NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = P.A.DeYoung Found 123 matches. Showing 1 to 100. [Next]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
2023TS04 Phys.Rev. C 107, 035808 (2023) A.Tsantiri, A.Palmisano-Kyle, A.Spyrou, P.Mohr, H.C.Berg, P.A.DeYoung, A.C.Dombos, P.Gastis, E.C.Good, C.M.Harris, S.N.Liddick, S.M.Lyons, O.Olivas-Gomez, G.Owens-Fryar, J.Pereira, A.L.Richard, A.Simon, M.K.Smith, R.G.T.Zegers Cross-section measurement of the 82Kr(p, γ)83Rb reaction in inverse kinematics NUCLEAR REACTIONS 1H(82Kr, γ)83Rb, E=3.1, 3.4, 3.7 MeV/nucleon; measured Eγ, Iγ, γ-sum, total absorption spectra; deduced σ(E), astrophysical S-factor. Comparison to NON-SMOKER and TALYS statistical model calculations. Hydrogen gas cell surrounded by the Summing NaI(Tl) (SuN) detector at ReA reaccelerator facility (NSCL).
doi: 10.1103/PhysRevC.107.035808
2022KU08 Phys.Rev. C 105, 034314 (2022) A.N.Kuchera, D.Bazin, T.Phan, J.A.Tostevin, M.Babo, T.Baumann, P.C.Bender, M.Bowry, J.Bradt, J.Brown, P.A.DeYoung, B.Elman, J.E.Finck, A.Gade, G.F.Grinyer, M.D.Jones, B.Longfellow, E.Lunderberg, T.H.Redpath, W.F.Rogers, K.Stiefel, M.Thoennessen, D.Votaw, D.Weisshaar, K.Whitmore, R.B.Wiringa Mirror nucleon removal reactions in p-shell nuclei NUCLEAR REACTIONS 9Be(7Li, 6He), (7Li, 6Li), (9Li, 8Li), (10Be, 9Li) E=80 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced partial σ to the individual final states of the daughter nuclei. Comparison to fully microscopic variational Monte Carlo (VMC) model calculations. Systematics of partial σ for nucleon removal reactions in mirror pairs. CAESAR array of 170 CsI(Te) scintillators. Secondaries beam produced in 9Be(16O, X), E=150 MeV/nucleon reaction and delivered to the target via A1900 fragment separator (NSCL-MSU).
doi: 10.1103/PhysRevC.105.034314
2022PA20 Phys.Rev. C 105, 065804 (2022) A.Palmisano-Kyle, A.Spyrou, P.A.DeYoung, A.Dombos, P.Gastis, O.Olivas-Gomez, C.Harris, S.Liddick, S.M.Lyons, J.Pereira, A.L.Richard, A.Simon, M.K.Smith, A.Tsantiri, R.Zegers Constraining the astrophysical p process: Cross section measurement of the 84Kr(p, γ)85Rb reaction in inverse kinematics NUCLEAR REACTIONS 1H(84Kr, γ), E=2.8, 3.1, 3.4, 3.7 MeV/nucleon; measured Eγ, Ιγ, total absorption; deduced σ(E). Discussed the astrophysical impact, in particular on the 78Kr p-nuclei path. Comparison to NON-SMOKER and TALYS calculations and previous experimental data. Summing NaI(Tl) (SuN) detector and hydrogen-filled gas-cell target at Michigan State University ReAccelerator (ReA) facility (NSCL).
doi: 10.1103/PhysRevC.105.065804
2021CH47 Phys.Rev. C 104, 034313 (2021) D.Chrisman, A.N.Kuchera, T.Baumann, A.Blake, B.A.Brown, J.Brown, C.Cochran, P.A.DeYoung, J.E.Finck, N.Frank, P.Gueye, H.Karrick, H.Liu, J.McDonaugh, T.Mix, B.Monteagudo, T.H.Redpath, W.F.Rogers, R.Seaton-Todd, A.Spyrou, K.Stiefel, M.Thoennessen, J.A.Tostevin, D.Votaw Neutron-unbound states in 31Ne NUCLEAR REACTIONS 9Be(33Mg, X)31Ne, E=89 MeV/nucleon; measured reaction fragments and neutrons detected by the MoNa-LISA-Sweeper array at NSCL-MSU cyclotron facility; reconstructed decay energy for 30Ne+n from invariant mass spectroscopy. 31Ne; deduced levels, neutron-unbound states from the two-body decay-energy spectrum. Comparison with shell-model calculations using FSU interaction within the NUSHELLX code, combined with two-proton knockout cross-section calculations using the eikonal reaction theory. Relevance to 31Ne being a prime example of a halo nucleus in the island of inversion.
doi: 10.1103/PhysRevC.104.034313
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
2020VO08 Phys.Rev. C 102, 014325 (2020) D.Votaw, P.A.DeYoung, T.Baumann, A.Blake, J.Boone, J.Brown, D.Chrisman, J.E.Finck, N.Frank, J.Gombas, P.Gueye, J.Hinnefeld, H.Karrick, A.N.Kuchera, H.Liu, B.Luther, F.Ndayisabye, M.Neal, J.Owens-Fryar, J.Pereira, C.Persch, T.Phan, T.Redpath, W.F.Rogers, S.Stephenson, K.Stiefel, C.Sword, A.Wantz, M.Thoennessen Low-lying level structure of the neutron-unbound N=7 isotones NUCLEAR REACTIONS 9Be(11Be, 8He), (11Be, 9Li), E=44 MeV/nucleon; 9Be(12B, 8He), (12B, 9Li), E=45 MeV/nucleon, [secondary 11Be and 12B beams from 9Be(16O, X), E=120 MeV/nucleon, followed by separation of ions of interest using A1900 Fragment Separator at the Coupled Cyclotron Facility of NSCL-MSU]; measured E(n), I(n), charged-particles, (particle)n-coin using the MoNA-LISA detector array for neutron detection and cathode readout drift chambers (CRDCs) for charged particles; deduced decay energy spectra of 9He and 10Li and neutron-unbound states. 9He, 10Li; deduced levels, resonances, widths, J, π, l-values of neutrons from the resonances in 9He and 10Li. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.102.014325
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
2019SW04 Phys.Rev. C 100, 034323 (2019) C.Sword, J.Brett, T.Baumann, B.A.Brown, N.Frank, J.Herman, M.D.Jones, H.Karrick, A.N.Kuchera, M.Thoennessen, J.A.Tostevin, M.Tuttle-Timm, P.A.DeYoung Observation of three-neutron sequential emission from 25O* NUCLEAR REACTIONS 2H(27Ne, 2p)25O*, E=101.3 MeV/nucleon, [secondary 27Ne beam mixed with other light nuclei from fragmentation of 140 MeV/nucleon 48Ca primary beam from the Coupled Cyclotron Facility, and separated by A1900 Fragment Separator at NSCL-MSU]; measured E(n), 22O fragments, (22O)n-coin, four-body (22O+3n), three-body (22O+2n), and two-body (22O+1n) ungated and gated decay-energy and hit-multiplicity spectra using the Modular Neutron Array (MoNA) and Large multi-Institutional Scintillator Array (LISA); deduced mass of 25O from the invariant of the sum of the energy-momentum four-vectors of an 22O fragment and the three associated neutrons emitted from the excited states of 25O. 25O; deduced neutron-unbound levels, resonances, decay via three-neutron sequential emission to levels in 24O, 23O and 22O. Comparison with shell-model and eikonal calculations for two-proton removal reaction from 27Ne. NUCLEAR STRUCTURE 23,24,25O; calculated levels using Gamow shell model with the density-matrix renormalization-group (GSM-DMRG) method, and a continuum shell model (CSM). Comparison with experimental data.
doi: 10.1103/PhysRevC.100.034323
2017AG09 Phys.Rev. C 96, 024616 (2017) E.F.Aguilera, E.Martinez-Quiroz, P.Amador-Valenzuela, D.Lizcano, A.Garcia-Flores, J.J.Kolata, A.Roberts, G.V.Rogachev, G.F.Peaslee, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, Y.Chen, H.Jiang, M.Febbraro, P.A.DeYoung, T.L.Belyaeva Sub-barrier fusion of weakly bound 6Li with 58Ni NUCLEAR REACTIONS 58Ni(6Li, X), E=10.8, 11.5, 12.7, 13.2, 13.7, 14.4 MeV, [secondary pure 6Li beam from 3He(6Li, 6Li), E=31-38 MeV reaction]; measured σ(θ, E) for evaporated protons at the University of Notre Dame FN tandem accelerator facility; deduced proton multiplicities, fusion σ(E) and total reaction σ(E). Proton angular distributions compared with statistical model calculations using PACE2 code. Comparison of fusion σ(E) data with previous experimental data for this reaction and for the 6Li+59Co, 6Li+64Zn, and 6Li+64Ni systems. Comparison with theoretical calculations using one-dimensional barrier penetration model (BPM) and coupled-channel (CC) method using optical model potentials.
doi: 10.1103/PhysRevC.96.024616
2017JO06 Phys.Rev. C 95, 044323 (2017), Erratum Phys.Rev. C 96, 059902 (2017) M.D.Jones, T.Baumann, J.Brett, J.Bullaro, P.A.DeYoung, J.E.Finck, N.Frank, K.Hammerton, J.Hinnefeld, Z.Kohley, A.N.Kuchera, J.Pereira, A.Rabeh, J.K.Smith, A.Spyrou, S.L.Stephenson, K.Stiefel, M.Tuttle-Timm, R.G.T.Zegers, M.Thoennessen Neutron-unbound excited states of 23N NUCLEAR REACTIONS 2H(24O, p)23N, E=83.4 MeV/nucleon, [secondary 24O beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction at NSCL-MSU accelerator facility]; measured reaction products and identified via ΔE vs. time-of-flight measurement, neutron spectra from the decay of 23N excited states using MONA and LISA arrays of plastic scintillators; analyzed two-body decay energy spectrum for 22N+1n. 23N; deduced levels above S(n), J, π, S(n), S(2n), configurations; calculated levels, J, π using shell-model and several interactions.
doi: 10.1103/PhysRevC.95.044323
2017JO12 Phys.Rev. C 96, 054322 (2017) M.D.Jones, K.Fossez, T.Baumann, P.A.DeYoung, J.E.Finck, N.Frank, A.N.Kuchera, N.Michel, W.Nazarewicz, J.Rotureau, J.K.Smith, S.L.Stephenson, K.Stiefel, M.Thoennessen, R.G.T.Zegers Search for excited states in 25O NUCLEAR REACTIONS 2H(24O, 25O), E=83.4 MeV/nucleon, [secondary 24O beam from 9Be(48Ca, X) primary reaction using A1900 fragment separator at NSCL-MSU facility]; measured 24O particles by a position and energy sensitive charged particle detector and separated based on energy loss and time-of-flight, and neutrons from 25O decay by the MoNA-LISA detector array. 25O; deduced two-body (24O+n) decay energy spectrum by invariant-mass spectroscopy technique, neutron-unbound ground state, L-transfer, asymptotic normalization coefficients, cross section and width of a possible 1/2+ resonance above the ground state. Comparisons with previous experimental results, and with theoretical calculations using complex-energy Gamow Shell Model (GSM) and Density Matrix Renormalization Group (DMRG) method with a finite-range two-body interaction. NUCLEAR STRUCTURE 23,24,25,26,27,28O; calculated levels, J, π using complex-energy Gamow Shell Model (GSM) and Density Matrix Renormalization Group (DMRG) method with a finite-range two-body interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.96.054322
2016SM03 Nucl.Phys. A955, 27 (2016) J.K.Smith, T.Baumann, D.Bazin, J.Brown, P.A.DeYoung, N.Frank, M.D.Jones, Z.Kohley, B.Luther, B.Marks, A.Spyrou, S.L.Stephenson, M.Thoennessen, A.Volya Neutron correlations in the decay of the first excited state of 11Li NUCLEAR REACTIONS 9Be(13B, 11Li), E=71 MeV/nucleon; measured charged fragments using Sweeper high-field dipole magnet, En, In using MoNA-LISA array of plastic scintillators; deduced unnormalized three- and two-body 11Li-decay energy spectrum, 10Li resonances energy, width; calculated, simulated decay energy spectra, coincident energy spectra.
doi: 10.1016/j.nuclphysa.2016.05.023
2015JO05 Phys.Rev. C 91, 044312 (2015) M.D.Jones, Z.Kohley, T.Baumann, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, R.A.Haring-Kaye, A.N.Kuchera, B.Luther, S.Mosby, J.K.Smith, J.Snyder, A.Spyrou, S.L.Stephenson, M.Thoennessen Further insights into the reaction 14Be(CH2, X)10He NUCLEAR REACTIONS 2H(14Be, 10He), (14Be, 12He), E=59 MeV/nucleon, [14Be secondary beam from 9Be(18O, X), E=120 MeV/nucleon primary reaction using A1900 fragment separator]; measured particle spectra by ΔE-E detectors and neutron spectra by MONA array at NSCL-MSU facility; analyzed decay energy spectra and multiplicity distributions for 8He+n, 8He+2n 8He+4n, and 8He+2n with α removal. 10He; deduced resonance, no evidence for initial state effects based on the halo structure of the initial 14Be assuming a direct α-particle removal reaction. 12He; deduced no evidence for the existence of a low-lying (≤1 MeV) resonance in 12He.
doi: 10.1103/PhysRevC.91.044312
2015JO14 Phys.Rev. C 92, 051306 (2015) M.D.Jones, N.Frank, T.Baumann, J.Brett, J.Bullaro, P.A.DeYoung, J.E.Finck, K.Hammerton, J.Hinnefeld, Z.Kohley, A.N.Kuchera, J.Pereira, A.Rabeh, W.F.Rogers, J.K.Smith, A.Spyrou, S.L.Stephenson, K.Stiefel, M.Tuttle-Timm, R.G.T.Zegers, M.Thoennessen Two-neutron sequential decay of 24O NUCLEAR REACTIONS 2H(24O, 2n22O), E=83.4 MeV/nucleon, [24O secondary beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction at NSCL-MSU]; measured charged-particle spectra using position- and energy-sensitive detectors, E(n) and I(n) using MONA-LISA array, three-body decay energy, angular correlations. 24O; deduced level, resonance, l-transfer, width, evidence for two-neutron sequential decay from resonant state. 23O; deduced intermediate level, J, π through one-neutron decay of 24O resonant state. Comparison with di-neutron and phase-space model calculations for the three-body breakup.
doi: 10.1103/PhysRevC.92.051306
2015KO08 Phys.Rev. C 91, 034323 (2015) Z.Kohley, T.Baumann, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, B.Luther, E.Lunderberg, M.Jones, S.Mosby, J.K.Smith, A.Spyrou, M.Thoennessen Three-body correlations in the ground-state decay of 26O NUCLEAR REACTIONS 9Be(27F, 26O), E=82 MeV/nucleon, [27F secondary beam produced from projectile fragmentation of a 140 MeV/nucleon 48Ca primary beam]; measured (24O)nn-triple coin, three-body decay energy and angular correlations using MoNA-Sweeper setup at NSCL-MSU; deduced invariant mass and three-body correlations from the 26O ground-state resonance decay. Comparison with Monte-Carlo simulations using a phase-space, model, dineutron model, and three-body decay model. 26O; deduced 1σ upper limit of the ground-state resonance energy of 26O.
doi: 10.1103/PhysRevC.91.034323
2015KU04 Phys.Rev. C 91, 017304 (2015) A.N.Kuchera, A.Spyrou, J.K.Smith, T.Baumann, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, M.D.Jones, Z.Kohley, S.Mosby, W.A.Peters, M.Thoennessen Search for unbound 15Be states in the 3n+ 12Be channel NUCLEAR REACTIONS 9Be(17C, 15Be), E=55 MeV/nucleon, [17C secondary beam from 9Be(22Ne, X) primary reaction]; measured particle spectra, (12Be)n-coin using MONA array at NSCL-MSU facility; reconstructed two-, three-, and four-body decay energies of the 12Be+ neutron system using invariant mass spectroscopy. 15Be; search for predicted unbound 3/2+ level proved inconclusive. In the best fit analysis, 15Be g.s. is unbound with respect to 12Be.
doi: 10.1103/PhysRevC.91.017304
2015MA62 Phys.Rev. C 92, 054320 (2015) B.R.Marks, P.A.DeYoung, J.K.Smith, T.Baumann, J.Brown, N.Frank, J.Hinnefeld, M.Hoffman, M.D.Jones, Z.Kohley, A.N.Kuchera, B.Luther, A.Spyrou, S.Stephenson, C.Sullivan, M.Thoennessen, N.Viscariello, S.J.Williams Population of 13Be in a nucleon exchange reaction NUCLEAR REACTIONS 9Be(13B, 13Be), E=71 MeV/nucleon, [secondary 13B beam from 9Be(18O, X), E=120 MeV/nucleon primary reaction]; measured E(n), I(n) from the decay of 13Be into 12B+n, decay energy spectrum reconstructed by invariant-mass method using A1900 fragment separator and MoNA-LISA array at NSCL-MSU. Nucleon (-1p, +1n) exchange reaction. 13Be; deduced levels, resonances, J, π, widths, relative populations. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.92.054320
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
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
2015RO16 Phys.Rev. C 92, 034316 (2015) W.F.Rogers, S.Garrett, A.Grovom, R.E.Anthony, A.Aulie, A.Barker, T.Baumann, J.J.Brett, J.Brown, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, A.Hamann, R.A.Haring-Kaye, J.Hinnefeld, A.R.Howe, N.T.Islam, M.D.Jones, A.N.Kuchera, J.Kwiatkowski, E.M.Lunderberg, B.Luther, D.A.Meyer, S.Mosby, A.Palmisano, R.Parkhurst, A.Peters, J.Smith, J.Snyder, A.Spyrou, S.L.Stephenson, M.Strongman, B.Sutherland, N.E.Taylor, M.Thoennessen Unbound excited states of the N=16 closed shell nucleus 24O NUCLEAR REACTIONS 9Be(26F, 24O), E=76 MeV/nucleon, [secondary 26F beam from 9Be(48Ca, X), E=140 MeV/nucleon primary reaction]; measured charged-particle spectra, E(n), I(n), (23O)n-coin using MONA-LISA array at NSCL-MSU. 24O; deduced decay energy spectrum, levels, J, π, difference between the first 2+ and 1+ states. Comparison with previous experimental results and theoretical calculations.
doi: 10.1103/PhysRevC.92.034316
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
2015SM02 Nucl.Phys. A940, 235 (2015) J.K.Smith, T.Baumann, J.Brown, P.A.DeYoung, N.Frank, J.Hinnefeld, Z.Kohley, B.Luther, B.Marks, A.Spyrou, S.L.Stephenson, M.Thoennessen, S.J.Williams Selective population of unbound states in 10Li NUCLEAR REACTIONS 9Be(12B, 2p), E=71 MeV/nucleon. 10Li measured halo nucleus decay to 9Li plus neutron; calculated one-state and three-state decay; deduced resonances.
doi: 10.1016/j.nuclphysa.2015.04.011
2014MA49 Phys.Rev. C 90, 014616 (2014) E.Martinez-Quiroz, E.F.Aguilera, D.Lizcano, P.Amador-Valenzuela, H.Garcia-Martinez, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee Near- and sub-barrier fusion of the 7Be + 58Ni system NUCLEAR REACTIONS 58Ni(7Be, X), E=16.4, 17.5, 19.4, 20.1, 20.9, 21.9 MeV; measured evaporated proton spectra, σ(E) for protons at Notre Dame TwinSol Radioactive Nuclear Beam facility and FM tandem accelerator; deduced total fusion σ(E) using proton multiplicities. Comparison with predictions of Wong's one-dimensional barrier-penetration model (BPM), and optical model potential (OMP). Comparison with previous experimental results for fusion σ(E) in 27Al(7Be, X), and fission σ(E) in 238U(7Be, F).
doi: 10.1103/PhysRevC.90.014616
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
2014SM03 Phys.Rev. C 90, 024309 (2014) J.K.Smith, T.Baumann, D.Bazin, J.Brown, S.Casarotto, P.A.DeYoung, N.Frank, J.Hinnefeld, M.Hoffman, M.D.Jones, Z.Kohley, B.Luther, B.Marks, N.Smith, J.Snyder, A.Spyrou, S.L.Stephenson, M.Thoennessen, N.Viscariello, S.J.Williams Low-lying neutron unbound states in 12Be NUCLEAR REACTIONS 9Be(13B, 12Be), E=71 MeV/nucleon, [secondary 13B beam from 9Be(18O, X), E=120 MeV/nucleon primary reaction; measured particle and neutron spectra, (12Be)n-, (11Be)2n-coin using A1900 fragment separator and MoNA-LISA array for neutron and fragment detection at NSCL-MSU facility. 12Be; deduced decay energy, level energy, resonance, L-value, J, π, width, one-neutron decay, no evidence for the 2n-decay channel to 10Be. Comparison with previous experimental results, and with continuum shell model calculation.
doi: 10.1103/PhysRevC.90.024309
2013AG01 Phys.Rev. C 87, 014613 (2013) E.F.Aguilera, E.Martinez-Quiroz, R.Chavez-Gonzalez, P.Amador-Valenzuela, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, A.Roberts, T.Spencer, F.D.Becchetti, H.Jiang, M.Ojaruega, P.A.DeYoung, G.F.Peaslee, J.Brown Near-barrier fusion and total reaction of a proton-rich projectile: 3He+58Ni NUCLEAR REACTIONS 58Ni(3He, X), (3He, 3He), E=10.2, 11.5, 12.7 MeV; measured proton and 3He spectra, σ(θ) at Notre Dame TwinSol facility; deduced integrated proton production σ, reduced fusion σ. Comparison with 58Ni+8Be and 58Ni+16O systems, and with PACE calculations.
doi: 10.1103/PhysRevC.87.014613
2013KO03 Phys.Rev. C 87, 011304 (2013) Z.Kohley, E.Lunderberg, P.A.DeYoung, A.Volya, T.Baumann, D.Bazin, G.Christian, N.L.Cooper, N.Frank, A.Gade, C.Hall, J.Hinnefeld, B.Luther, S.Mosby, W.A.Peters, J.K.Smith, J.Snyder, A.Spyrou, M.Thoennessen First observation of the 13Li ground state NUCLEAR REACTIONS 9Be(14Be, 13Li), [14Be secondary beam from 9Be(18O, X), E=120 MeV/nucleon primary beam], E=53.6 MeV/nucleon; measured 11Li fragment and neutron spectra, three-body (11Li+n+n), and two-body (11Li+n) decay energy spectra using Modular Neutron Array (MONA) for neutrons at NSCL facility. Monte Carlo and GEANT4 simulations. Glauber reaction model. 12,13Li; deduced levels, ground state resonance energies. Strong dineutron character for 13Li g.s. Comparison with previous studies.
doi: 10.1103/PhysRevC.87.011304
2013KO10 Phys.Rev.Lett. 110, 152501 (2013) Z.Kohley, T.Baumann, D.Bazin, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, M.Jones, E.Lunderberg, B.Luther, S.Mosby, T.Nagi, J.K.Smith, J.Snyder, A.Spyrou, M.Thoennessen Study of Two-Neutron Radioactivity in the Decay of 26O RADIOACTIVITY 26O(2n) [from 9Be(27F, p), E=82 MeV/nucleon]; measured decay products, En, In; deduced T1/2. Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.110.152501
2013KO28 Phys.Rev. C 88, 041601 (2013) Z.Kohley, G.Christian, T.Baumann, P.A.DeYoung, J.E.Finck, N.Frank, M.Jones, J.K.Smith, J.Snyder, A.Spyrou, M.Thoennessen Exploiting neutron-rich radioactive ion beams to constrain the symmetry energy NUCLEAR REACTIONS 9Be(32Mg, X), [secondary 32Mg beam from Be(48Ca, X), E=140 MeV/nucleon primary reaction], E=73 MeV/nucleon; measured neutron spectra by MoNA array and particle spectra by 4 Tm Sweeper magnet, (particle)n-coin at yield of fragments at NSCL, MSU facility; deduced average N/Z vs Z, multiplicity, velocity distribution, density dependence of the symmetry energy by comparison of the experimental data with the constrained molecular dynamics model (CoMD) constraints.
doi: 10.1103/PhysRevC.88.041601
2013MO12 Nucl.Phys. A909, 69 (2013) S.Mosby, N.S.Badger, T.Baumann, D.Bazin, M.Bennett, J.Brown, G.Christian, P.A.DeYoung, J.E.Finck, M.Gardner, J.D.Hinnefeld, E.A.Hook, E.M.Lunderberg, B.Luther, D.A.Meyer, M.Mosby, G.F.Peaslee, W.F.Rogers, J.K.Smith, J.Snyder, A.Spyrou, M.J.Strongman, M.Thoennessen Search for 21C and constraints on 22C NUCLEAR REACTIONS 9Be(22C, n21C), E=68 MeV/nucleon; measured En, In(\theta), E(20C fragment), I(20C fragment, \theta). 21,22C calculated double neutron halo nucleus low-lying levels, J, π, spectrometric factor using shell model, Goldhaber model with friction term. 21C deduced non-existence of bound state. 20C+n deduced scattering length.
doi: 10.1016/j.nuclphysa.2013.04.004
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
2013RO10 Phys.Rev. C 87, 051305 (2013) A.Roberts, A.M.Howard, J.J.Kolata, A.N.Villano, F.D.Becchetti, P.A.DeYoung, M.Febbraro, S.J.Freeman, B.P.Kay, S.A.McAllister, A.J.Mitchell, J.P.Schiffer, J.S.Thomas, R.O.Torres-Isea Proton pair correlations and the neutrinoless double-β decay of 76Ge NUCLEAR REACTIONS 74,76Ge(3He, n), E=16 MeV; measured E(n), I(n), time-of-flight, σ(θ) for g.s. and first 2+ state using the Neutron Wall at Notre Dame. 76,78Se; deduced levels, proton pair correlations. DWBA analysis. Comparison with quasiparticle random phase approximation (QRPA) model calculations. Relevance to matrix elements for 0νββ decay of 76Ge. Systematics of ground-state cross sections on fpg-shell nuclei of A=60-90, and comparison with theoretical models. No evidence for the breaking of the BCS approximation for paired protons.
doi: 10.1103/PhysRevC.87.051305
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
2013SN02 Phys.Rev. C 88, 031303 (2013) J.Snyder, T.Baumann, G.Christian, R.A.Haring-Kaye, P.A.DeYoung, Z.Kohley, B.Luther, M.Mosby, S.Mosby, A.Simon, J.K.Smith, A.Spyrou, S.Stephenson, M.Thoennessen First observation of 15Be NUCLEAR REACTIONS 2H(14Be, 15Be), E=59 MeV/nucleon, [secondary 14Be from 9Be(18O, X), E=120 MeV/nucleon primary reaction]; measured 14Be, and neutron spectra from decay of 15Be, TOF, production σ, (14Be)n-coin using MoNA array at NSCL-MSU facility. Decay energy spectrum of 15Be fitted with energy-dependent Breit-Wigner distribution. 15Be; deduced level, J, π, neutron-unbound resonance, width. Shell-model calculations.
doi: 10.1103/PhysRevC.88.031303
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
2013TH04 Acta Phys.Pol. B44, 543 (2013) M.Thoennessen, Z.Kohley, A.Spyrou, E.Lunderberg, P.A.DeYoung, H.Attanayake, T.Baumann, D.Bazin, B.A.Brown, G.Christian, D.Divaratne, S.M.Grimes, A.Haagsma, J.E.Finck, N.Frank, B.Luther, S.Mosby, T.Nagi, G.F.Peaslee, W.A.Peters, A.Schiller, J.K.Smith, J.Snyder, M.Strongman, A.Volya Observation of Ground-state Two-neutron Decay RADIOACTIVITY 16Be, 26O(2n); measured decay products, En, In; deduced decay energy spectra. Comparison with calculated two-neutron separation energies, T1/2, widths.
doi: 10.5506/APhysPolB.44.543
2013TH06 Nucl.Phys. A912, 1 (2013) M.Thoennessen, S.Mosby, N.S.Badger, T.Baumann, D.Bazin, M.Bennett, J.Brown, G.Christian, P.A.DeYoung, J.E.Finck, M.Gardner, E.A.Hook, B.Luther, D.A.Meyer, M.Mosby, W.F.Rogers, J.K.Smith, A.Spyrou, M.J.Strongman Observation of a low-lying neutron-unbound state in 19C NUCLEAR REACTIONS 9Be(22N, n18C), (22N, n19C), (22N, n20C), E=68 MeV/nucleon; measured carbon fragments, En, In, (carbon)n-coin. 19C deduced 76 keV resonance, low-lying level scheme near neutron drip line; calculated low-lying levels, J, π using different shell models.
doi: 10.1016/j.nuclphysa.2013.05.001
2012CH02 Phys.Rev.Lett. 108, 032501 (2012) G.Christian, N.Frank, S.Ash, T.Baumann, D.Bazin, J.Brown, P.A.DeYoung, J.E.Finck, A.Gade, G.F.Grinyer, A.Grovom, J.D.Hinnefeld, E.M.Lunderberg, B.Luther, M.Mosby, S.Mosby, T.Nagi, G.F.Peaslee, W.F.Rogers, J.K.Smith, J.Snyder, A.Spyrou, M.J.Strongman, M.Thoennessen, M.Warren, D.Weisshaar, A.Wersal Exploring the Low-Z Shore of the Island of Inversion at N=19 NUCLEAR REACTIONS Be(29Ne, X)28F/27F, E=62 MeV/nucleon; measured reaction products, TOF; deduced 28F ground state energy as resonance in the 27F+n continuum, binding energy. Comparison with USDA/USDB shell model predictions.
doi: 10.1103/PhysRevLett.108.032501
2012CH12 Phys.Rev. C 85, 034327 (2012) G.Christian, N.Frank, S.Ash, T.Baumann, P.A.DeYoung, J.E.Finck, A.Gade, G.F.Grinyer, B.Luther, M.Mosby, S.Mosby, J.K.Smith, J.Snyder, A.Spyrou, M.J.Strongman, M.Thoennessen, M.Warren, D.Weisshaar, A.Wersal Spectroscopy of neutron-unbound 27, 28F NUCLEAR REACTIONS 9Be(29Ne, X)27F/28F, [29Ne secondary beam from 9Be(48Ca, X), E=140 MeV/nucleon primary beam], E=62 MeV/nucleon; measured particle spectra, energy loss, time-of-flight, (26F)n-, (27F)n-, (26F)nγ-coin, E(n), E(26,27F). MoNA array for neutrons, CAESAR array for γ rays. 28F; deduced ground-state as unbound resonance in 27F+n continuum, binding energy. 27F; deduced neutron-unbound level. Comparison with USDA/USDB shell model predictions.
doi: 10.1103/PhysRevC.85.034327
2012KO43 Phys.Rev.Lett. 109, 232501 (2012) Z.Kohley, J.Snyder, T.Baumann, G.Christian, P.A.DeYoung, J.E.Finck, R.A.Haring-Kaye, M.Jones, E.Lunderberg, B.Luther, S.Mosby, A.Simon, J.K.Smith, A.Spyrou, S.L.Stephenson, M.Thoennessen Unresolved Question of the 10He Ground State Resonance NUCLEAR REACTIONS C, 2H(14Be, 2n2p)10He, E=59 MeV/nucleon; measured reaction products, En, In; deduced ground state resonance parameters. Comparison with available data, 18O secondary beams.
doi: 10.1103/PhysRevLett.109.232501
2012LU07 Phys.Rev.Lett. 108, 142503 (2012) E.Lunderberg, P.A.DeYoung, Z.Kohley, H.Attanayake, T.Baumann, D.Bazin, G.Christian, D.Divaratne, S.M.Grimes, A.Haagsma, J.E.Finck, N.Frank, B.Luther, S.Mosby, T.Nagi, G.F.Peaslee, A.Schiller, J.Snyder, A.Spyrou, M.J.Strongman, M.Thoennessen Evidence for the Ground-State Resonance of 26O RADIOACTIVITY 26O(2n) [from Be(27F, p)26O, E=82 MeV/nucleon];measured decay products, En, In. 26O; deduced decay energy spectrum, evidence for the ground state or resonance in neutron unbound nucleus, T1/2 limit. Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.108.142503
2012PE11 Phys.Rev. C 86, 019802 (2012) W.A.Peters, T.Baumann, B.A.Brown, J.Brown, P.A.DeYoung, J.E.Finck, N.Frank, K.L.Jones, J.-L.Lecouey, B.Luther, G.F.Peaslee, W.F.Rogers, M.Thoennessen, J.A.Tostevin Reply to "Comment on 'Neutron knockout of 12Be populating neutron-unbound states in 11Be'" NUCLEAR STRUCTURE 11Be; reanalyzed decay energy curves, level, J, π, branching ratios for 9Be(12Be, n)11Be experiment in 2011Pe13, and in reply to 2012Fo21 comment.
doi: 10.1103/PhysRevC.86.019802
2012SP01 Phys.Rev.Lett. 108, 102501 (2012) A.Spyrou, Z.Kohley, T.Baumann, D.Bazin, B.A.Brown, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, E.Lunderberg, S.Mosby, W.A.Peters, A.Schiller, J.K.Smith, J.Snyder, M.J.Strongman, M.Thoennessen, A.Volya First Observation of Ground State Dineutron Decay: 16Be RADIOACTIVITY 16Be(2n) [from Be(17B, p), E=53 MeV/nucleon]; measured decay products, En, In; deduced two-neutron separation energy.
doi: 10.1103/PhysRevLett.108.102501
2011AG15 Phys.Rev.Lett. 107, 092701 (2011) E.F.Aguilera, P.Amador-Valenzuela, E.Martinez-Quiroz, D.Lizcano, P.Rosales, H.Garcia-Martinez, A.Gomez-Camacho, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee, C.Guess, U.Khadka, J.Brown, J.D.Hinnefeld, L.Acosta, E.S.Rossi, Jr., J.F.P.Huiza, T.L.Belyaeva Near-Barrier Fusion of the 8B+58Ni Proton-Halo System NUCLEAR REACTIONS 58Ni(8B, X)66As, E=22.4-26.9 MeV; measured reaction products, proton spectra; deduced fusion σ, fusion and breakup yields.
doi: 10.1103/PhysRevLett.107.092701
2011FR13 Phys.Rev. C 84, 037302 (2011) N.Frank, D.Albertson, J.Bailey, T.Baumann, D.Bazin, B.A.Brown, J.Brown, P.A.DeYoung, J.E.Finck, A.Gade, J.Hinnefeld, R.Howes, M.Kasperczyk, B.Luther, W.A.Peters, A.Schiller, A.Smith, M.Thoennessen, J.A.Tostevin Neutron-unbound states in 25, 26F NUCLEAR REACTIONS 9Be(26Ne, 25F), (26Ne, 26F), E=86 MeV/nucleon; measured E(n), I(n) at NSCL. 25,26F; deduced levels, J, π, widths, resonances. 25F; calculated levels, J, π using shell-model.
doi: 10.1103/PhysRevC.84.037302
2011HO05 Phys.Rev. C 83, 031303 (2011) C.R.Hoffman, T.Baumann, J.Brown, P.A.DeYoung, J.E.Finck, N.Frank, J.D.Hinnefeld, S.Mosby, W.A.Peters, W.F.Rogers, A.Schiller, J.Snyder, A.Spyrou, S.L.Tabor, M.Thoennessen Observation of a two-neutron cascade from a resonance in 24O NUCLEAR REACTIONS 9Be(26F, nn), E=85 MeV/nucleon; measured neutron spectra using MoNA array, neutron resonance decay energy, neutron-neutron-fragment, neutron-fragment energies, TOF, 22O-nn coin. 24O; deduced level, two-neutron cascade from the resonance in 24O to 22O. 22,23O; deduced levels. Comparison with shell-model calculations.
doi: 10.1103/PhysRevC.83.031303
2011PE13 Phys.Rev. C 83, 057304 (2011) W.A.Peters, T.Baumann, B.A.Brown, J.Brown, P.A.DeYoung, J.E.Finck, N.Frank, K.L.Jones, J.-L.Lecouey, B.Luther, G.F.Peaslee, W.F.Rogers, A.Schiller, M.Thoennessen, J.A.Tostevin, K.Yoneda Neutron knockout of 12Be populating neutron-unbound states in 11Be NUCLEAR REACTIONS 9Be(12Be, n), E=90 MeV/nucleon, [12Be secondary beam from 9Be(18O, X), E=120 MeV/nucleon primary reaction]; measured E(n), I(n) by TOF using MONA array, n(10Be) coin. 11Be; deduced levels, J, π, resonances, σ, spectroscopic factor. 10Be; deduced levels from neutron decay of unbound resonances. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.83.057304
2011SP01 Phys.Rev. C 84, 044309 (2011) A.Spyrou, J.K.Smith, T.Baumann, B.A.Brown, J.Brown, G.Christian, P.A.DeYoung, N.Frank, S.Mosby, W.A.Peters, A.Schiller, M.J.Strongman, M.Thoennessen, J.A.Tostevin Search for the 15Be ground state NUCLEAR REACTIONS 9Be(17C, 2p), E=55 MeV/nucleon, [17C secondary beam from 9Be(22Ne, X) primary reaction]; measured energy loss, time of flight, magnetic rigidity, Be fragment spectra and (Be)(n)-coin. 15Be; deduced g.s., J, π, decay mode, unbound energy. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.84.044309
2010HA04 Phys.Rev. C 81, 021302 (2010) C.C.Hall, E.M.Lunderberg, P.A.DeYoung, T.Baumann, D.Bazin, G.Blanchon, A.Bonaccorso, B.A.Brown, J.Brown, G.Christian, D.H.Denby, J.Finck, N.Frank, A.Gade, J.Hinnefeld, C.R.Hoffman, B.Luther, S.Mosby, W.A.Peters, A.Spyrou, M.Thoennessen First observation of excited states in 12Li NUCLEAR REACTIONS Be(14B, 2p), E=53.4 MeV/nucleon; measured neutron and 11Li spectra from decay of 12Li, and (11Li)n-coin using Modular Neutron Array (MONA). 12Li; deduced levels, J, π. Comparisons with shell model calculations using WBP interaction.
doi: 10.1103/PhysRevC.81.021302
2010SP02 Phys.Lett. B 683, 129 (2010) A.Spyrou, T.Baumann, D.Bazin, G.Blanchon, A.Bonaccorso, E.Breitbach, J.Brown, G.Christian, A.DeLine, P.A.DeYoung, J.E.Finck, N.Frank, S.Mosby, W.A.Peters, A.Russel, A.Schiller, M.J.Strongman, M.Thoennessen First evidence for a virtual 18B ground state NUCLEAR REACTIONS Be(19C, pX)18B, E=62 MeV/nucleon; Be(17C, pX)16B, E=55 MeV/nucleon; measured decay energy spectra, (fragment)(neutron)-coin using time of flight technique with Modular Neutron Array (MoNA). 16B; deduced ground state energies. 17B; deduced level energies, J, π. 18B; calculated level energies, J, π. Comparison with shell model calculations using WBP interaction and other data. Secondary radioactive beam.
doi: 10.1016/j.physletb.2009.12.016
2009AG02 Phys.Rev. C 79, 021601 (2009) E.F.Aguilera, E.Martinez-Quiroz, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, V.Guimaraes, R.Lichtenthaler, O.Camargo, F.D.Becchetti, H.Jiang, P.A.DeYoung, P.J.Mears, T.L.Belyaeva Reaction cross sections for 8B, 7Be, and 6Li+58Ni near the Coulomb barrier: Proton-halo effects NUCLEAR REACTIONS 58Ni(6Li, 6Li), E=9.9, 11.2, 12.1, 13.0, 14.0 MeV; 58Ni(7Be, 7Be), E=15.1, 17.1, 18.5, 19.9, 21.4 MeV; 58Ni(8B, 8B), E=20.7, 23.4, 25.3, 27.2, 29.3 MeV; measured σ, angular distributions; deduced total reaction and breakup cross section for (8B, 8B) reaction, and proton halo effects for 8B. Comparison with optical-model calculations.
doi: 10.1103/PhysRevC.79.021601
2009AG10 Phys.Rev. C 80, 044605 (2009) E.F.Aguilera, E.Martinez-Quiroz, P.Rosales, J.J.Kolata, P.A.DeYoung, G.F.Peaslee, P.Mears, C.Guess, F.D.Becchetti, J.H.Lupton, Y.Chen Hindrance of complete fusion in the 8Li+208Pb system at above-barrier energies NUCLEAR REACTIONS 208Pb(8Li, 4n), (8Li, 5n), E(cm)=32.1, 33.0, 33.9, 34.8, 35.7, 36.6, 37.5 MeV; 212At, 211At; measured α spectra, fusion-evaporation σ, and excitation functions. Pulsed beam. Comparison with barrier-potential model (BPM) calculations.
doi: 10.1103/PhysRevC.80.044605
2009AG14 Phys.Rev. C 79, 021601(R) (2009) E.F.Aguilera, E.Martinez-Quiroz, D.Lizcano, A.Gomez-Camacho, J.J.Kolata, L.O.Lamm, V.Guimaraes, R.Lichtenthaler, O.Camargo, F.D.Becchetti, H.Jiang, P.A.Deyoung, P.J.Mears, T.L.Belyaeva Reaction cross sections for 8B, 7Be, and 6Li + 58Ni near the Coulomb barrier: Proton-halo effects NUCLEAR REACTIONS 58Ni(8B, 8B), 58Ni(7Be, 7Be), 58Ni(6Li, 6Li), E=9.8-29.2 MeV; measured products, 58Ni; deduced σ(θ). Data were imported from EXFOR entry C1671.
doi: 10.1103/physrevc.79.021601
2009HO01 Phys.Lett. B 672, 17 (2009) C.R.Hoffman, T.Baumann, D.Bazin, J.Brown, G.Christian, D.H.Denby, P.A.DeYoung, J.E.Finck, N.Frank, J.Hinnefeld, S.Mosby, W.A.Peters, W.F.Rogers, A.Schiller, A.Spyrou, M.J.Scott, S.L.Tabor, M.Thoennessen, P.Voss Evidence for a doubly magic 24O NUCLEAR REACTIONS Be(26F, n23O), E=85 MeV/nucleon; measured neutron decay energy spectra, (fragment)(neutron)-coin. 24O deduced excited state energies, J, π. Comparison with other data and systematics. Secondary radioactive beam.
doi: 10.1016/j.physletb.2008.12.066
2009ST20 Phys.Rev. C 80, 021302 (2009) M.J.Strongman, A.Spyrou, C.R.Hoffman, T.Baumann, D.Bazin, J.Brown, P.A.DeYoung, J.E.Finck, N.Frank, S.Mosby, W.F.Rogers, G.F.Peaslee, W.A.Peters, A.Schiller, S.L.Tabor, M.Thoennessen Disappearance of the N = 14 shell NUCLEAR REACTIONS Be(26F, X)22N, E=85 MeV/nucleon; measured En and (fragment)(neutron)-coin spectrum. 22N; deduced levels, J, π. Level systematics of N=14, 15 C, N and O isotones. Comparison with shell-model calculations using WBTM and WBPM interactions.
doi: 10.1103/PhysRevC.80.021302
2008CH07 Nucl.Phys. A801, 101 (2008) G.Christian, W.A.Peters, D.Absalon, D.Albertson, T.Baumann, D.Bazin, E.Breitbach, J.Brown, P.L.Cole, D.Denby, P.A.DeYoung, J.E.Finck, N.Frank, A.Fritsch, C.Hall, A.M.Hayes, J.Hinnefeld, C.R.Hoffman, R.Howes, B.Luther, E.Mosby, S.Mosby, D.Padilla, P.V.Pancella, G.Peaslee, W.F.Rogers, A.Schiller, M.J.Strongman, M.Thoennessen, L.O.Wagner Production of nuclei in neutron unbound states via primary fragmentation of 48Ca NUCLEAR REACTIONS 9Be(48Ca, X)10Li/11,13Be/23O, E=60 MeV/nucleon; measured neutron decay energy spectra, (fragment)(neutron)-coin using sequential neutron decay spectroscopy technique. 10Li, 11,13Be, 23O observed unbound states.
doi: 10.1016/j.nuclphysa.2008.01.004
2008DE29 Phys.Rev. C 78, 044303 (2008) D.H.Denby, P.A.DeYoung, T.Baumann, D.Bazin, E.Breitbach, J.Brown, N.Frank, A.Gade, C.C.Hall, J.Hinnefeld, C.R.Hoffman, R.Howes, R.A.Jenson, B.Luther, S.M.Mosby, C.W.Olson, W.A.Peters, A.Schiller, A.Spyrou, M.Thoennessen Ground state energy and width of 7He from 8Li proton knockout NUCLEAR REACTIONS Be(8Li, X), E=41 MeV/nucleon; measured particle spectra, angular distributions. Deduced energy of ground-state resonances. 7He; deduced ground-state energies and widths.
doi: 10.1103/PhysRevC.78.044303
2008FR10 Nucl.Phys. A813, 199 (2008) N.Frank, T.Baumann, D.Bazin, B.A.Brown, J.Brown, P.A.DeYoung, J.E.Finck, A.Gade, J.Hinnefeld, R.Howes, J.-L.Lecouey, B.Luther, W.A.Peters, H.Scheit, A.Schiller, M.Thoennessen, J.Tostevin Neutron decay spectroscopy of neutron-rich oxygen isotopes NUCLEAR REACTIONS 9Be(26Ne, X)22O/23O/24O, E=86 MeV/nucleon; measured fragment and neutron spectra, (fragment)n-coin, decay energy spectra; deduced reaction mechanism features. 22,23,24O deduced levels, J, π, strength functions, configurations. 23O observed unbound state.
doi: 10.1016/j.nuclphysa.2008.09.009
2008HO03 Phys.Rev.Lett. 100, 152502 (2008) C.R.Hoffman, T.Baumann, D.Bazin, J.Brown, G.Christian, P.A.DeYoung, J.E.Finck, N.Frank, J.Hinnefeld, R.Howes, P.Mears, E.Mosby, S.Mosby, J.Reith, B.Rizzo, W.F.Rogers, G.Peaslee, W.A.Peters, A.Schiller, M.J.Scott, S.L.Tabor, M.Thoennessen, P.J.Voss, T.Williams Determination of the N = 16 Shell Closure at the Oxygen Drip Line NUCLEAR REACTIONS Be(26F, 25O), E=85 MeV/nucleon; measured fragment, neutron energies and yields. 25O; deduced decay width.
doi: 10.1103/PhysRevLett.100.152502
2007AM10 Eur.Phys.J. Special Topics 150, 1 (2007) H.Amro, F.D.Becchetti, Y.Chen, H.Jiang, M.Ojaruega, M.J.Golobish, H.C.Griffin, J.J.Kolata, B.Skorodumov, G.Peaslee, P.A.DeYoung, P.Mears, D.Denby, J.Brown, J.D.Hinnefeld, A.M.Moro 7Be-induced α -transfer reaction on 12C NUCLEAR REACTIONS 12C(7Be, 3He), E=34 MeV; measured σ and angular distributions.
doi: 10.1140/epjst/e2007-00250-4
2007KO23 Phys.Rev. C 75, 031302 (2007) J.J.Kolata, H.Amro, F.D.Becchetti, J.A.Brown, P.A.DeYoung, M.Hencheck, J.D.Hinnefeld, G.F.Peaslee, A.L.Fritsch, C.Hall, U.Khadka, Patrick J.Mears, P.O'Rourke, D.Padilla, J.Rieth, T.Spencer, T.Williams Breakup of 6He incident on 209Bi near the Coulomb barrier NUCLEAR REACTIONS 209Bi(6He, 2nα), E=22.5 MeV; measured En, Eα, nα-coin, σ(θ); deduced reaction mechanism features. 6He level deduced B(E2).
doi: 10.1103/PhysRevC.75.031302
2007RO01 Phys.Rev. C 75, 014603 (2007) G.V.Rogachev, J.J.Kolata, A.S.Volya, F.D.Becchetti, Y.Chen, P.A.DeYoung, J.Lupton Spectroscopy of 9C via resonance scattering of protons on 8B NUCLEAR REACTIONS 1H(8B, p), E(cm)=0.5-3.2 MeV; measured Ep, σ(θ), excitation function. 9C deduced resonance energies, widths, J, π. Thick target, R-matrix analysis, continuum shell model calculations.
doi: 10.1103/PhysRevC.75.014603
2007SC32 Phys.Rev.Lett. 99, 112501 (2007) A.Schiller, N.Frank, T.Baumann, D.Bazin, B.A.Brown, J.Brown, P.A.DeYoung, J.E.Finck, A.Gade, J.Hinnefeld, R.Howes, J.-L.Lecouey, B.Luther, W.A.Peters, H.Scheit, M.Thoennessen, J.A.Tostevin Selective Population and Neutron Decay of an Excited State of 23O NUCLEAR REACTIONS Be(26Ne, n2p), E=86 MeV/nucleon; measured neutron decay energy spectrum, fragment-neutron-coinc. 23O deduced level energy, spectroscopic factor.
doi: 10.1103/PhysRevLett.99.112501
2006KO03 Nucl.Instrum.Methods Phys.Res. A557, 594 (2006) J.J.Kolata, H.Amro, M.Cloughesy, P.A.DeYoung, J.Rieth, J.P.Bychowski, G.Peaslee A large segmented neutron detector for reaction studies with radioactive beams near the Coulomb barrier RADIOACTIVITY 252Cf(SF); measured neutron spectra, angular distributions.
doi: 10.1016/j.nima.2005.11.161
2005BE38 Phys.Rev. C 71, 054610 (2005) F.D.Becchetti, R.S.Raymond, D.A.Roberts, J.Lucido, P.A.DeYoung, B.Hilldore, J.Bychowski, A.J.Huisman, P.J.VanWylen, J.J.Kolata, G.Rogachev, J.D.Hinnefeld The (8Li, α) reaction at low energy: Direct 4H cluster transfer? NUCLEAR REACTIONS C, 27Al, 208Pb(8Li, α), E=27.7 MeV; measured Eα, σ(θ); deduced reaction mechanism features.
doi: 10.1103/PhysRevC.71.054610
2005BO36 Phys.Rev.Lett. 95, 132502 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Doppler Shift as a Tool for Studies of Isobaric Analog States of Neutron-Rich Nuclei: Application to 7He NUCLEAR REACTIONS 1H(6He, γ), E < 24 MeV; measured Eγ, Iγ; deduced IAS formation σ, σ(θ). 7Li deduced resonance parameters. Doppler-shift analysis technique.
doi: 10.1103/PhysRevLett.95.132502
2005BO49 Eur.Phys.J. A 25, Supplement 1, 259 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Isobaric analog states of neutron-rich nuclei. Doppler shift as a measurement tool for resonance excitation functions NUCLEAR REACTIONS 1H(6He, n), E not given; measured Doppler-shifted Eγ, Iγ. 7Li deduced resonance features, IAS.
doi: 10.1140/epjad/i2005-06-014-4
2005DE16 Phys.Rev. C 71, 051601 (2005) P.A.DeYoung, P.J.Mears, J.J.Kolata, E.F.Aguilera, F.D.Becchetti, Y.Chen, M.Cloughesy, H.Griffin, C.Guess, J.D.Hinnefeld, H.Jiang, S.R.Jones, U.Khadka, D.Lizcano, E.Martinez-Quiroz, M.Ojaniega, G.F.Peaslee, A.Pena, J.Rieth, S.VanDenDriessche, J.A.Zimmerman Two-neutron transfer in the 6He + 209Bi reaction near the Coulomb barrier NUCLEAR REACTIONS 209Bi(6He, α), (6He, nα), E=23.1 MeV; measured Eα, Eν, nα-coin, angular distributions following residual nucleus decay; deduced two-neutron transfer σ.
doi: 10.1103/PhysRevC.71.051601
2005RO37 Nucl.Instrum.Methods Phys.Res. B241, 977 (2005) G.V.Rogachev, A.A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Isobaric analog states as a tool for spectroscopy of exotic nuclei NUCLEAR REACTIONS 1H(8He, 8He), E not given; measured recoil proton spectrum; deduced excitation function. 1H(6He, 6Li), E not given; measured neutron spectrum, nγ-coin; deduced excitation function. 7,9Li deduced resonance parameters. 7,9He deduced analog states features.
doi: 10.1016/j.nimb.2005.07.157
2004BY03 Phys.Lett. B 596, 26 (2004) J.P.Bychowski, P.A.DeYoung, B.B.Hilldore, J.D.Hinnefeld, A.Vida, F.D.Becchetti, J.Lupton, T.W.O'Donnell, J.J.Kolata, G.Rogachev, M.Hencheck 209Bi(6He, α) reaction mechanisms studied near the Coulomb barrier using n-α coincidence measurements NUCLEAR REACTIONS 209Bi(6He, αX), E=22.9 MeV; measured Eα, En, nα-coin, angular distributions; deduced single-neutron transfer contribution.
doi: 10.1016/j.physletb.2004.05.058
2004CL02 Phys.Rev.Lett. 92, 172502 (2004) R.R.C.Clement, D.Bazin, W.Benenson, B.A.Brown, A.L.Cole, M.W.Cooper, P.A.DeYoung, A.Estrade, M.A.Famiano, N.H.Frank, A.Gade, T.Glasmacher, P.T.Hosmer, W.G.Lynch, F.Montes, W.F.Mueller, G.F.Peaslee, P.Santi, H.Schatz, B.M.Sherrill, M.-J.van Goethem, M.S.Wallace New Approach for Measuring Properties of rp-Process Nuclei NUCLEAR REACTIONS H, C(34Ar, 33ArX), E=84 MeV/nucleon; measured Eγ, Iγ, (particle)γ-coin following neutron removal. 33Ar deduced levels, J, π, spectroscopic factors. 32Cl(p, γ), E=low; calculated astrophysical reaction rates.
doi: 10.1103/PhysRevLett.92.172502
2004KO22 Phys.Rev. C 69, 047601 (2004) J.J.Kolata, E.F.Aguilera, F.D.Becchetti, Y.Chen, P.A.DeYoung, H.Garcia-Martinez, J.D.Hinnefeld, J.H.Lupton, E.Martinez-Quiroz, G.Peaslee Elastic scattering of 10Be on 208Pb near the Coulomb barrier NUCLEAR REACTIONS 208Pb(10Be, 10Be), E=38.4-43.9; measured σ(θ); deduced optical model parameters, total reaction σ. Comparison with previous results.
doi: 10.1103/PhysRevC.69.047601
2004RO20 Phys.Rev.Lett. 92, 232502 (2004) G.V.Rogachev, P.Boutachkov, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, V.Z.Goldberg, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Analog States of 7He Observed via the 6He(p, n) Reaction NUCLEAR REACTIONS 1H(6He, n), E=24 MeV; measured En, Eγ, nγ-coin; deduced excitation function. 7Li deduced levels, J, π, analog states. 7He deduced IAR features.
doi: 10.1103/PhysRevLett.92.232502
2004RO42 Nucl.Phys. A746, 229c (2004) G.V.Rogachev, A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Structure of exotic 7He and 9He NUCLEAR REACTIONS 1H(6He, n), E(cm) ≈ 1-3.3 MeV; 1H(8He, 8He), E* ≈ 15-20 MeV; measured σ(θ), excitation functions. 7,9Li, 7,9He deduced IAS features.
doi: 10.1016/j.nuclphysa.2004.09.036
2003BE38 Nucl.Instrum.Methods Phys.Res. A505, 377 (2003) F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, J.J.Kolata, L.O.Lamm, G.Rogachev, V.Guimaraes, P.A.DeYoung, S.Vincent The TwinSol low-energy radioactive nuclear beam apparatus: status and recent results NUCLEAR REACTIONS Pb(8Li, 8Li), (8Li, 8Li'), E=20-36 MeV; measured σ(E). 8Li deduced transition B(E2). 1H(7Be, 7Be), E=low; measured excitation function.
doi: 10.1016/S0168-9002(03)01101-X
2003GA04 Phys.Rev. C 67, 024602 (2003) L.R.Gasques, L.C.Chamon, D.Pereira, V.Guimaraes, A.Lepine-Szily, M.A.G.Alvarez, E.S.Rossi, Jr., C.P.Silva, B.V.Carlson, J.J.Kolata, L.Lamm, D.Peterson, P.Santi, S.Vincent, P.A.De Young, G.Peasley Experimental determination of the surface density for the 6He exotic nucleus NUCLEAR REACTIONS 58Ni(α, α), (6He, 6He), E=8.1, 9.0, 9.1, 9.6 MeV; measured σ(θ). 58Ni(α, α), E=82-288 MeV; analyzed σ(θ). 4,6He deduced ground-state nuclear densities. Unfolding method, comparison with model predictions.
doi: 10.1103/PhysRevC.67.024602
2003RO13 Phys.Rev. C 68, 024602 (2003) G.V.Rogachev, J.J.Kolata, V.Z.Goldberg, L.V.Grigorenko, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, L.O.Lamm, J.Lupton, T.W.O'Donnell, D.A.Roberts, S.Shaheen Final state interaction or a 3H excited state? NUCLEAR REACTIONS 1H(6He, α), E=23.9 MeV; measured Eα, Iα; deduced resonance structure, possible three-body final-state interaction. 3H deduced possible excited state.
doi: 10.1103/PhysRevC.68.024602
2003SA07 Phys.Rev. C 67, 024606 (2003) P.Santi, J.J.Kolata, V.Guimaraes, D.Peterson, R.White-Stevens, E.Rischette, D.Bazin, B.M.Sherrill, A.Navin, P.A.DeYoung, P.L.Jolivette, G.F.Peaslee, R.T.Guray Structure of the 10Li nucleus investigated via the 9Li(d, p)10Li reaction NUCLEAR REACTIONS 2H(9Li, p), (13C, p), E=20 MeV/nucleon; measured particle spectra, (fragment)p-coin, angular distributions. 9,10Li deduced ground-state mass excess lower limits. 10Li deduced neutron decay branching ratio, resonance features. S800 spectrograph.
doi: 10.1103/PhysRevC.67.024606
2002KO25 Phys.Rev. C65, 054616 (2002) J.J.Kolata, V.Z.Goldberg, L.O.Lamm, M.G.Marino, C.J.O'Keeffe, G.Rogachev, E.F.Aguilera, H.Garcia-Martinez, E.Martinez-Quiroz, P.Rosales, F.D.Becchetti, T.W.O'Donnell, D.A.Roberts, J.A.Brown, P.A.DeYoung, J.D.Hinnefeld, S.A.Shaheen Elastic Scattering and Transfer in the 8Li + 209Pb System Near the Coulomb Barrier NUCLEAR REACTIONS 208Pb(8Li, 8Li), (8Li, 7LiX), (8Li, αX), E(cm)=24-33 MeV; measured particle spectra, σ(θ); deduced total reaction σ, interaction barrier. Comparison with similar reactions.
doi: 10.1103/PhysRevC.65.054616
2001AG06 Phys.Rev. C63, 061603 (2001) E.F.Aguilera, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, A.Horvath, L.O.Lamm, H.-Y.Lee, D.Lizcano, E.Martinez-Quiroz, P.Mohr, T.W.O'Donnell, D.A.Roberts, G.Rogachev Elastic Scattering and Transfer in the 6He + 209Bi System below the Coulomb Barrier NUCLEAR REACTIONS 209Bi(6He, X), E(cm)=14.3-21.4 MeV; measured reaction σ. 209Bi(6He, 6He), (6He, αX), E(cm)=14.3-21.4 MeV; measured σ(θ); deduced optical model parameters.
doi: 10.1103/PhysRevC.63.061603
2001KA20 Nucl.Phys. A686, 109 (2001) M.Kaplan, C.J.Copi, P.A.DeYoung, G.J.Gilfoyle, P.J.Karol, D.J.Moses, W.E.Parker, K.E.E.Rehm, J.Sarafa, E.Vardaci Studies of Light Charged Particle Emission from Fission and ER Reactions in the System 344 MeV 28Si + 121Sb → 149Tb(E* = 240 MeV) NUCLEAR REACTIONS 121Sb(28Si, X), E=344 MeV; measured proton and α spectra in coincidence with fission fragments and evaporation residues; deduced reaction mechanism features. Comparison with statistical model predictions.
doi: 10.1016/S0375-9474(00)00573-X
2001MI12 Nucl.Phys. A686, 525 (2001) Z.Milosevich, E.Vardaci, P.A.DeYoung, C.M.Brown, M.Kaplan, J.P.Whitfield, D.Peterson, C.Dykstra, M.Barton, P.J.Karol, M.A.McMahan Small Angle Particle-Particle Correlation Measurements in the Reactions 280 MeV 40Ar + 27Al and 670 MeV 55Mn + 12C NUCLEAR REACTIONS 27Al(40Ar, X), E=280 MeV; 12C(55Mn, X), E=670 MeV; measured pp-, pd-, pα-, dd-, dα-, αα-coin, relative momentum distributions, correlation functions; deduced role of compound nucleus spin distribution. Comparison with statistical model.
doi: 10.1016/S0375-9474(00)00569-8
2001RO32 Phys.Rev. C64, 061601 (2001) G.V.Rogachev, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, M.Hencheck, K.Helland, J.D.Hinnefeld, B.Hughey, P.L.Jolivette, L.M.Kiessel, H.-Y.Lee, M.Y.Lee, T.W.O'Donnell, G.F.Peaslee, D.Peterson, D.A.Roberts, P.Santi, S.A.Shaheen Proton Elastic Scattering from 7Be at Low Energies NUCLEAR REACTIONS 1H(7Be, 7Be), E < 25.5 MeV; measured back-angle recoil proton spectra, σ(θ). 7Be(p, p), E=1-3.3 MeV; deduced excitation function. 8B deduced levels, J, π. Predicted 1+ state in 8B not found, astrophysical implication discussed. Thick target technique.
doi: 10.1103/PhysRevC.64.061601
2001VA18 Nucl.Phys. A687, 140c (2001) R.L.Varner, J.R.Beene, M.Chartier, J.F.Liang, D.Shapira, D.Bazin, B.Blank, B.Sherrill, M.Thoennessen, P.A.DeYoung, G.F.Peaslee Excitation of the Isovector Giant Quadrupole Resonance in 208Pb by Coulomb Inelastic Scattering NUCLEAR REACTIONS 90Zr, 208Pb(17O, 17O'), (36Ar, 36Ar'), E=150 MeV/nucleon; measured inelastic scattering σ, inelastic excitation yield, isovector giant quadrupole resonance, GDR features.
doi: 10.1016/S0375-9474(01)00613-3
2000AG03 Phys.Rev.Lett. 84, 5058 (2000) E.F.Aguilera, J.J.Kolata, F.M.Nunes, F.D.Becchetti, P.A.DeYoung, M.Goupell, V.Guimaraes, B.Hughey, M.Y.Lee, D.Lizcano, E.Martinez-Quiroz, A.Nowlin, T.W.O'Donnell, G.F.Peaslee, D.Peterson, P.Santi, R.White-Stevens Transfer and/or Breakup Modes in the 6He + 209Bi Reaction Near the Coulomb Barrier NUCLEAR REACTIONS 209Bi(6He, X), E=19.0, 22.5 MeV; measured light fragments energy spectra, σ(θ); deduced reaction mechanism features, mechanism for sub-barrier fusion enhancement.
doi: 10.1103/PhysRevLett.84.5058
2000BR20 Phys.Rev. C61, 054611 (2000) C.M.Brown, Z.Milosevich, M.Kaplan, E.Vardaci, P.A.DeYoung, J.P.Whitfield, D.Peterson, C.Dykstra, P.J.Karol, M.A.McMahan Light-Charged-Particle Emission in the Matched Reactions 280 MeV 40Ar + 27Al and 670 MeV 55Mn + 12C: Coincidence results NUCLEAR REACTIONS 27Al(40Ar, X), E=280 MeV; 12C(55Mn, X), E=670 MeV; measured exclusive light particle spectra, angular distributions, multiplicities, coincidence cross section ratios. Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.61.054611
2000CO20 Phys.Rev. C61, 067602 (2000) E.Colin, R.Sun, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Nuclear Disassembly in Violent Central Collisions at Intermediate Energies: (65-115)A MeV 40Ar + Cu, Ag, Au NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=65-115 MeV/nucleon; measured fragments multiplicity, velocity, mass distributions; deduced rate of nuclear disassembly.
doi: 10.1103/PhysRevC.61.067602
2000DE05 Phys.Rev. C61, 024603 (2000) P.A.DeYoung, M.J.Goupell, B.V.Atallah, J.A.Haglund, P.L.Jolivette, M.K.MacDermaid, G.F.Peaslee, J.J.Kolata, E.D.Berners, D.Peterson, J.von Schwarzenberg, J.D.Hinnefeld Evidence for Nonequilibrium Proton Emission in a Low-Energy Heavy-Ion Reaction NUCLEAR REACTIONS 27Al(16O, X), E=72 MeV; measured light charged particles correlation functions; deduced source features, nonequilibrium proton emission.
doi: 10.1103/PhysRevC.61.024603
2000DE48 Phys.Rev. C62, 047601 (2000) P.A.DeYoung, B.Atallah, B.Hughey, P.L.Jolivette, M.Kern, G.F.Peaslee, V.Guimaraes, J.J.Kolata, D.Peterson, P.Santi, R.White-Stevens, E.F.Aguilera, E.Martinez-Quiroz, F.D.Becchetti, M.Y.Lee, J.A.Zimmerman, J.D.Hinnefeld, O.A.Capurro Angular Momentum in the 6He + 209Bi Reaction Deduced from Isomer Ratio Measurements NUCLEAR REACTIONS 209Bi(6He, 3n), E(cm)=18-27 MeV; measured isomer production ratio; deduced compound nucleus spin distribution features.
doi: 10.1103/PhysRevC.62.047601
2000SU01 Phys.Rev.Lett. 84, 43 (2000) R.Sun, E.Colin, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Balance of Mass, Momentum, and Energy in Splintering Central Collisions for 40Ar up to 115 MeV/Nucleon NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured fragments mass, charge, multiplicity, momentum, angular distributions. Comparison with statistical model.
doi: 10.1103/PhysRevLett.84.43
2000SU12 Phys.Rev. C61, 061601 (2000) R.Sun, E.Colin, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, K.L.Drake, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, L.B.Yang, J.Yee Isotropic Emission Components in Splintering Central Collisions: (17-115)A MeV 40Ar + Cu, Ag, Au NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured fragments mass and charge distributions, multiplicities, kinetic energy spectra, angular distributions; deduced reaction mechanism features. Sequential evaporation model.
doi: 10.1103/PhysRevC.61.061601
1998CO03 Phys.Rev. C57, R1032 (1998) E.Colin, R.Sun, N.N.Ajitanand, J.M.Alexander, M.A.Barton, P.A.DeYoung, A.Elmaani, C.J.Gelderloos, E.E.Gualtieri, D.Guinet, S.Hannuschke, J.A.Jaasma, L.Kowalski, R.A.Lacey, J.Lauret, E.Norbeck, R.Pak, G.F.Peaslee, M.Stern, N.T.B.Stone, S.D.Sundbeck, A.M.Vander Molen, G.D.Westfall, J.Yee Splintering Central Collisions: Systematics of momentum and energy deposition for (17-115)A MeV 40Ar NUCLEAR REACTIONS Cu, Ag, 197Au(40Ar, X), E=17-115 MeV/nucleon; measured light, intermediate, heavy fragments velocity, mass, angle, charge distributions; deduced reaction mechanism.
doi: 10.1103/PhysRevC.57.R1032
1998DE50 Phys.Rev. C58, 3442 (1998) P.A.DeYoung, B.Hughey, P.L.Jolivette, G.F.Peaslee, J.J.Kolata, V.Guimaraes, D.Peterson, P.Santi, H.C.Griffin, J.A.Zimmerman, J.D.Hinnefeld Fusion of a Neutron Skin Nucleus: The 209Bi(6He, 4n) reaction NUCLEAR REACTIONS, ICPND 209Bi(6He, 4n), E(cm)=23.5-30.7; measured production σ(E). Radioactive beam, activation technique. Comparison with statistical model.
doi: 10.1103/PhysRevC.58.3442
1998KO57 Phys.Rev.Lett. 81, 4580 (1998) J.J.Kolata, V.Guimaraes, D.Peterson, P.Santi, R.White-Stevens, P.A.DeYoung, G.F.Peaslee, B.Hughey, B.Atalla, M.Kern, P.L.Jolivette, J.A.Zimmerman, M.Y.Lee, F.D.Becchetti, E.F.Aguilera, E.Martinez-Quiroz, J.D.Hinnefeld Sub-Barrier Fusion of 6He with 209Bi NUCLEAR REACTIONS 209Bi(6He, 3n), E(cm) ≈ 19-27 MeV; measured σ; deduced fusion σ, sub-barrier enhancement.
doi: 10.1103/PhysRevLett.81.4580
1997DE23 Phys.Rev. C56, 244 (1997) P.A.DeYoung, C.Dykstra, P.Gonthier, C.Mader, G.F.Peaslee, D.Peterson, R.Sedlar, S.Sundbeck, N.Shaw, G.Westfall, D.Craig, R.Lacey, T.Li, T.Reposeur, A.Vander Molen, J.Winfield, S.Yennello, A.Nadasen Sensitivity of Small-Angle Correlations of Light Charged Particles to Reaction Mechanisms in the 16O + 27Al Reaction at 40 MeV/nucleon NUCLEAR REACTIONS 27Al(16O, X), E=40 MeV/nucleon; measured pp-, pα-, dα, αα- correlation functions; deduced source lifetime features. 27Al, Ag, (32S, X), E=3.3-22.3 MeV; 12C, 27Al, 197Au(16O, X), E=5-94 MeV; 12C, Ag, 108Ag, 197Au(40Ar, X), E=8-60 MeV; 12C, 27Al, 59Co, 197Au(20Ne, X), E=30 MeV; 58Ni(α, X), E=30 MeV; 27Al, 122Sn(139Xe, X), E=31 MeV, 27Al, 197Au(14N, X), E=35-75 MeV; 58Ni, 115In, 197Au(12C, X), E=46.7 MeV; 108Ag(3He, X), E=66.7 MeV; 45Sc(36Ar, X), E=80-160 MeV; compiled small-angle correlation measurements. 4π CsI array.
doi: 10.1103/PhysRevC.56.244
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