.Rusev, M.Jandel, M.Krticka Statistical neutron capture in the limit of low nuclear level density NUCLEAR REACTIONS 96Zr, 208Pb(n, γ), E=thermal, 301, 3818, 4133, 5443, 5971, 9004, 17779 eV; measured Eγ, Iγ, γγ-coin, Spectra of γ-ray cascades using DANCE array at the LANSCE-LANL facility. 97Zr; deduced photon strength function (γPSF), multiplicity distributions for resonances. Comparison with simulated γ spectra from DICEBOX calculations for the cascades from the capture state and neutron resonances, and with ENSDF/B-VII.1 evaluation. Maxwellian averaged cross section (MACS).
doi: 10.1103/PhysRevC.99.024318
2018CH25 Phys.Rev. C 97, 054318 (2018) R.J.Charity, K.W.Brown, J.Okolowicz, M.Ploszajczak, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa Spin alignment following inelastic scattering of 17Ne, lifetime of 16F, and its constraint on the continuum coupling strength NUCLEAR REACTIONS 9Be(17Ne, 17Ne'), E=62.9 MeV/nucleon [17Ne secondary beam from 150 MeV/nucleon 16O primary beam]; measured reaction products, Ep and Ip(θ) of first and second protons in sequential two-proton decay of the second excited state of Jπ=5/2- in 17Ne using the High Resolution Array (HiRA) at NSCL-MSU. 17Ne; deduced excitation-energy spectra reconstructed from 2p+15O events from excited state of 17Ne, magnetic substate probability distribution, distribution of the relative emission angle between the sequential protons, and spin alignment of 17Ne excited state. 16F; deduced invariant mass spectra, widths of the first 0-, 1-, 2-, and 3- resonances, and compared with calculations using shell model embedded in the continuum (SMEC). RADIOACTIVITY 16F(p)[from proton decay of excited state in 17Ne]; deduced width of the ground state from magnitude of the final-state interactions between the protons emitted by the excited state of 17Ne. Comparison with previous direct measurement of the width of the ground state.
doi: 10.1103/PhysRevC.97.054318
2018CH36 Phys.Rev. C 98, 014325 (2018) J.Chen, C.R.Hoffman, T.Ahn, K.Auranen, M.L.Avila, B.B.Back, D.W.Bardayan, D.Blankstein, P.Copp, D.Gorelov, B.P.Kay, S.A.Kuvin, J.P.Lai, D.G.McNeel, P.D.O'Malley, A.M.Rogers, D.Santiago-Gonzalez, J.P.Schiffer, J.Sethi, R.Talwar, J.R.Winkelbauer Experimental study of the effective nucleon-nucleon interaction using the 21F(d, p)22F reaction NUCLEAR REACTIONS 2H(21F, p), E=10 MeV/nucleon, [21F secondary beam from 9Be(22Ne, 21F), E=11 MeV/nucleon primary reaction using ATLAS-ANL facility]; measured Ep, Ip, 22Fe recoils, (22F)p-coin, and σ(θ) using HELIcal Orbit Spectrometer (HELIOS). 22F; deduced levels, J, π, spectroscopic factors and strengths, energy centroids and diagonal particle-hole two-body matrix elements (TBMEs) as function of angular momentum, N=14, 16 shell gaps. Distorted wave Born approximation (DWBA) method for theoretical σ(θ) calculations. Comparison with theoretical spectroscopic strengths by shell-model calculation using the USDA and USDB interactions.
doi: 10.1103/PhysRevC.98.014325
2018LI22 Phys.Rev. C 97, 044606 (2018) L.Li, Y.Zhang, Z.Li, N.Wang, Y.Cui, J.Winkelbauer Impact parameter smearing effects on isospin sensitive observables in heavy ion collisions NUCLEAR REACTIONS 112Sn(112Sn, X), E=35, 50, 70, 120 MeV/nucleon; calculated multiplicity and charge distributions, average impact parameter as function of mass, and averaged real impact parameter. 112Sn(112Sn, X), 124Sn(124Sn, X), 132Sn(124Sn, X), E<80 MeV/nucleon; calculated coalescence invariant single neutron to proton yield ratio, and coalescence invariant double neutron to proton yield ratio; deduced effect of impact parameter smearing on coalescence invariant double neutron to proton yield ratios using SkM* and SLy4 parameter sets. Improved quantum molecular dynamics (ImQMD) model. Comparison with experimental values.
doi: 10.1103/PhysRevC.97.044606
2018SA13 Phys.Rev.Lett. 120, 122503 (2018) D.Santiago-Gonzalez, K.Auranen, M.L.Avila, A.D.Ayangeakaa, B.B.Back, S.Bottoni, M.P.Carpenter, J.Chen, C.M.Deibel, A.A.Hood, C.R.Hoffman, R.V.F.Janssens, C.L.Jiang, B.P.Kay, S.A.Kuvin, A.Lauer, J.P.Schiffer, J.Sethi, R.Talwar, I.Wiedenhover, J.Winkelbauer, S.Zhu Probing the Single-Particle Character of Rotational States in 19F Using a Short-Lived Isomeric Beam NUCLEAR REACTIONS 2H(18F, p), E=14 MeV/nucleon; measured reaction products, Ep, Ip. 19F; deduced energy levels, J, π, relative spectroscopic factors, rotational band. Comparison with shell-model calculations.
doi: 10.1103/PhysRevLett.120.122503
2018TA12 Phys.Rev. C 97, 055801 (2018) R.Talwar, M.J.Bojazi, P.Mohr, K.Auranen, M.L.Avila, A.D.Ayangeakaa, J.Harker, C.R.Hoffman, C.L.Jiang, S.A.Kuvin, B.S.Meyer, K.E.Rehm, D.Santiago-Gonzalez, J.Sethi, C.Ugalde, J.R.Winkelbauer Experimental study of 38Ar + α reaction cross sections relevant to the 41Ca abundance in the solar system NUCLEAR REACTIONS 4He(38Ar, p), (38Ar, n), (38Ar, α'), E=133 MeV; measured energies and yields of reaction products, energy- and angle integrated σ(E) using multisampling ionization chamber (MUSIC) detector at the ATLAS-ANL facility. Comparison with previous experimental values, and with statistical model calculations using TALYS code. 41K(p, α)38Ar, 41Ca(n, α)38Ar, T=0.1-10.0 GK; deduced astrophysical reaction rates, and compared with statistical model calculations, and with REACLIB fits. Discussed relevance to 41Ca abundance in the solar system.
doi: 10.1103/PhysRevC.97.055801
2017BR07 Phys.Rev. C 95, 044326 (2017) K.W.Brown, R.J.Charity, J.M.Elson, W.Reviol, L.G.Sobotka, W.W.Buhro, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa Proton-decaying states in light nuclei and the first observation of 17Na NUCLEAR REACTIONS 9Be(17Ne, 17Na), (17Ne, 17Ne), (17Ne, 16F), E=58 MeV/nucleon, [secondary 17Ne beam from 9Be(20Ne, X), E=170 MeV/nucleon primary reaction at NSCL-MSU accelerator facility]; 9Be(9C, 9C), (9C, 9B), (9C, 8B), E=68 MeV/nucleon, [secondary 9C beam from 9Be(16O, X), E=150 MeV/nucleon primary reaction]; measured charged-particle reaction products using HiRA array of 14 ΔE-E telescopes, and γ rays by CAESAR array of 158 CsI(Na), (particle)γ-coin; analyzed invariant mass spectra, R-matrix fits. 17Na, 17Ne, 16F, 9C, 8,9B; deduced levels, upper limit of mass for 17Na, proton unbound levels, widths, J, π, three-proton decay of 17Na, one- and two-proton decay branches of other nuclei. First identification of unbound 17Na nucleus.
doi: 10.1103/PhysRevC.95.044326
2017KU24 Phys.Rev. C 96, 041301 (2017) S.A.Kuvin, A.H.Wuosmaa, C.J.Lister, M.L.Avila, C.R.Hoffman, B.P.Kay, D.G.McNeel, C.Morse, E.A.McCutchan, D.Santiago-Gonzalez, J.R.Winkelbauer α decay of the T = 1, 2+ state in 10B and isospin symmetry breaking in the A = 10 triplet NUCLEAR REACTIONS 1H(10B, 10B'), E=10 MeV/nucleon; measured Ep, Ip, ΔE-E particle-identification spectra for α, 6Li and 10B particles, p(10Be)-, pα(6Li)-coin, angular distributions of the 1740-, 2154- and 3587-keV states for protons and for p(10B) coincidences, α-decay branching ratio of the 5164-keV state in 10B using HELIOS spectrometer at ATLAS-ANL facility. 10B; deduced levels, partial Γα and Γγ, B(E2) for the 5164-keV state. Comparison with B(E2) for 10Be and 10C, previous experimental results, and with ab initio Green's function Monte Carlo (GFMC) calculations using realistic three-nucleon Hamiltonians.
doi: 10.1103/PhysRevC.96.041301
2017WU03 Phys.Rev. C 95, 014310 (2017) A.H.Wuosmaa, S.Bedoor, K.W.Brown, W.W.Buhro, Z.Chajecki, R.J.Charity, W.G.Lynch, J.Manfredi, S.T.Marley, D.G.McNeel, A.S.Newton, D.V.Shetty, R.H.Showalter, L.G.Sobotka, M.B.Tsang, J.R.Winkelbauer, R.B.Wiringa Ground-state properties of 5H from the 6He (d, 3He) 5H reaction NUCLEAR REACTIONS 2H(6He, 3He), (6He, t), E=55 MeV/nucleon, [secondary 6He beam from 9Be(18O, X), E=120 MeV/nucleon and using A1900 fragment separator at NSCL-MSU facility]; measured particle identification (PID) spectra, kinetic-energy spectra of low-energy 3He and 3H particles using High Resolution Array (HiRA) of charged-particle-detector telescopes and CsI(Tl) scintillator crystals; deduced correlations between E(3He) and E(3H), and E(3H) and E(4He), Q-value dependence of cross sections from DWBA calculations, 3H recoil-energy distributions from the decay of 5H, beam-like recoils and two-neutron correlations. 5H, 5He; deduced energies and widths of resonances corresponding to the ground state. Comparison with previous experimental results, shell-model and ab initio nuclear-structure calculations. COMPILATION 5H; compiled theoretical and previous (1968-2005) experiments for identification, and results of resonance energy and width of ground-state resonance of 5H.
doi: 10.1103/PhysRevC.95.014310
2016CO12 Phys.Rev. C 94, 011601 (2016) D.D.S.Coupland, M.Youngs, Z.Chajecki, W.G.Lynch, M.B.Tsang, Y.X.Zhang, M.A.Famiano, T.K.Ghosh, B.Giacherio, M.A.Kilburn, Jenny Lee, H.Liu, F.Lu, P.Morfouace, P.Russotto, A.Sanetullaev, R.H.Showalter, G.Verde, J.Winkelbauer Probing effective nucleon masses with heavy-ion collisions NUCLEAR REACTIONS 124Sn(124Sn, X), 112Sn(112Sn, X), E=50, 120 MeV/nucleon; measured free neutron and proton spectra, coalescence invariant (CI) neutron and proton spectra using Large Area Neutron Array (LANA) for neutrons and Large Area Silicon Strip Array (LASSA) for protons at NSCL-MSU; deduced differential cross sections. Comparison with calculations using quantum molecular dynamics (QMD) transport model with standard Skyrme interactions (ImQMD-Sky).
doi: 10.1103/PhysRevC.94.011601
2016ME07 Phys.Rev. C 93, 035805 (2016) Z.Meisel, S.George, S.Ahn, D.Bazin, B.A.Brown, J.Browne, J.F.Carpino, H.Chung, R.H.Cyburt, A.Estrade, M.Famiano, A.Gade, C.Langer, M.Matos, W.Mittig, F.Montes, D.J.Morrissey, J.Pereira, H.Schatz, J.Schatz, M.Scott, D.Shapira, K.Sieja, K.Smith, J.Stevens, W.Tan, O.Tarasov, S.Towers, K.Wimmer, J.R.Winkelbauer, J.Yurkon, R.G.T.Zegers Time-of-flight mass measurements of neutron-rich chromium isotopes up to N=40 and implications for the accreted neutron star crust ATOMIC MASSES 59,60,61,62,63,64Cr; measured mass excesses by time-of-flight (TOF) method using 9Be(82Se, X), E=140 MeV/nucleon for production of Si to Zn isotopes and A1900 fragment separator and S800 spectrograph for fragment separation and analysis at NSCL-MSU. TOF versus mass contour plot obtained for Ar (A=44-49), K (A=47-52), Ca (A=49-55), Sc (A=52-58), Ti (A=54-60), V (A=57-63), Cr (A=59-66), Mn (A=62-70) and Fe (A=64-71) isotopes. Analyzed S(2n) trends and compared to AME-2012. Comparison with state-of-the-art shell-model calculations using modified Lenzi-Nowacki-Poves-Sieja interaction in the fp shell, and with AME-2012 data. Mass of 64Cr used in accreted neutron star crust network calculations, and deduced reduction in strength depth of electron-capture heating from A=64 isobaric chain. NUCLEAR REACTIONS 9Be(82Se, X), E=140 MeV/nucleon; measured time-of-flight, energy loss, fragment yields of 150 isotopes from Si to Zn using A1900 fragment separator and S800 spectrograph at NSCL-MSU.
doi: 10.1103/PhysRevC.93.035805
2016RU03 Phys.Rev. C 94, 034608 (2016) P.Russotto, S.Gannon, S.Kupny, P.Lasko, L.Acosta, M.Adamczyk, A.Al-Ajlan, M.Al-Garawi, S.Al-Homaidhi, F.Amorini, L.Auditore, T.Aumann, Y.Ayyad, Z.Basrak, J.Benlliure, M.Boisjoli, K.Boretzky, J.Brzychczyk, A.Budzanowski, C.Caesar, G.Cardella, P.Cammarata, Z.Chajecki, M.Chartier, A.Chbihi, M.Colonna, M.D.Cozma, B.Czech, E.De Filippo, M.Di Toro, M.Famiano, I.Gasparic, L.Grassi, C.Guazzoni, P.Guazzoni, M.Heil, L.Heilborn, R.Introzzi, T.Isobe, K.Kezzar, M.Kis, A.Krasznahorkay, N.Kurz, E.La Guidara, G.Lanzalone, A.Le Fevre, Y.Leifels, R.C.Lemmon, Q.F.Li, I.Lombardo, J.Lukasik, W.G.Lynch, P.Marini, Z.Matthews, L.May, T.Minniti, M.Mostazo, A.Pagano, E.V.Pagano, M.Papa, P.Pawlowski, S.Pirrone, G.Politi, F.Porto, W.Reviol, F.Riccio, F.Rizzo, E.Rosato, D.Rossi, S.Santoro, D.G.Sarantites, H.Simon, I.Skwirczynska, Z.Sosin, L.Stuhl, W.Trautmann, A.Trifiro, M.Trimarchi, M.B.Tsang, G.Verde, M.Veselsky, M.Vigilante, Y.Wang, A.Wieloch, P.Wigg, J.Winkelbauer, H.H.Wolter, P.Wu, S.Yennello, P.Zambon, L.Zetta, M.Zoric Results of the ASY-EOS experiment at GSI: The symmetry energy at suprasaturation density NUCLEAR REACTIONS 197Au(197Au, X), E=400 MeV/nucleon; measured directed and elliptic flow of neutrons and charged particles as a function of rapidity and transverse momentum in central and semi-central collisions using Large Area Neutron Detector (LAND), parts of CHIMERA multidetector, ALADIN Time-of-flight Wall, KRATTA telescopes, and Washington University Microball detector as part of ASY-EOS experimental campaign at GSI facility; deduced density dependence of nuclear symmetry energy, equation-of-state (EOS) of neutron-rich matter. Comparison with UrQMD transport model calculations.
doi: 10.1103/PhysRevC.94.034608
2015BR11 Phys.Rev. C 92, 034329 (2015) K.W.Brown, R.J.Charity, L.G.Sobotka, L.V.Grigorenko, T.A.Golubkova, S.Bedoor, W.W.Buhro, Z.Chajecki, J.M.Elson, W.G.Lynch, J.Manfredi, D.G.McNeel, W.Reviol, R.Shane, R.H.Showalter, M.B.Tsang, J.R.Winkelbauer, A.H.Wuosmaa Interplay between sequential and prompt two-proton decay from the first excited state of 16Ne NUCLEAR REACTIONS 9Be(17Ne, 16Ne), E=57.6 MeV/nucleon; analyzed results of experimental measurements reported in their 2014Br19 work carried out at NSCL-MSU. 16Ne; analyzed relative energy spectra and few-body correlations of 14O+2p and 13N+3p events; deduced level energies and widths of g.s. and first 2+ state from kinematic analysis of 14O+p+p events, and those of higher levels from analysis of the 13N+p+p+p events. Sequential and diprotonlike decays deduced from correlation pattern reproduced in three-body 14O+p+p calculations. 15F, 14O, 13N; deduced levels, J, π from particle decays of states in 16Ne.
doi: 10.1103/PhysRevC.92.034329
2015CH12 Phys.Rev. C 91, 024610 (2015) R.J.Charity, J.M.Elson, J.Manfredi, R.Shane, L.G.Sobotka, Z.Chajecki, D.Coupland, H.Iwasaki, M.Kilburn, Jenny Lee, W.G.Lynch, A.Sanetullaev, M.B.Tsang, J.Winkelbauer, M.Youngs, S.T.Marley, D.V.Shetty, A.H.Wuosmaa Spin alignment of excited projectiles due to target spin-flip interactions NUCLEAR REACTIONS 9Be(6Li, X), E=36.6 MeV/nucleon; 9Be(7Be, X), E=65.2 MeV/nucleon, [6Li, 7Be secondary beams from 9Be(16O, X), E=150 MeV/nucleon primary reaction]; measured particle spectra, angular distributions of reaction products using HiRA array of ΔE-E telescopes at NSCL-MSU facility; deduced sequential breakup of projectiles, spin alignments, and molecular structure of 9Be.
doi: 10.1103/PhysRevC.91.024610
2015ME01 Phys.Rev.Lett. 114, 022501 (2015) Z.Meisel, S.George, S.Ahn, J.Browne, D.Bazin, B.A.Brown, J.F.Carpino, H.Chung, R.H.Cyburt, A.Estrade, M.Famiano, A.Gade, C.Langer, M.Matos, W.Mittig, F.Montes, D.J.Morrissey, J.Pereira, H.Schatz, J.Schatz, M.Scott, D.Shapira, K.Smith, J.Stevens, W.Tan, O.Tarasov, S.Towers, K.Wimmer, J.R.Winkelbauer, J.Yurkon, R.G.T.Zegers Mass Measurements Demonstrate a Strong N=28 Shell Gap in Argon ATOMIC MASSES 48,49Ar; measured time of flight; deduced masses, N=28 closed shell, problems of shell model calculations.
doi: 10.1103/PhysRevLett.114.022501
2015ME08 Phys.Rev.Lett. 115, 162501 (2015) Z.Meisel, S.George, S.Ahn, D.Bazin, B.A.Brown, J.Browne, J.F.Carpino, H.Chung, A.L.Cole, R.H.Cyburt, A.Estrade, M.Famiano, A.Gade, C.Langer, M.Matos, W.Mittig, F.Montes, D.J.Morrissey, J.Pereira, H.Schatz, J.Schatz, M.Scott, D.Shapira, K.Smith, J.Stevens, W.Tan, O.Tarasov, S.Towers, K.Wimmer, J.R.Winkelbauer, J.Yurkon, R.G.T.Zegers Mass Measurement of 56Sc Reveals a Small A=56 Odd-Even Mass Staggering, Implying a Cooler Accreted Neutron Star Crust ATOMIC MASSES 52,53,54,55,56,57Sc; measured rigidity-corrected time-of-flight distributions; deduced atomic mass excesses. Comparison with AME 2012, theoretical models.
doi: 10.1103/PhysRevLett.115.162501
2014BR15 Phys.Rev. C 90, 027304 (2014) K.W.Brown, W.W.Buhro, R.J.Charity, J.M.Elson, W.Reviol, L.G.Sobotka, Z.Chajecki, W.G.Lynch, J.Manfredi, R.Shane, R.H.Showalter, M.B.Tsang, D.Weisshaar, J.R.Winkelbauer, S.Bedoor, A.H.Wuosmaa Two-proton decay from the isobaric analog state in 8B NUCLEAR REACTIONS 9Be(9C, 8B), E=68 MeV/nucleon, [9C secondary beam from 9Be(16O, X), E=150 MeV/nucleon primary fragmentation reaction]; measured Ep, Ip, 6Li-p-p correlated events from IAS of 8C g.s. in 8B by analyzing complete kinematics of 2p+6Li decay products, gamma decay of IAS in 6Li; deduced isospin-allowed 2p decay between isobaric analog states, three-body energy and angular correlations, branching ratios. Experiments carried out at NSCL-MSU facility using A1900 fragment separator and High Resolution Array of Si-CsI(Tl) telescopes.
doi: 10.1103/PhysRevC.90.027304
2014BR19 Phys.Rev.Lett. 113, 232501 (2014) K.W.Brown, R.J.Charity, L.G.Sobotka, Z.Chajecki, L.V.Grigorenko, I.A.Egorova, Yu.L.Parfenova, M.V.Zhukov, S.Bedoor, W.W.Buhro, J.M.Elson, W.G.Lynch, J.Manfredi, D.G.McNeel, W.Reviol, R.Shane, R.H.Showalter, M.B.Tsang, J.R.Winkelbauer, A.H.Wuosmaa Observation of Long-Range Three-Body Coulomb Effects in the Decay of 16Ne RADIOACTIVITY 16Ne(2p) [from Be(17Ne, X), E=57.6 MeV/nucleon]; measured decay products, Ep, Ip; deduced resonance width limit, correlations between the momenta of the three decay products, dependence on the long-range nature of the Coulomb interaction. Comparison with theoretical calculations, available data.
doi: 10.1103/PhysRevLett.113.232501
2014CA42 Phys.Rev. C 90, 054616 (2014) N.L.Calleya, S.R.Souza, B.V.Carlson, R.Donangelo, W.G.Lynch, M.B.Tsang, J.R.Winkelbauer Influence of the density of states on the odd-even staggering in the charge distribution of the emitted fragments in nuclear heavy-ion collisions NUCLEAR STRUCTURE 40Ca, 80Zr; calculated effect of density of states on odd-even staggering in charge distribution of fragments emitted in the breakup of 40Ca and 80Zr nuclei at E=1.5-4 MeV/nucleon excitation energies. Statistical Multifragmentation Model (SMM) considering pairing gaps for state densities.
doi: 10.1103/PhysRevC.90.054616
2014WI07 Phys.Rev. C 90, 064615 (2014) K.Wimmer, D.Bazin, A.Gade, J.A.Tostevin, T.Baugher, Z.Chajecki, D.Coupland, M.A.Famiano, T.K.Ghosh, G.F.Grinyer, M.E.Howard, M.Kilburn, W.G.Lynch, B.Manning, K.Meierbachtol, P.Quarterman, A.Ratkiewicz, A.Sanetullaev, R.H.Showalter, S.R.Stroberg, M.B.Tsang, D.Weisshaar, J.Winkelbauer, R.Winkler, M.Youngs Elastic breakup cross sections of well-bound nucleons NUCLEAR REACTIONS 9Be(28Mg, 27Na), E=93 MeV/nucleon, [28Mg secondary beam from 9Be(40ar, X), E=140 MeV/nucleon primary reaction]; measured fragment spectra, (light charged particles)fragment-coin using A1900 fragment separator, S800 magnetic spectrograph and high-resolution array HiRA at NSCL-MSU facility; deduced missing-mass spectra of the one-proton removal reaction residues 7Be, 8B and 27Na, and percentage contributions to proton removal cross section from the elastic and inelastic nucleon removal mechanisms. Comparison of experimental breakup fractions with eikonal reaction model predictions, and previous experimental results.
doi: 10.1103/PhysRevC.90.064615
2013WI09 Phys.Rev. C 88, 044613 (2013) J.R.Winkelbauer, S.R.Souza, M.B.Tsang Influence of secondary decay on odd-even staggering of fragment cross sections NUCLEAR REACTIONS 9Be(40Ca, X), (48Ca, X), (58Ni, X), (64Ni, X), E=140 MeV/nucleon; calculated Z distribution of fragments, Odd-even staggering (OES) behavior related to binding energies. Improved statistical multifragmentation model (ISMM) with Weisskopf-Ewing statistical emission formalism. Comparison with experimental data.
doi: 10.1103/PhysRevC.88.044613
2012EG03 Phys.Rev.Lett. 109, 202502 (2012) I.A.Egorova, R.J.Charity, L.V.Grigorenko, Z.Chajecki, D.Coupland, J.M.Elson, T.K.Ghosh, M.E.Howard, H.Iwasaki, M.Kilburn, Jenny Lee, W.G.Lynch, J.Manfredi, S.T.Marley, A.Sanetullaev, R.Shane, D.V.Shetty, L.G.Sobotka, M.B.Tsang, J.Winkelbauer, A.H.Wuosmaa, M.Youngs, M.V.Zhukov Democratic Decay of 6Be Exposed by Correlations NUCLEAR REACTIONS Be(7Be, X)6Be, E=70 MeV/nucleon; measured reaction products, Eα, Iα, Ep, Ip; deduced three-body energy-angular correlations, three-body democratic decay. Comparison with a three-cluster-model calculations.
doi: 10.1103/PhysRevLett.109.202502
2012WI06 Phys.Rev. C 85, 051603 (2012) K.Wimmer, D.Bazin, A.Gade, J.A.Tostevin, T.Baugher, Z.Chajecki, D.Coupland, M.A.Famiano, T.K.Ghosh, G.F.Grinyer, R.Hodges, M.E.Howard, M.Kilburn, W.G.Lynch, B.Manning, K.Meierbachtol, P.Quarterman, A.Ratkiewicz, A.Sanetullaev, S.R.Stroberg, M.B.Tsang, D.Weisshaar, J.Winkelbauer, R.Winkler, M.Youngs Probing elastic and inelastic breakup contributions to intermediate-energy two-proton removal reactions NUCLEAR REACTIONS 9Be(28Mg, 26Ne), [28Mg secondary beam from 9Be(40Ar, X), E=140 MeV/nucleon primary reaction], E=93 MeV/nucleon; measured particle spectra, energy loss, time of flight, (26Ne)(particle)(particle)-coin, relative cross sections, σ(θ), relative and absolute yields using Coupled Cyclotron facility at NSCL; deduced missing mass spectrum for 26Ne and two proton coincidence events. Importance of stripping, diffraction-stripping, and diffraction two-proton removal mechanisms. Comparison with predictions of reaction model based on eikonal dynamics, and sd-shell structure amplitudes.
doi: 10.1103/PhysRevC.85.051603
2012WI10 Phys.Rev.Lett. 109, 202505 (2012) K.Wimmer, D.Bazin, A.Gade, J.A.Tostevin, T.Baugher, Z.Chajecki, D.Coupland, M.A.Famiano, T.K.Ghosh, G.F.Grinyer, R.Hodges, M.E.Howard, M.Kilburn, W.G.Lynch, B.Manning, K.Meierbachtol, P.Quarterman, A.Ratkiewicz, A.Sanetullaev, E.C.Simpson, S.R.Stroberg, M.B.Tsang, D.Weisshaar, J.Winkelbauer, R.Winkler, M.Youngs Correlations in Intermediate Energy Two-Proton Removal Reactions NUCLEAR REACTIONS 9Be(28Mg, X)26Ne, E=93 MeV/nucleon; measured reaction products; deduced σ(E), σ(θ, E), Dalitz plots. Comparison with calculations and available data.
doi: 10.1103/PhysRevLett.109.202505
2011CH32 Phys.Rev. C 84, 014320 (2011) R.J.Charity, J.M.Elson, J.Manfredi, R.Shane, L.G.Sobotka, B.A.Brown, Z.Chajecki, D.Coupland, H.Iwasaki, M.Kilburn, J.Lee, W.G.Lynch, A.Sanetullaev, M.B.Tsang, J.Winkelbauer, M.Youngs, S.T.Marley, D.V.Shetty, A.H.Wuosmaa, T.K.Ghosh, M.E.Howard Investigations of three-, four-, and five-particle decay channels of levels in light nuclei created using a 9C beam NUCLEAR REACTIONS 9Be(9C, X), E=70 MeV/nucleon, [secondary 9C beam from 9Be(16O, X), E=150 MeV/nucleon primary beam]; measured particle spectra using HiRA array, angular correlations between the particles in particle-decay channels. 8Be, 7,8,9B, 8,10C; deduced levels, width, J, π, isospin, branching ratios, excitation spectra of outgoing particles from many-particle decays of ground and excited states.
doi: 10.1103/PhysRevC.84.014320
2011CH53 Phys.Rev. C 84, 051308 (2011) R.J.Charity, J.M.Elson, J.Manfredi, R.Shane, L.G.Sobotka, Z.Chajecki, D.Coupland, H.Iwasaki, M.Kilburn, J.Lee, W.G.Lynch, A.Sanetullaev, M.B.Tsang, J.Winkelbauer, M.Youngs, S.T.Marley, D.V.Shetty, A.H.Wuosmaa, T.K.Ghosh, M.E.Howard Isobaric multiplet mass equation for A=7 and 8 ATOMIC MASSES 7,8He, 7,8Li, 7,8Be, 7,8B, 8C; analyzed deviations from isobaric multiplet mass equation (IMME) for A=7, T=3/2 quartet and A=8, T=2 quintet; deduced coefficients from quadric, cubic, and quartic fits.
doi: 10.1103/PhysRevC.84.051308
2011TS01 Prog.Part.Nucl.Phys. 66, 400 (2011) M.B.Tsang, Z.Chajecki, D.Coupland, P.Danielewicz, F.Famiano, R.Hodges, M.Kilburn, F.Lu, W.G.Lynch, J.Winkelbauer, M.Youngs, Y.X.Zhang Constraints on the density dependence of the symmetry energy from heavy-ion collisions
doi: 10.1016/j.ppnp.2011.01.041
2010BA06 Phys.Rev.Lett. 104, 132501 (2010) B.B.Back, S.I.Baker, B.A.Brown, C.M.Deibel, S.J.Freeman, B.J.DiGiovine, C.R.Hoffman, B.P.Kay, H.Y.Lee, J.C.Lighthall, S.T.Marley, R.C.Pardo, K.E.Rehm, J.P.Schiffer, D.V.Shetty, A.W.Vann, J.Winkelbauer, A.H.Wuosmaa First Experiment with HELIOS: The Structure of 13B NUCLEAR REACTIONS 12B(d, p), E=75 MeV; measured Ep, Ip, recoil ions; deduced σ(θ), spectroscopic factors, constrained J, π.
doi: 10.1103/PhysRevLett.104.132501
2010CH42 Phys.Rev. C 82, 041304 (2010) R.J.Charity, J.M.Elson, J.Manfredi, R.Shane, L.G.Sobotka, Z.Chajecki, D.Coupland, H.Iwasaki, M.Kilburn, J.Lee, W.G.Lynch, A.Sanetullaev, M.B.Tsang, J.Winkelbauer, M.Youngs, S.T.Marley, D.V.Shetty, A.H.Wuosmaa, T.K.Ghosh, M.E.Howard 2p-2p decay of 8C and isospin-allowed 2p decay of the isobaric-analog state in 8B NUCLEAR REACTIONS 9Be(9C, 8B), [9C beam from 9Be(16O, X) fragmentation], E=70 MeV/nucleon; measured Ep, Ip, 6Li-p-p correlated events from an excited state (IAS of 8C g.s.) in 8B by analyzing complete kinematics of 2p+6Li decay products; deduced 2p decay (isospin-allowed 2p decay between isobaric analog states). 9Be(9C, 8C), [9C beam from 9Be(16O, X) fragmentation], E=70 MeV/nucleon; measured Ep, Ip, 6Be-p-p and α-p-p-p-p correlated events from 8C g.s. by analyzing complete kinematics of 2p+6Be and α+2p+2p events. RADIOACTIVITY 8C(2p); measured Ep, Ip, Eα, Iα, α-p-p-p-p coin, α-p-p coin from the decay of 8C g.s.
doi: 10.1103/PhysRevC.82.041304
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