NSR Query Results
Output year order : Descending NSR database version of March 18, 2024. Search: Author = R.J.Charity Found 215 matches. Showing 1 to 100. [Next]2023BE26 Phys.Rev. C 108, L061301 (2023) T.Beck, A.Gade, B.A.Brown, J.A.Tostevin, D.Weisshaar, D.Bazin, K.W.Brown, R.J.Charity, P.J.Farris, S.A.Gillespie, A.M.Hill, J.Li, B.Longfellow, W.Reviol, D.Rhodes Probing proton cross-shell excitations through the two-neutron removal from 38Ca
doi: 10.1103/PhysRevC.108.L061301
2023CH22 Phys.Rev. C 107, 054301 (2023) R.J.Charity, K.Brown, T.Webb, L.G.Sobotka Invariant-mass spectroscopy of 10B, 11C, 14F, 16F, and 18Na NUCLEAR REACTIONS 9Be(15O, X)16F/18Na/11C/10B, E=48.1 MeV/nucleon; 9Be(17Ne, X)16F/18Na/11C/10B, E=48.1 MeV/nucleon; measured charged particle spectra, angular distributions, Eγ, Iγ, γ(θ), (particle)γ-coin; deduced invariant mass-spectrum. 9Be(13O, X)14F/11C/10B, E=69.5 MeV/nucleon; measured charged particles, (particle)(particle)-coin; deduced invariant mass-spectrum. 16,14F, 18Na; deduced levels, J, π, S(p), proton-decay widths, nγ-decay widths, d-wave resonances spectroscopic factors. 10B; deduced levels, J, π, 4+ state - member of T=1 rotational band. 11C; deduced levels, J, π from analysis of invariant-mass spectrum of 2α+3He and 6Li+α+p events. Comparison to previous experimental data and shell-model calculations. Systematics of analog rotational bands in 10C, 10B and 10Be. High-resolution array (HiRA) consisting of 14 Si-CsI(Tl) at NSCL (MSU). For the experiments with 15O and 17Ne beams setup was extended by CAESAR (CAESium iodide ARray) consisted of 158 CsI(Na) crystals.
doi: 10.1103/PhysRevC.107.054301
2023CH46 Phys.Rev.Lett. 131, 172501 (2023) R.J.Charity, J.Wylie, S.M.Wang, T.B.Webb, K.W.Brown, G.Cerizza, Z.Chajecki, J.M.Elson, J.Estee, D.E.M.Hoff, S.A.Kuvin, W.G.Lynch, J.Manfredi, N.Michel, D.G.McNeel, P.Morfouace, W.Nazarewicz, C.D.Pruitt, C.Santamaria, S.Sweany, J.Smith, L.G.Sobotka, M.B.Tsang, A.H.Wuosmaa Strong Evidence for 9N and the Limits of Existence of Atomic Nuclei RADIOACTIVITY 9N(p), 8C, 6Be(2p) [from 9Be(13O, X)9N, E=69.5 MeV/nucleon]; measured decay products, Ep, Ip. 9N, 8C; deduced invariant-mass spectra, level diagrams, possible single resonancelike peak in the spectrum. R-matrix fits, comparison with the theoretical predictions of an open-quantum-system approach. The National Superconducting Cyclotron Laboratory at Michigan State University.
doi: 10.1103/PhysRevLett.131.172501
2023CH47 Phys.Rev. C 108, 044318 (2023) Invariant-mass spectroscopy in projectile fragmentation reactions
doi: 10.1103/PhysRevC.108.044318
2023DR01 Phys.Rev. C 107, 034306 (2023) N.Dronchi, D.Weisshaar, B.A.Brown, A.Gade, R.J.Charity, L.G.Sobotka, K.W.Brown, W.Reviol, D.Bazin, P.J.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, S.N.Paneru, S.A.Gillespie, A.Anthony, E.Rubino, S.Biswas Measurement of the B(E2 ↑) strengths of 36Ca and 38Ca NUCLEAR REACTIONS 197Au(36Ca, 36Ca), E=76.9 MeV/nucleon; 197Au(38Ca, 38Ca), E=69.1 MeV/nucleon; 197Au(34Ar, 34Ar), E not given; measured reaction products, Eγ, Iγ; deduced σ and B(E2) for the excitation of the first 2+ (34Ar was present as contamination). 36Ca; deduced proton decay branching ratio for 2 state proton unbound state, spectroscopic factors, charge radii difference with mirror nuclei 36S. 35K(p, γ), T=0.5-2 GK; deduced reaction rate using obtained in this paper values for the 36Ca B(E2) and proton branching ratio. GRETINA HPGe array and the S800 spectrograph used to measure the γ-decay following Coulomb excitation. CAESAR CsI(Na) array and the S800 spectrograph used to measure the p/γ- branching ratio in 36Ca. Systematics of first 2+ states energy and B(E2) for Ca isotopes. Beam produced from fragmentation reaction 9Be(40Ca, X), E=140 MeV/nucleon at Coupled Cyclotron Facility (NSCL). NUCLEAR STRUCTURE 36,38,40,42,44,46,48,50Ca, 36S, 38Ar; calculated energy of first 2+ state, B(E2) for the excitation of first 2+ state. Shell model calculations with ZBM2, USDB, spdfu-mix and GXPF1A interactions. Comparison to experimental data.
doi: 10.1103/PhysRevC.107.034306
2023DR02 Phys.Rev. C 107, L061303 (2023) N.Dronchi, J.Berkman, R.J.Charity, J.M.Elson, L.G.Sobotka, A.G.Thomas, A.Saastamoinen, M.Barbui, J.Bishop, C.E.Parker, B.T.Roeder, G.V.Rogachev, D.P.Scriven, S.T.Marley, R.M.Shaffer Search for an s-wave resonance in 7Li just above the proton-decay threshold NUCLEAR REACTIONS 2H(6He, n)7Li, E=6.4 MeV/nucleon; measured charged particles from 7Li excited states decay; deduced invariant mass, resonances. 6,7Li, 8Be; deduced energies and widths of the states. Charged particles identified with array of 4 Si-Si telescopes from HIRA array. Secondary beam produced from 7Li(d, 3He)6He reaction at K150 cyclotron (Texas AM University Cyclotron Institute).
doi: 10.1103/PhysRevC.107.L061303
2022CH02 Phys.Rev. C 105, 014314 (2022) R.J.Charity, L.G.Sobotka, T.B.Webb, K.W.Brown Two-proton decay from α-cluster states in 10C and 11N NUCLEAR STRUCTURE 10C, 11N; analyzed 2p+2α for 10C and 3p+2α exit channels for two-proton decay and highly fragmented decay channels using invariant-mass data from four previous experiments at NSCL-MSU, and Texas A and M facility involving inelastic scattering, multinucleon knockout, and neutron-pickup reactions; deduced a number of democratic 2p emitters associated with α-cluster structure, Correlation plots for the two-proton decay of the second 3/2- state in 11N and second 0+ state in 10C. 10C; deduced levels, J, π, α-cluster states, rotational band built on the second 0+ (Hoyle) state with α-cluster molecular structure, prompt 2p decay from excited states, decay channels and their branching ratios, compared with level structure of mirror nucleus 10Be. 11N; deduced levels, J, π, Γ, molecular band built on the second 3/2- state, decaying by 2p-channel, compared with level structure of mirror nucleus 11Be. Discussed possible 2n-decay of neutron-rich cluster configurations.
doi: 10.1103/PhysRevC.105.014314
2022GA31 Phys.Rev.Lett. 129, 242501 (2022) A.Gade, B.A.Brown, D.Weisshaar, D.Bazin, K.W.Brown, R.J.Charity, P.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, W.Reviol, J.A.Tostevin Dissipative Reactions with Intermediate-Energy Beams: A Novel Approach to Populate Complex-Structure States in Rare Isotopes NUCLEAR REACTIONS 9Be(38Ca, 38Ca'), E=60.9 MeV/nucleon; measured reaction products, Eγ, Iγ. 38Ca; deduced γ-ray energies and relative intensities, partial level scheme, multiparticle-multihole excited states, negative-parity, complex-structure final states. Comparison with shell model calculations. The Coupled Cyclotron Facility at NSCL, GRETINA array.
doi: 10.1103/PhysRevLett.129.242501
2022GA32 Phys.Rev. C 106, 064303 (2022) A.Gade, D.Weisshaar, B.A.Brown, D.Bazin, K.W.Brown, R.J.Charity, P.Farris, A.M.Hill, J.Li, B.Longfellow, D.Rhodes, W.Reviol, J.A.Tostevin Exploiting dissipative reactions to perform in-beam γ-ray spectroscopy of the neutron-deficient isotopes 38, 39Ca NUCLEAR REACTIONS 9Be(38Ca, 38Ca), (38Ca, 39Ca), E=60.9 MeV/nucleon; measured reaction products Eγ, Iγ, γγ-coin, (particle)γ-coin. 38,39Ca; deduced levels, J, π, high-spin states. Comparison to shell-model calculations using the FSU spsdf p interaction and experimental results for 39K mirror nuclei. High resolution γ-ray tracking array GRETINA coupled with S800 spectroraph. Beam from fragmentation of 40Ca 140 MeV/nucleon primary beam on 9Be target in the A1900 separator at Coupled Cyclotron Facility (NSCL).
doi: 10.1103/PhysRevC.106.064303
2022GI04 Phys.Rev. C 105, 044321 (2022) S.A.Gillespie, K.W.Brown, R.J.Charity, L.G.Sobotka, A.K.Anthony, J.Barney, A.Bonaccorso, B.A.Brown, J.Crosby, D.Dell'Aquila, J.Elson, J.Estee, A.Gade, M.Ghazali, G.Jhang, Y.Jin, B.Longfellow, W.G.Lynch, J.Pereira, M.Spieker, S.Sweany, F.C.E.Teh, A.Thomas, M.B.Tsang, C.Y.Tsang, D.Weisshaar, H.Y.Wu, K.Zhu Proton decay spectroscopy of 28S and 30Cl NUCLEAR REACTIONS 9Be(29S, n), (31Ar, p), E=150 MeV/nucleon; measured reaction products, Ep, Ip, Eγ, Iγ, (particle)p-coin, pγ-coin; deduced invariant mass, momentum distribution. Setup consisting of S800 spectrograph, Si-CsI(Tl) DSSD array of 128 concentric rings and 128 annular sectors, CAESAR CsI(Na) photon detection array, BC-400-type scintillation fiber detector at A1900 fragment separator (NSCL). RADIOACTIVITY 28S(p), (2p) [from 9Be(29S, n), E=150 MeV/nucleon]; 30Cl(p), (2p) [from 9Be(29S, n), E=150 MeV/nucleon]; measured Ep, Ip, Eγ, Iγ, pγ-coin; deduced total decay kinetic energy, decay energy spectrum. 30Cl; deduced levels, J, π, S(p). 28S; deduced levels, J, π, spectroscopic factors. Comparison to previous experimental results and shell model calculations.
doi: 10.1103/PhysRevC.105.044321
2022WA33 J.Phys.(London) G49, 10LT02 (2022) S.M.Wang, W.Nazarewicz, R.J.Charity, L.G.Sobotka Nucleon-nucleon correlations in the extreme oxygen isotopes RADIOACTIVITY 11,12O(2p), 26O(2n); calculated density distributions of two-nucleon decays, asymptotic energy and angular correlations of protons and neutrons, Jacobi-Y correlations of two protons emitted from the broad low-energy structure, two-neutron decay of threshold resonance in 26O. The Gamow coupled-channel (GCC) method.
doi: 10.1088/1361-6471/ac888f
2021CH19 Phys.Rev.Lett. 126, 132501 (2021) R.J.Charity, T.B.Webb, J.M.Elson, D.E.M.Hoff, C.D.Pruitt, L.G.Sobotka, K.W.Brown, G.Cerizza, J.Estee, W.G.Lynch, J.Manfredi, P.Morfouace, C.Santamaria, S.Sweany, C.Y.Tsang, M.B.Tsang, Y.Zhang, K.Zhu, S.A.Kuvin, D.McNeel, J.Smith, A.H.Wuosmaa, Z.Chajecki Observation of the Exotic Isotope 13F Located Four Neutrons beyond the Proton Drip Line NUCLEAR REACTIONS 9Be(13O, 13F), E=69.5 MeV/nucleon; measured reaction products, Ep, Ip. 13F, 12O, 11N, 10C, 9B, 8Be; deduced 13F resonance parameters, energy levels, J, π, level decays via initial proton emissions.
doi: 10.1103/PhysRevLett.126.132501
2021CH45 Phys.Rev. C 104, 024325 (2021) R.J.Charity, T.B.Webb, J.M.Elson, D.E.M.Hoff, C.D.Pruitt, L.G.Sobotka, P.Navratil, G.Hupin, K.Kravvaris, S.Quaglioni, K.W.Brown, G.Cerizza, J.Estee, W.G.Lynch, J.Manfredi, P.Morfouace, C.Santamaria, S.Sweany, M.B.Tsang, T.Tsang, K.Zhu, S.A.Kuvin, D.McNeel, J.Smith, A.H.Wuosmaa, Z.Chajecki Using spin alignment of inelastically excited nuclei in fast beams to assign spins: The spectroscopy of 13O as a test case NUCLEAR REACTIONS 9Be(13O, 13O'), E=69.5 MeV/nucleon, [secondary 13O beam from 9Be(16O, X), E=150 MeV/nucleon primary reaction, followed by separation of fragments using A1900 fragment separator at NSCL-MSU facility]; measured charged particles, angular distribution of protons in 1p- and 2p-decays of the excited states of 13O using High Resolution Array (HiRA) of 14 ΔE-E (Si-CsI(Tl)) telescopes; deduced invariant-mass distributions of the p+12N and 2p+11C events from the decay of 13O excited states. 13O; deduced levels, resonances, J, π, Γ, E(p), possibly rotational bands built on deformed cluster configurations predicted by antisymmetrized molecular dynamics (AMD) calculations. Comparison of p(θ) data with DWBA using FRESCO code, and level structure of 13O with ab initio no-core shell model with continuum (NCSMC), and with the structure of 13B mirror nucleus.
doi: 10.1103/PhysRevC.104.024325
2021CH54 Phys.Rev. C 104, 054307 (2021) R.J.Charity, T.B.Webb, L.G.Sobotka, K.W.Brown Spectroscopy of 10N with the invariant-mass method NUCLEAR REACTIONS 9Be(13O, 10N), E=65.4 MeV/nucleon; 9Be(9C, 10N), E=68 MeV/nucleon; measured charged particles, p(9C)-coin using the High Resolution Array (HiRA) of 14 ΔE-E (Si-CsI(Tl)) telescopes at NSCL-MSU facility; deduced invariant-mass distributions of the p+9C produced following knockout of one proton and two neutrons from 13O, and from one proton pickup from 9C, decay-energy distributions obtained from p+9C coincidences in the two experiments, with contamination from p+10C, p+11C and 2p+9C events. 10N; deduced level, resonance, L-value, J, π, Γ using R-matrix analysis. Comparison of resonance energy and width with theoretical models, and with predictions from complex scaling and Gamow shell model calculations.
doi: 10.1103/PhysRevC.104.054307
2021JI15 Phys.Rev.Lett. 127, 262502 (2021) Y.Jin, C.Y.Niu, K.W.Brown, Z.H.Li, H.Hua, A.K.Anthony, J.Barney, R.J.Charity, J.Crosby, D.Dell'Aquila, J.M.Elson, J.Estee, M.Ghazali, G.Jhang, J.G.Li, W.G.Lynch, N.Michel, L.G.Sobotka, S.Sweany, F.C.E.Teh, A.Thomas, C.Y.Tsang, M.B.Tsang, S.M.Wang, H.Y.Wu, C.X.Yuan, K.Zhu First Observation of the Four-Proton Unbound Nucleus 18Mg RADIOACTIVITY 18Mg(14O), (2p), (4p) [from 9Be(20Mg, X)18Mg, E=170 MeV/nucleon]; measured decay products, Ep, Ip, 18Mg, 16Ne; deduced decay energy spectra, level scheme, J, π, resonance parameters. Comparison with the Gamow shell model (GSM) calculations.
doi: 10.1103/PhysRevLett.127.262502
2021RU09 Phys.Rev. C 104, 044314 (2021) D.Rudolph, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, J.Ekman, C.Fahlander, P.Fallon, W.Reviol, D.G.Sarantites, D.Seweryniak Experimental and shell-model study of excited states in 5526Fe29 and related notes on 5529Cu26 NUCLEAR REACTIONS 28Si(32S, n4p)55Fe, E=125 MeV; measured Eγ, Iγ, (particle)γ-, γγ-coin, γγ(θ)(DCO) using the Gammasphere array for γ detection, 4π Microball system for charged particle detection, and the Neutron Shell array for neutron detection at ANL-ATLAS and LBNL cyclotron facilities. 55Fe; deduced high-spin levels, J, π, multipolarities, dipole structure, configurations. Comparison with shell-model calculations. NUCLEAR STRUCTURE 55Fe, 55Cu; calculated high-spin levels, J, π, level half-lives, B(E2), B(M1), γ-branching ratios, configurations, occupation numbers relative to 56Ni. Shell-model calculations with KB3G and GXPF1A interactions, with isospin breaking terms, using ANTOINE code. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.044314
2020AT01 Phys.Rev. C 101, 044303 (2020) M.C.Atkinson, M.H.Mahzoon, M.A.Keim, B.A.Bordelon, C.D.Pruitt, R.J.Charity, W.H.Dickhoff Dispersive optical model analysis of 208Pb generating a neutron-skin prediction beyond the mean field NUCLEAR REACTIONS 208Pb(p, X), (n, X), (p, p), (n, n), E=10-200 MeV; 208Pb(e, e), E=502 MeV; calculated reaction σ(E), differential σ(E, θ), analyzing powers Ay(θ) using dispersive optical model (DOM). Comparison with experimental data. NUCLEAR STRUCTURE 208Pb; calculated neutron and proton single-particle energy levels, charge density, orbital occupation and depletion numbers, spectroscopic factors, binding energies, momentum distributions of protons and neutrons. 40,48Ca, 208Pb; calculated proton and neutron point distributions, and neutron skins. Hartree-Fock and dispersive optical model (DOM) calculations. Comparison with experimental data. Relevance to nuclear equation of state.
doi: 10.1103/PhysRevC.101.044303
2020CH41 Phys.Rev. C 102, 044614 (2020) R.J.Charity, L.G.Sobotka, J.A.Tostevin Single-nucleon knockout cross sections for reactions producing resonance states at or beyond the drip line NUCLEAR REACTIONS 9Be(9C, 8B)p, (9C, 8C)n, E≈66.8 MeV/nucleon; 9Be(13O, 12N)p, (13O, 12O)n, E=65.4 MeV/nucleon; 9Be(17Ne, 16Ne)n, E=58.2 MeV/nucleon; analyzed experiments performed at NSCL-MSU using HiRA array of 14 Si-CsI(Tl) E-ΔE telescopes, and reported in 2010Ch42, 2011Ch32 and 2014Br15 publications for 9C beam, in 2019We11 for 13O beam, and in 2014Br19, 2018Ch25 and 2019Ch16 for 17Ne beam; deduced single-nucleon knockout cross sections and spectroscopic factors with emphasis on the production of resonance states in the residual nuclei, identified by their invariant mass, and resonances with two-, three-, and five-body exit channels. Comparison with eikonal-model predictions using spectroscopic factors from shell-model or variational Monte Carlo method. 9Be(13O, 12O)n, E=28.2 MeV/nucleon; analyzed experimental data from Texas A and M University Cyclotron facility, and reported in 2012Ja11 publication, for dependence of knockout cross sections on incident beam energy. 8B, 12N, 16Ne; deduced levels, resonances, J, π, isospin, widths, decay modes of resonances.
doi: 10.1103/PhysRevC.102.044614
2020GA23 Phys.Lett. B 808, 135637 (2020) A.Gade, D.Weisshaar, B.A.Brown, J.A.Tostevin, D.Bazin, K.Brown, R.J.Charity, P.J.Farris, A.M.Hill, J.Li, B.Longfellow, W.Reviol, D.Rhodes In-beam γ-ray spectroscopy at the proton dripline: 40Sc NUCLEAR REACTIONS 9Be(38Ca, X)40Sc, E=60.9 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π. Comparison with available data.
doi: 10.1016/j.physletb.2020.135637
2020PR09 Phys.Rev.Lett. 125, 102501 (2020) C.D.Pruitt, R.J.Charity, L.G.Sobotka, M.C.Atkinson, W.H.Dickhoff Systematic Matter and Binding-Energy Distributions from a Dispersive Optical Model Analysis NUCLEAR STRUCTURE 16,18O, 40,48Ca, 58,64Ni, 112,124Sn, 208Pb; analyzed available bound-state anscattering data; deduced neutronn skins, the interplay of asymmetry, Coulomb, and shell effects on the skin thickness.
doi: 10.1103/PhysRevLett.125.102501
2020PR10 Phys.Rev. C 102, 034601 (2020) C.D.Pruitt, R.J.Charity, L.G.Sobotka, J.M.Elson, D.E.M.Hoff, K.W.Brown, M.C.Atkinson, W.H.Dickhoff, H.Y.Lee, M.Devlin, N.Fotiades, S.Mosby Isotopically resolved neutron total cross sections at intermediate energies NUCLEAR REACTIONS 16,18O, 58,64Ni, 103Rh, 112,124Sn(n, X), E=3-450 MeV; measured E(n), I(n), σ(E) by time-of-flight using wave-form-digitizer technology and BC-400 fast plastic scintillators at the WNR facility of the Los Alamos Neutron Science Center; deduced spectroscopic factors for valence proton and neutron levels through a dispersive optical model (DOM) analyses of σ(θ) data. 16,18O, 58,64Ni, 103Rh, 112,124Sn(p, p), (polarized p, p), (n, n), E=10-200 MeV; analyzed experimental σ(E), σ(θ, E), Ay(θ, E) data in literature; deduced dispersive optical model (DOM) parameters, charge radii and binding energies. Comparison with previous experimental measurements of σ(E) using analog methods.
doi: 10.1103/PhysRevC.102.034601
2020RU04 Phys.Rev. C 102, 014316 (2020) D.Rudolph, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, J.Ekman, C.Fahlander, P.Fallon, W.Reviol, D.G.Sarantites, D.Seweryniak Single-particle and collective excitations in the N=28 isotones 54Fe and 53Mn NUCLEAR REACTIONS 28Si(32S, 3pα)53Mn, (32S, 2pα)54Fe, E=125 MeV; measured Eγ, Iγ, E(n), (particle)γ- and γγ-coin, γγ(θ)(DCO) using the Gammasphere array for γ detection, 4π Microball system for charged particle detection, and the Neutron Shell for neutron detection at ANL-ATLAS and LBNL facilities. 53Mn, 54Fe; deduced high-spin levels, J, π, multipolarities, band structures, alignments and configurations. Comparison with cranked Nilsson-Strutinsky calculations, and with large-scale shell model calculations in the fp shell with GXPF1A and KB3G interactions and isospin breaking terms.
doi: 10.1103/PhysRevC.102.014316
2020WE08 Phys.Rev. C 101, 044317 (2020) T.B.Webb, R.J.Charity, J.M.Elson, D.E.M.Hoff, C.D.Pruitt, L.G.Sobotka, K.W.Brown, J.Barney, G.Cerizza, J.Estee, W.G.Lynch, J.Manfredi, P.Morfouace, C.Santamaria, S.Sweany, M.B.Tsang, T.Tsang, Y.Zhang, K.Zhu, S.A.Kuvin, D.McNeel, J.Smith, A.H.Wuosmaa, Z.Chajecki Invariant-mass spectrum of 11O NUCLEAR REACTIONS 9Be(13O, 11O), E=69.5 MeV/nucleon; measured Ep, Ip, and invariant mass spectrum of 11O fragments from (9C)2p-coin events with two-proton emission from two states in 11O, longitudinal-momentum distributions using the HiRA array at NSCL-MSU facility. 11O; deduced levels, S(2p) for ground state.
doi: 10.1103/PhysRevC.101.044317
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
2019WA16 Phys.Rev. C 99, 054302 (2019) S.M.Wang, W.Nazarewicz, R.J.Charity, L.G.Sobotka Structure and decay of the extremely proton-rich nuclei 11, 12O NUCLEAR STRUCTURE 10,11N, 11,12O, 11Li, 12Be; calculated levels, J, π, 2p partial decay width of 12O. 11O, 11Li, 12Be, 12O; calculated levels, J, π, two-proton widths and configurations for mirror nuclei. 12C; calculated two-proton angular correlation. 6Be, 12O; calculated 2p density distributions. 11O, 11Li; calculated angular correlations between the valence nucleons in ground and excited states. 10N, 11O; calculated trajectories of the threshold resonances. Deformed core+nucleon+nucleon Gamow coupled channel (GCC) method. Comparison with experimental data. RADIOACTIVITY 6Be, 11,12O(2p); calculated 2p density distributions, decay widths. Deformed core+nucleon+nucleon Gamow coupled channel (GCC) method.
doi: 10.1103/PhysRevC.99.054302
2019WE03 Phys.Rev.Lett. 122, 122501 (2019) T.B.Webb, S.M.Wang, K.W.Brown, R.J.Charity, J.M.Elson, J.Barney, G.Cerizza, Z.Chajecki, J.Estee, D.E.M.Hoff, S.A.Kuvin, W.G.Lynch, J.Manfredi, D.McNeel, P.Morfouace, W.Nazarewicz, C.D.Pruitt, C.Santamaria, J.Smith, L.G.Sobotka, S.Sweany, C.Y.Tsang, M.B.Tsang, A.H.Wuosmaa, Y.Zhang, K.Zhu first Observation of Unbound 11O, the Mirror of the Halo Nucleus 11Li RADIOACTIVITY 11,12O(2p) [from 9Be(13O, xn)11O/12O, E<69.5 MeV/nucleon]; measured decay products, Ep, Ip; deduced an invariant-mass spectrum, resonant state widths, two-nucleon density distributions. Comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.122.122501
2019WE11 Phys.Rev. C 100, 024306 (2019); Erratum Phys.Rev. C 102, 019904 (2020) T.B.Webb, R.J.Charity, J.M.Elson, D.E.M.Hoff, C.D.Pruitt, L.G.Sobotka, K.W.Brown, J.Barney, G.Cerizza, J.Estee, G.Jhang, W.G.Lynch, J.Manfredi, P.Morfouace, C.Santamaria, S.Sweany, M.B.Tsang, T.Tsang, S.M.Wang, Y.Zhang, K.Zhu, S.A.Kuvin, D.McNeel, J.Smith, A.H.Wuosmaa, Z.Chajecki Particle decays of levels in 11, 12N and 12O investigated with the invariant-mass method NUCLEAR REACTIONS 9Be(13O, 12O), (13O, 12N), (13O, 11N), E=69.5 MeV/nucleon, [secondary 13O beam from 9Be(16O, 12O), E=150 MeV/nucleon primary reaction, followed by separation of ion beam using A1900 magnetic separator]; measured charged particles, (particle)(particle)-coin, cross sections using the High Resolution Array (HiRA) of 14 ΔE-E Si-CsI(Tl) telescopes at NSCL, MSU facility. 12,13O, 12N; deduced levels, J, π, 2p-, 3p-, 1p- and 2p+α-decay branches, p+10C, p+11C, 2p+10C invariance mass spectra, widths, total decay energy spectrum and invariant-mass spectra from coincident 4p+2α events. Comparison with Gamow coupled-channel (GCC) calculations, and with previous experimental data in the ENSDF database.
doi: 10.1103/PhysRevC.100.024306
2018AT02 Phys.Rev. C 98, 044627 (2018) M.C.Atkinson, H.P.Blok, L.Lapikas, R.J.Charity, W.H.Dickhoff Validity of the distorted-wave impulse-approximation description of 40Ca(e, e'p)39K data using only ingredients from a nonlocal dispersive optical model NUCLEAR REACTIONS 40Ca(e, e'p)39K, E=299-532 MeV; measured Ep, Ip, electron spectra, spectral strengths as function of excitation energy, and spectral functions in parallel kinematics using high-resolution magnetic spectrometers for charged particle detection at the Medium Energy Accelerator at Nikhef, Amsterdam. Comparison with calculations using dispersive optical model (DOM) for distorted wave impulse-approximation (DWIA). 39K; deduced levels, J, π, spectroscopic factors. 40Ca(p, p), (n, n), E=10-100 MeV; analyzed σ(θ, E) and analyzing powers Ay(θ, E) by nonlocal DOM description. 40Ca(p, X), E<200 MeV; analyzed σ(E) by nonlocal DOM description. 40Ca; analyzed charge density using the DOM propagator, and compared with experimental data.
doi: 10.1103/PhysRevC.98.044627
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
2018HO06 Phys.Rev. C 97, 054605 (2018) D.E.M.Hoff, G.Potel, K.W.Brown, R.J.Charity, C.D.Pruitt, L.G.Sobotka, T.B.Webb, B.Roeder, A.Saastamoinen Large longitudinal spin alignment generated in inelastic nuclear reactions NUCLEAR REACTIONS 9Be, 12C, 27Al(7Li, 7Li'), E=24.0 MeV/nucleon; measured breakup fragments of 7Li, excitation energy distributions, and efficiency-corrected angular correlations, differential σ(θ) at Texas A and M K-500 Cyclotron facility; deduced magnetic substate distribution, and presence of large longitudinal spin alignment in inelastically excited 7Li. Comparison with α+t DWBA cluster-model calculations.
doi: 10.1103/PhysRevC.97.054605
2018OK02 Phys.Rev. C 97, 044303 (2018) J.Okolowicz, M.Ploszajczak, R.J.Charity, L.G.Sobotka Collectivization of anti-analog strength above charged particle thresholds NUCLEAR REACTIONS 1H, C(12Be, 9Li), (12Be, 10Be), E=50 MeV/nucleon, [12Be secondary beam from 9Be(18O, X), E=120 MeV/nucleon]; measured charged particle spectra, (particle)(particle)-coin, angular correlations using HiRA array at NSCL-MSU facility. 9Li, 10Be; deduced levels, resonances, J, π, widths, strongly mixed excited states of lower isospin (T<) mediated by open neutron channels. Comparison with calculations using shell model embedded in the continuum (SMEC). Full details of the experiment available in 2008Ch28 paper.
doi: 10.1103/PhysRevC.97.044303
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
2017DI03 J.Phys.(London) G44, 033001 (2017) W.H.Dickhoff, R.J.Charity, M.H.Mahzoon Novel applications of the dispersive optical model
doi: 10.1088/1361-6471/44/3/033001
2017HO26 Phys.Rev.Lett. 119, 232501 (2017) D.E.M.Hoff, R.J.Charity, K.W.Brown, C.D.Pruitt, L.G.Sobotka, T.B.Webb, G.Potel, B.Roeder, A.Saastamoinen Large Longitudinal Spin Alignment of Excited Projectiles in Intermediate Energy Inelastic Scattering NUCLEAR REACTIONS 9Be, C, 27Al(7Li, X), E=24 MeV/nucleon; measured projectile sequential breakup products. 7Li; deduced for peripheral events that do not excite the target large spin alignment of the excited projectiles longitudinal to the beam axis.
doi: 10.1103/PhysRevLett.119.232501
2017MA76 Phys.Rev.Lett. 119, 222503 (2017) M.H.Mahzoon, M.C.Atkinson, R.J.Charity, W.H.Dickhoff Neutron Skin Thickness of 48Ca from a Nonlocal Dispersive Optical-Model Analysis NUCLEAR REACTIONS 48Ca(n, n), E not given; analyzed available data; deduced σ, σ(θ), neutron and proton numbers, and the charge distributions.
doi: 10.1103/PhysRevLett.119.222503
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
2016BO13 Few-Body Systems 57, 331 (2016) A.Bonaccorso, F.Carstoiu, R.J.Charity, R.Kumar, G.Salvioni Differences Between a Single- and a Double-Folding Nucleus-9Be Optical Potential NUCLEAR REACTIONS 9Be(8B, X), (8Li, X), (8C, X), E=100 MeV; analyzed available data; deduced neutron-, and nucleus-9Be imaginary potentials, energy dependent strong absorption radii and total reaction σ. Comparison with experimental values.
doi: 10.1007/s00601-016-1082-4
2016BO21 Phys.Rev. C 94, 034604 (2016) A.Bonaccorso, F.Carstoiu, R.J.Charity Imaginary part of the 9C-9Be single-folded optical potential NUCLEAR REACTIONS 9Be(9C, X), E=20, 38, 65, 83 MeV/nucleon; calculated nucleus-nucleus imaginary potentials for scattering of exotic light nuclei, the corresponding S matrices and total reaction σ(E) using a single-folding model where nucleus - 9Be target potential taken from a phenomenological fit to data over a large range of energies, and projectile densities from a series of microscopic calculations.
doi: 10.1103/PhysRevC.94.034604
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
2015RO17 Phys.Rev. C 92, 044607 (2015) A.Ross, L.J.Titus, F.M.Nunes, M.H.Mahzoon, W.H.Dickhoff, R.J.Charity Effects of nonlocal potentials on (p, d) transfer reactions NUCLEAR REACTIONS 40Ca(p, d)39Ca, E=20, 35, 50 MeV; 40Ca(p, p), E=50 MeV; calculated σ(θ) distributions using nonlocal potential obtained from non-local dispersive optical model (DOM) and DOM-phase equivalent (PE), combined with DWBA. Comparison with Perey-Buck (PB) optical potential predictions, and with experimental data.
doi: 10.1103/PhysRevC.92.044607
2014BO02 Phys.Rev. C 89, 024619 (2014) Optical potential for the n-9Be reaction NUCLEAR REACTIONS 9Be(n, n), (n, X), E=0.1-200 MeV; analyzed elastic, and reaction σ(E), σ(E, θ), neutron knockout cross sections by two parameterization of the optical-model potential: phenomenological used in earlier studies, and dispersive optical model (DOM). Comparison of the two approaches with experimental data.
doi: 10.1103/PhysRevC.89.024619
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
2014CA45 Phys.Rev. C 90, 064621 (2014) D.Carbone, M.Bondi, A.Bonaccorso, C.Agodi, F.Cappuzzello, M.Cavallaro, R.J.Charity, A.Cunsolo, M.De Napoli, A.Foti First application of the n- 9Be optical potential to the study of the 10Be continuum via the (18O, 17O) neutron-transfer reaction NUCLEAR REACTIONS 9Be(18O, 17O)10Be, E=84 MeV; measured E(17O) spectrum, angular distribution using MAGNEX spectrometer at tandem Van de Graaff facility of INFN-LNS. 10Be; deduced levels, J, π, resonances in the continuum. Breakup calculations describing the n-9Be interaction by means of an optical potential. Semi-classical approximation for the relative ion motion. Comparison between the measured cross section and the calculated using two parameterization of the optical potential.
doi: 10.1103/PhysRevC.90.064621
2014CH08 Eur.Phys.J. A 50, 23 (2014), Erratum Eur.Phys.J. A 50, 64 (2014) R.J.Charity, W.H.Dickhoff, L.G.Sobotka, S.J.Waldecker Isospin dependence of nucleon correlations in ground-state nuclei NUCLEAR STRUCTURE 102,106,112,124,130,132Sn; calculated proton orbit strength function, spectroscopic factor. 154Sn; calculated proton hole spectroscopic factor. 132Sn, 208Pb; calculated neutron states above the core, spectroscopic factor. Dispersive optical model.
doi: 10.1140/epja/i2014-14023-0
2014DU15 Phys.Rev. C 90, 061603 (2014) H.Dussan, M.H.Mahzoon, R.J.Charity, W.H.Dickhoff, A.Polls Elastic nucleon-nucleus scattering as a direct probe of correlations beyond the independent-particle model NUCLEAR REACTIONS 40Ca(p, p), (n, n), E<200 MeV; analyzed scattering and structure data using the full nonlocal treatment of the dispersive optical model (DOM). Discussed application for inverse kinematics reactions.
doi: 10.1103/PhysRevC.90.061603
2014MA18 Phys.Rev.Lett. 112, 162503 (2014) M.H.Mahzoon, R.J.Charity, W.H.Dickhoff, H.Dussan, S.J.Waldecker Forging the Link between Nuclear Reactions and Nuclear Structure NUCLEAR REACTIONS 40Ca(n, n), (p, p), E<200 MeV; calculated σ, σ(θ), spectral strength. Comparison with experimental data.
doi: 10.1103/PhysRevLett.112.162503
2014SA46 Phys.Lett. B 736, 137 (2014) A.Sanetullaev, M.B.Tsang, W.G.Lynch, Jenny Lee, D.Bazin, K.P.Chan, D.Coupland, V.Henzl, D.Henzlova, M.Kilburn, A.M.Rogers, Z.Y.Sun, M.Youngs, R.J.Charity, L.G.Sobotka, M.Famiano, S.Hudan, D.Shapira, W.A.Peters, C.Barbieri, M.Hjorth-Jensen, M.Horoi, T.Otsuka, T.Suzuki, Y.Utsuno Neutron spectroscopic factors of 55Ni hole-states from image transfer reactions NUCLEAR REACTIONS 1H(56Ni, d), E=37 MeV/nucleon; measured reaction products; deduced spectroscopic factors, J, π, σ(θ). Comparison with shell model calculations.
doi: 10.1016/j.physletb.2014.07.003
2013JI01 Phys.Rev.Lett. 110, 072701 (2013) C.L.Jiang, B.B.Back, H.Esbensen, R.V.F.Janssens, K.E.Rehm, R.J.Charity Origin and Consequences of 12C+12C Fusion Resonances at Deep Sub-barrier Energies NUCLEAR REACTIONS 12C(12C, X)24Mg, 12C(13C, X)25Mg, 13C(13C, X)26Mg, 12C(16O, X)28Si, 16O(16O, X)32S, E(cm)<10 MeV; analyzed available fusion σ, S-factors; deduced resonance behavior of fusion reactions at low energies.
doi: 10.1103/PhysRevLett.110.072701
2013LU10 Phys.Rev. C 88, 017604 (2013) F.Lu, J.Lee, M.B.Tsang, D.Bazin, D.Coupland, V.Henzl, D.Henzlova, M.Kilburn, W.G.Lynch, A.M.Rogers, A.Sanetullaev, Z.Y.Sun, M.Youngs, R.J.Charity, L.G.Sobotka, M.Famiano, S.Hudan, M.Horoi, Y.L.Ye Neutron-hole states in 45Ar from 1H(46Ar, d)45Ar reactions NUCLEAR REACTIONS 1H(46Ar, d), E=33 MeV/nucleon; measured E(d), I(d), σ(θ). Radioactive secondary beam of 46Ar produced in the Coupled Cyclotron facility at NSCL. 45Ar; deduced levels, J, π, L-transfer, spectroscopic factors. ADWA analysis. Comparison with spectroscopic factors determined in 2H(44Ar, p)45Ar reaction, and with shell-model calculations.
doi: 10.1103/PhysRevC.88.017604
2013SO11 Phys.Rev. C 87, 054329 (2013) L.G.Sobotka, W.W.Buhro, R.J.Charity, J.M.Elson, M.F.Jager, J.Manfredi, M.H.Mahzoon, A.M.Mukhamedzhanov, V.Eremenko, M.McCleskey, R.G.Pizzone, B.T.Roeder, A.Spiridon, E.Simmons, L.Trache, M.Kurokawa, P.Navratil Proton decay of excited states in 12N and 13O and the astrophysical 11C(p, γ)12N reaction rate NUCLEAR REACTIONS 9Be(13O, X), E=30.3 MeV/nucleon, [13O secondary beam from 1H(14N, X), E=38 MeV/nucleon primary reaction]; measured particle spectra, E(p), I(p), widths using MARS spectrometer at Texas AM cyclotron facility. Invariant mass method. R-matrix analysis. 11C, 12N, 13O; deduced levels, J, π, one-proton and two-proton decay branching ratios. 11C(p, γ)12N; deduced astrophysical reaction rates and S(E) factors.
doi: 10.1103/PhysRevC.87.054329
2012CH40 Phys.Rev. C 86, 041307 (2012) R.J.Charity, L.G.Sobotka, K.Hagino, D.Bazin, M.A.Famiano, A.Gade, S.Hudan, S.A.Komarov, Jenny Lee, S.P.Lobastov, S.M.Lukyanov, W.G.Lynch, C.Metelko, M.Mocko, A.M.Rogers, H.Sagawa, A.Sanetullaev, M.B.Tsang, M.S.Wallace, M.J.van Goethem, A.H.Wuosmaa Double isobaric analog of 11Li in 11B NUCLEAR REACTIONS 1H(12Be, 11B), E=50 MeV/nucleon; analyzed decay products, excitation energy via 2p+9Li events, mass excess. 11B; deduced level, J, π, width, double isobaric analog state of the two-neutron-halo system 11Lig.s.. Discussed T=5/2 isospin sextet using the isobaric multiplet mass equation.
doi: 10.1103/PhysRevC.86.041307
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
2012GR21 Phys.Rev. C 86, 061602 (2012) L.V.Grigorenko, I.A.Egorova, R.J.Charity, M.V.Zhukov Sensitivity of three-body decays to the reactions mechanism and the initial structure by example of 6Be NUCLEAR STRUCTURE 6Be; calculated excitation spectra of 0+ and 2+ states as function of the spin composition of the source function, dependence of the 6Be excitation spectra on the radius parameter r0 of the 7Be; analyzed neutron-knockout reactions on 7Be reaction mechanism, effects of initial-state structure, three-body decay. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.061602
2012JA11 Phys.Rev. C 86, 011304 (2012);Erratum Phys.Rev. C 86, 059902 (2012) M.F.Jager, R.J.Charity, J.M.Elson, J.Manfredi, H.Mohammad, L.G.Sobotka, M.McCleskey, R.G.Pizzone, B.T.Roeder, A.Spiridon, E.Simmons, L.Trache, M.Kurokawa Two-proton decay of 12O and its isobaric analog state in 12N NUCLEAR REACTIONS 9Be(13O, 12O), (13O, 12N), [13O secondary beam from 1H(14N, X), E=38 MeV/nucleon primary reaction], E=30.3 MeV/nucleon]; measured excitation energy spectra for p+11C, p+12C, 2p+10C, 2p+10B events. Two proton decay modes of g.s. of 12O and excited states of 12O and 12N. 12O, 12N; deduced levels, J, π, widths, IAS of 12O g.s. in 12N. 10B; deduced level, IAS in 10B from 2p decay of IAS in 12N. 13N; deduced level, J, π. RADIOACTIVITY 12O(2p)[9Be(13O, 12O), E=30.3 MeV/nucleon](2p); measured total excitation energy spectra for decay of g.s. of 12O. ATOMIC MASSES 12O, 12N; analyzed isobaric multiplet mass equation (IMME) for A=12 quintet; deduced mass excesses using the invariant mass method.
doi: 10.1103/PhysRevC.86.011304
2012LI37 Phys.Rev. C 86, 024605 (2012) T.X.Liu, W.G.Lynch, R.H.Showalter, M.B.Tsang, X.D.Liu, W.P.Tan, M.J.van Goethem, G.Verde, A.Wagner, H.F.Xi, H.S.Xu, M.A.Famiano, R.T.de Souza, V.E.Viola, R.J.Charity, L.G.Sobotka Isospin observables from fragment energy spectra NUCLEAR REACTIONS 112,124Sn(112Sn, X), (124Sn, X)1H/2H/3H/3He/4He/6He/6Li/7Li/8Li/9Li/7Be/9Be/10Be/11Be/10B/11B/12B/13B/11C/12C/13C/14C/15C/16C/14N/15N/16N/17N/18N/15O/16O/17O/18O/19O/20O, E=50 MeV/nucleon; measured energy spectra of light charged particles and intermediate mass fragments, fragment yields, σ(E) using LASSA, Miniball and Miniwall arrays at NSCL facility; deduced N/Z ratios.
doi: 10.1103/PhysRevC.86.024605
2012MA10 Phys.Rev. C 85, 037603 (2012) J.Manfredi, R.J.Charity, K.Mercurio, R.Shane, L.G.Sobotka, A.H.Wuosmaa, A.Banu, L.Trache, R.E.Tribble α decay of the excited states in 12C at 7.65 and 9.64 MeV NUCLEAR REACTIONS Be, C(10C, X)12C*, [secondary 10C beam from 10B(p, n)], E=107 MeV/nucleon; measured triple α events in coincidence mode, distribution of the root-mean-square energy deviation of the three α particles and E*(8Be); deduced α-decay properties of Hoyle state and 3- excited state through 8Be ground state. R-matrix analysis.
doi: 10.1103/PhysRevC.85.037603
2012SH21 Phys.Rev. C 85, 064612 (2012) R.Shane, R.J.Charity, L.G.Sobotka, D.Bazin, B.A.Brown, A.Gade, G.F.Grinyer, S.McDaniel, A.Ratkiewicz, D.Weisshaar, A.Bonaccorso, J.A.Tostevin Proton and neutron knockout from 36Ca NUCLEAR REACTIONS 9Be(36Ca, 35K), (36Ca, 35Ca), [36Ca secondary beam from 9Be(40Ca, X), E=140 MeV/nucleon primary reaction], E=70 MeV/nucleon; measured Eγ, particle spectra, time-of-flight, energy loss, cross sections, longitudinal-momentum distributions. 35K, 35Ca; deduced spectroscopic factors, orbital angular momenta of removed nucleons; calculated S matrices, bound-state wave-functions. Eikonal reaction theory, dispersive optical model (DOM) extrapolations. Shell-model spectroscopic factors from USD, USDA, and USDB interactions. 9Be(36Ca, X)33Ar, [33Ar from decay of unbound states in 35Ca], E=70 MeV/nucleon; measured σ; deduced missing spectroscopic strength.
doi: 10.1103/PhysRevC.85.064612
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
2011LE01 Phys.Rev. C 83, 014606 (2011) J.Lee, M.B.Tsang, D.Bazin, D.Coupland, V.Henzl, D.Henzlova, M.Kilburn, W.G.Lynch, A.M.Rogers, A.Sanetullaev, Z.Y.Sun, M.Youngs, R.J.Charity, L.G.Sobotka, M.Famiano, S.Hudan, D.Shapira, P.O'Malley, W.A.Peters, K.Y.Chae, K.Schmitt Neutron spectroscopic factors of 34Ar and 46Ar from (p, d) transfer reactions NUCLEAR REACTIONS 1H(34Ar, d), (36Ar, d), (46Ar, d), E=33 MeV/nucleon, [34,46Ar secondary beams from 9Be(36Ar, X), E=150 MeV/nucleon and 9Be(48Ca, X), E=140 MeV/nucleon primary reactions]; measured Ed, Id, σ(θ); 34,36,46Ar; deduced neutron ground-state spectroscopic factors. Comparison with shell model calculations.
doi: 10.1103/PhysRevC.83.014606
2011MA60 J.Korean Phys.Soc. 59, 943s (2011) D.Mancusi, J.Cugnon, A.Boudard, J.-C.David, S.Leray, R.J.Charity, A.Kelic-heil, M.V.Ricciardi Multifragmentation in Reactions of 1-GeV Protons with Iron Nuclei NUCLEAR REACTIONS 56Fe(p, X), E=1 GeV; calculated multifragmentation IMF residue yields, σ, charge distributions, 7Li, 10B longitudinal velocity distributions, neutron multiplicity, α multiplicity. GEMINI++, SPALADIN, ABLA07 codes with and without multifragmentation. Comparison to data.
doi: 10.3938/jkps.59.943
2011MU10 Phys.Rev. C 83, 064605 (2011) J.M.Mueller, R.J.Charity, R.Shane, L.G.Sobotka, S.J.Waldecker, W.H.Dickhoff, A.S.Crowell, J.H.Esterline, B.Fallin, C.R.Howell, C.Westerfeldt, M.Youngs, B.J.Crowe, III, R.S.Pedroni Asymmetry dependence of nucleon correlations in spherical nuclei extracted from a dispersive-optical-model analysis NUCLEAR REACTIONS 40,48Ca(n, n), E=11.9, 16.9 MeV; measured E(n), I(n), σ, σ(E, θ), time-of-flight spectra. 40Ca(n, n), E=9.9-85.0; 48Ca(n, n), E=7.97-16.9 MeV; 54Ca(n, n), E=5.5-26.0 MeV; 58,60Ni(n, n), E=4.5-24.0 MeV; 92Mo(n, n), E=7.0-30.4 MeV; 116,118Sn(n, n), E=9.95-24.0 MeV; 120Sn(n, n), E=9.94-16.91 MeV; 124Sn(n, n), E=11.0-24.0 MeV; 208Pb(n, n), E=4.0-185.0 MeV; 50Ti(p, p), E=6.0-65.0 MeV; 52Cr(p, p), E=10.77-39.9 MeV; 54Fe, 64Ni(p, p), E=9.69-65.0 MeV; 58Ni(p, p), E=7.0-192.0 MeV; 60Ni(p, p), E=7.0-178.0 MeV; 62Ni(p, p), E=8.02-156.0 MeV; 90Zr(p, p), E=5.57-185.0 MeV; 92Mo(p, p), E=12.5-49.45 MeV; 114Sn(p, p), E=30.4 MeV; 116Sn(p, p), E=16.0-61.4 MeV; 118,122,124Sn(p, p), E=16.0-49.35 MeV; 120Sn(p, p), E=9.8-156.0 MeV; 208Pb(p, p), E=9.0-200.0 MeV; analyzed total cross sections, σ(E, θ), single-particle levels, spectroscopic factors, occupation probabilities, mass dependence on cross section. Dispersal optical model (DOM) analysis.
doi: 10.1103/PhysRevC.83.064605
2011NG04 Phys.Rev. C 84, 044611 (2011) N.B.Nguyen, S.J.Waldecker, F.M.Nunes, R.J.Charity, W.H.Dickhoff Transfer reactions and the dispersive optical model NUCLEAR REACTIONS 40Ca(d, p), E=20, 56 MeV; 48Ca(d, p), E=2, 13, 19.3, 56 MeV; 132Sn(d, p), E=9.46 MeV; 208Pb(d, p), E=8, 20 MeV; analyzed optical potentials, σ(θ, E), spectroscopic factors. Test of dispersive optical potentials. Comparison with experimental data and with predictions of a standard global optical potential. Finite-range adiabatic (FR-ADWA) calculations in the range of closed-shell nuclei.
doi: 10.1103/PhysRevC.84.044611
2011RO18 Phys.Rev.Lett. 106, 252503 (2011) A.M.Rogers, M.A.Famiano, W.G.Lynch, M.S.Wallace, F.Amorini, D.Bazin, R.J.Charity, F.Delaunay, R.T.de Souza, J.Elson, A.Gade, D.Galaviz, M.-J.van Goethem, S.Hudan, J.Lee, S.Lobastov, S.Lukyanov, M.Matos, M.Mocko, H.Schatz, D.Shapira, L.G.Sobotka, M.B.Tsang, G.Verde Ground-State Proton Decay of 69Br and Implications for the 68Se Astrophysical Rapid Proton-Capture Process Waiting Point RADIOACTIVITY 69Br(p) [from Be(78Kr, X), E=140 MeV/nucleon]; measured reaction products, proton spectrum. 69Br, 68Se; deduced proton separation energy. Astrophysical implications, comparison with theoretical calculations.
doi: 10.1103/PhysRevLett.106.252503
2011RO55 J.Phys.:Conf.Ser. 312, 042020 (2011) A.M.Rogers, W.G.Lynch, M.A.Famiano, M.S.Wallace, F.Amorini, D.Bazin, R.J.Charity, F.Delaunay, R.T.de Souza, J.Elson, A.Gade, D.Galaviz, S.Hudan, J.Lee, S.Lobostov, S.Lukyanov, M.Matos, M.Mocko, M.B.Tsang, D.Shapira, L.G.Sobotka, G.Verde Ground-state proton decay of 69Br and implications for the rp-process 68Se waiting-point RADIOACTIVITY 69Br(p); measured in-flight Ep, Ip(θ), E(Se), I(Se), (Se)p-coin using HiRA telescopes; deduced p-spectra, proton separation energy, implications for 2p capture of rp process.
doi: 10.1088/1742-6596/312/4/042020
2010BA36 Nucl.Phys. A834, 788c (2010) C.Barbieri, R.J.Charity, W.H.Dickhoff, L.G.Sobotka Toward a Global Dispersive Optical Model for the Driplines NUCLEAR REACTIONS 40Ca(n, n), E=9-185 MeV; 40Ca(p, p), E=17.6-200 MeV; 42,44Ca(p, p), E=21-65 MeV; 48Ca(p, p), E=8-200 MeV; calculated σ(θ), analyzing power. 40,48Ca calculated levels, J, widths, radii, spectroscopic factors; deduced dispersive optical model parameters. 58,60,62,64Ni(p, p), E not given; calculated σ(θ). Comparison with data.
doi: 10.1016/j.nuclphysa.2010.01.147
2010CH26 Phys.Rev. C 82, 014610 (2010) Systematic description of evaporation spectra for light and heavy compound nuclei NUCLEAR REACTIONS 27Al(32S, X)59Cu, E=100-214 MeV; 27Al(40Ar, X)67Ga, E=187, 280 MeV; 12C(55Mn, X)67Ga, E=670 MeV; 64Ni(32S, X)96Ru, E=180 MeV; 74Ge(32S, X)106Cd, E=99-160 MeV; 77Se(40Ar, X)117Te, E=146 MeV; 103Rh(14N, X)117Te, E=81, 121 MeV; 96Zr(60Ni, X)156Er, E=333 MeV; 144Sm(12C, X)156Er, E=142 MeV; 121Sb(35Cl, X)156Er, E=218 MeV; 100Mo(60Ni, X)160Yb, E=300-546 MeV; 165Ho(28Si, X)193Tl, E=145-216 MeV; 181Ta(19F, X)200Pb, E=121-195 MeV; 208Pb(16O, X)224Th, E=114, 138 MeV; analyzed center-of-mass kinetic-energy spectra of α particles and protons in coincidence with evaporation residues from compound nuclei, σ for evaporation residues as function of the excitation energy of the compound nuclei. Statistical model of compound-nucleus (CN) decay. Improved GEMINI++ computer code for adequate description of the spectral shape of evaporation spectra over all of the periodic table.
doi: 10.1103/PhysRevC.82.014610
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
2010DI12 Phys.Rev. C 82, 054306 (2010) W.H.Dickhoff, D.Van Neck, S.J.Waldecker, R.J.Charity, L.G.Sobotka Nonlocal extension of the dispersive optical model to describe data below the Fermi energy NUCLEAR REACTIONS 40Ca(e, e'p), (p, 2p), E<150 MeV; calculated spectral functions, quasihole energies, spectroscopic factors, radii and charge density for proton orbits in 40Ca using dispersive-optical-model (DOM) analysis. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.054306
2010GA02 Phys.Rev. C 81, 014604 (2010) W.Gawlikowicz, D.K.Agnihotri, S.A.Baldwin, W.U.Schroder, J.Toke, R.J.Charity, D.G.Sarantites, L.G.Sobotka, R.T.deSouza, T.Barczyk, K.Grotowski, S.Micek, R.Planeta, Z.Sosin Correlations between reaction product yields as a tool for probing heavy-ion reaction scenarios NUCLEAR REACTIONS 209Bi(136Xe, X), E=28, 40, 62 MeV/nucleon; analyzed reaction product yields for neutrons, light charged particles (LCP), projectile like (PLF) and intermediate-mass fragments (IMFs). Comparison with classical transport code CLAT, quantum molecular dynamics (QMD) code, sequential decay code GEMINI and statistical multifragmentation code SMM.
doi: 10.1103/PhysRevC.81.014604
2010GR06 Phys.Rev. C 82, 014615 (2010) L.V.Grigorenko, I.A.Egorova, M.V.Zhukov, R.J.Charity, K.Miernik Two-proton radioactivity and three-body decay. V. Improved momentum distributions RADIOACTIVITY 6Be, 19Mg, 54Fe(2p); calculated classical trajectories, energy distribution, momentum density distribution contour maps, angular distributions and inclusive energies for true three-body decays. Exactly solvable semianalytical models with simplified three-body Hamiltonians. Discussed effect of screening by atomic electrons. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.014615
2010LE03 Phys.Rev.Lett. 104, 112701 (2010) J.Lee, M.B.Tsang, D.Bazin, D.Coupland, V.Henzl, D.Henzlova, M.Kilburn, W.G.Lynch, A.M.Rogers, A.Sanetullaev, A.Signoracci, Z.Y.Sun, M.Youngs, K.Y.Chae, R.J.Charity, H.K.Cheung, M.Famiano, S.Hudan, P.O'Malley, W.A.Peters, K.Schmitt, D.Shapira, L.G.Sobotka Neutron-Proton Asymmetry Dependence of Spectroscopic Factors in Ar Isotopes NUCLEAR REACTIONS 1H(34Ar, d), (36Ar, d), (46Ar, d), E=33 MeV/nucleon; measured Eδ, Iδ; 34,36,46Ar; deduced neutron ground state spectroscopic factors. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.104.112701
2010MA58 Phys.Rev. C 82, 044610 (2010) D.Mancusi, R.J.Charity, J.Cugnon Unified description of fission in fusion and spallation reactions NUCLEAR REACTIONS 90Zr(64Ni, X), 139La, 159W, 169Tm, 181Ta, 197Au(19F, X), 100Mo(60Ni, X), 150Sm(18O, X), 165Ho(28Si, X), 170Er, 186W(30Si, X), 184W(32S, X), 182W, 204Pb(12C, X), 208Pb(16O, X), E<10 MeV/nucleon; 208Pb(p, X), E=500, 1000 MeV; 181Ta(p, X), E=150-1200 MeV; 197Au, 238U(p, X), E=1 GeV; Au, Bi, U(p, X), E=2.5 GeV; calculated σ for fusion and evaporation residues as function of evaporation residue energy, residual mass distributions, fission probability using Monte-Carlo statistical models for fission in fusion and spallation reactions. Comparison with experimental data.
doi: 10.1103/PhysRevC.82.044610
2010RU01 J.Phys.(London) G37, 075105 (2010) D.Rudolph, I.Ragnarsson, W.Reviol, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, M.Cromaz, J.Ekman, C.Fahlander, P.Fallon, E.Ideguchi, A.O.Macchiavelli, M.N.Mineva, D.G.Sarantites, D.Seweryniak, S.J.Williams Rotational bands in the semi-magic nucleus 5728Ni29 NUCLEAR REACTIONS 28Si(32S, n2p)57Ni, E=130 MeV; measured Eγ, Iγ, γ-γ-coins.; deduced high-spin states, superdeformed rotational bands. Cranked Nilsson-Strutinsky calculations, GAMMASPHERE.
doi: 10.1088/0954-3899/37/7/075105
2010RU10 Phys.Rev. C 82, 054309 (2010) D.Rudolph, L.-L.Andersson, R.Bengtsson, J.Ekman, O.Erten, C.Fahlander, E.K.Johansson, I.Ragnarsson, C.Andreoiu, M.A.Bentley, M.P.Carpenter, R.J.Charity, R.M.Clark, P.Fallon, A.O.Macchiavelli, W.Reviol, D.G.Sarantites, D.Seweryniak, C.E.Svensson, S.J.Williams Isospin and deformation studies in the odd-odd N=Z nucleus 54Co NUCLEAR REACTIONS 28Si(32S, npα), E=130 MeV; measured Eγ, Iγ, γγ-, αγ-, nγ-, pγ-coin, γγ(θ) using Gammasphere and Microball arrays. 54Co; deduced levels, J, π, multipolarities, mixing ratios, configurations. Comparison with large-scale shell-model calculations in the fp shell.
doi: 10.1103/PhysRevC.82.054309
2010SH03 Nucl.Instrum.Methods Phys.Res. A614, 468 (2010) R.Shane, R.J.Charity, J.M.Elson, L.G.Sobotka, M.Devlin, N.Fotiades, J.M.O'Donnell Total neutron cross-sections for rare isotopes using a digital-signal-processing technique: Case study 48Ca NUCLEAR REACTIONS 40,48Ca(n, X), E=15-300 Mev; measured TOF, En, In; deduced σ.
doi: 10.1016/j.nima.2010.01.005
2009AN01 Phys.Rev. C 79, 024312 (2009) L.-L.Andersson, I.Ragnarsson, D.Rudolph, E.K.Johansson, D.A.Torres, C.Andreoiu, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, S.Zhu Comprehensive γ-ray spectroscopy of rotational bands in the N = Z + 1nucleus 61Zn NUCLEAR REACTIONS 36Ar(28Si, n2p), E=142, 148 MeV; measured Eγ, Iγ, γγ-coin, neutron and particle spectra. 61Zn; deduced levels, J, π, multipolarity, bands. Comparison with Cranked Nilsson-Strutinsky calculations.
doi: 10.1103/PhysRevC.79.024312
2009BA27 Phys.Rev.Lett. 102, 232501 (2009) D.Bazin, R.J.Charity, R.T.de Souza, M.A.Famiano, A.Gade, V.Henzl, D.Henzlova, S.Hudan, J.Lee, S.Lukyanov, W.G.Lynch, S.McDaniel, M.Mocko, A.Obertelli, A.M.Rogers, L.G.Sobotka, J.R.Terry, J.A.Tostevin, M.B.Tsang, M.S.Wallace Mechanisms in Knockout Reactions
doi: 10.1103/PhysRevLett.102.232501
2009CH38 Phys.Rev. C 80, 024306 (2009) R.J.Charity, T.D.Wiser, K.Mercurio, R.Shane, L.G.Sobotka, A.H.Wuosmaa, A.Banu, L.Trache, R.E.Tribble Continuum spectroscopy with a 10C beam: Cluster structure and three-body decay NUCLEAR REACTIONS Be, C(10C, X), E=10.7 MeV/nucleon; measured fragment spectra, σ(θ), proton-proton angular correlations, widths, σ, energy distributions of diproton, sequential two-proton, 2p+2α, p+3α and other cluster particle-decay modes from ground and excited resonant states. 10B, 10C, 13N; deduced levels, J, π, resonances, particle decay modes. Resonance-decay spectroscopic techniques. Monte Carlo analysis of energy distributions. Comparison with two-proton decay modes from 6Be and 45Fe.
doi: 10.1103/PhysRevC.80.024306
2009GE14 Phys.Rev. C 80, 051304 (2009) J.Gellanki, I.Ragnarsson, D.Rudolph, C.E.Svensson, L.-L.Andersson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Eberth, J.Ekman, C.Fahlander, D.S.Haslip, E.K.Johansson, D.R.LaFosse, S.D.Paul, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, H.G.Thomas, D.A.Torres, J.C.Waddington, J.N.Wilson, C.H.Yu, S.Zhu Characterization of superdeformed bands in 62Zn NUCLEAR REACTIONS 28Si(36Ar, 2p), E=140 MeV; 40Ca(28Si, 2pα), E=122 MeV; measured Eγ, Iγ, γγ-coin, DCO using Gammasphere array. 62Zn; deduced levels, J, π, moment of inertia, configurations. Comparison with cranked Nilsson-Strutinsky calculations.
doi: 10.1103/PhysRevC.80.051304
2009GR07 Phys.Lett. B 677, 30 (2009) L.V.Grigorenko, T.D.Wiser, K.Miernik, R.J.Charity, M.Pfutzner, A.Banu, C.R.Bingham, M.Cwiok, I.G.Darby, W.Dominik, J.M.Elson, T.Ginter, R.Grzywacz, Z.Janas, M.Karny, A.Korgul, S.N.Liddick, K.Mercurio, M.Rajabali, K.Rykaczewski, R.Shane, L.G.Sobotka, A.Stolz, L.Trache, R.E.Tribble, A.H.Wuosmaa, M.V.Zhukov Complete correlation studies of two-proton decays: 6Be and 45Fe NUCLEAR REACTIONS 1H(10B, n), E not given; Ni(58Ni, X)45Fe, E=161 MeV/nucleon; measured Ep, Ip, Eα, Iα, product energy and angular correlation distributions in a kinematically complete experiment. Comparison with three-body cluster model. RADIOACTIVITY 6Be, 45Fe(2p); measured energy and angular correlation distributions.
doi: 10.1016/j.physletb.2009.04.085
2009GR11 Phys.Rev. C 80, 034602 (2009) L.V.Grigorenko, T.D.Wiser, K.Mercurio, R.J.Charity, R.Shane, L.G.Sobotka, J.M.Elson, A.H.Wuosmaa, A.Banu, M.McCleskey, L.Trache, R.E.Tribble, M.V.Zhukov Three-body decay of 6Be NUCLEAR REACTIONS 1H(10B, n)10C, E=15 MeV/nucleon; measured Ep, Ip, Eα, Iα, energy and angular correlation distributions in a kinematically complete experiment. Comparison with three-body cluster model. RADIOACTIVITY 6Be(2p)[from 10C(α)]; measured Ep, Iπ, angular distributions. NUCLEAR STRUCTURE 6Be, 6He; calculated densities and radial properties of ground-state wave functions. Three-body hyperspherical-harmonics cluster model.
doi: 10.1103/PhysRevC.80.034602
2009JO03 Phys.Rev. C 80, 014321 (2009) E.K.Johansson, D.Rudolph, I.Ragnarsson, L.-L.Andersson, D.A.Torres, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu Thorough γ-ray and particle decay investigations of 58Ni NUCLEAR REACTIONS 28Si(36Ar, 2pα), E=136, 143, 148 MeV; measured Eγ, Iγ, Ep, Ip, Eα, (particle)γ-, nγ-, pγ-, αγ-, γγ-coin, γγ(θ), DCO. 58Ni; deduced levels, J, π, multipolarity, mixing ratio, bands and configurations. 57Co, 54Fe; deduced levels, J, π from prompt proton and α emission from 58Ni high-spin states. Comparison with large-scale shell model and cranked Nilsson-Strutinsky calculations.
doi: 10.1103/PhysRevC.80.014321
2008AN06 Eur.Phys.J. A 36, 251 (2008) L.-L.Andersson, D.Rudolph, E.K.Johansson, D.A.Torres, B.G.Carlsson, I.Ragnarsson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu Extensive γ-ray spectroscopy of normally and superdeformed structures in 6129Cu32 NUCLEAR REACTIONS 28Si(36Ar, 3p), E=142, 143, 148 MeV; measured Eγ, Iγ, En, In, charged-particle spectra, (proton)γ-, γγ-coin. 61Cu deduced energy levels, J, π, band structure, configurations, transition intensities and multipolarities using directional correlations of oriented states analysis. Comparison with shell model and cranked Nilsson-Strutinsky calculations. Gammasphere and Microball arrays. Enriched target.
doi: 10.1140/epja/i2008-10590-9
2008CH28 Phys.Rev. C 78, 054307 (2008) R.J.Charity, S.A.Komarov, L.G.Sobotka, J.Clifford, D.Bazin, A.Gade, J.Lee, S.M.Lukyanov, W.G.Lynch, M.Mocko, S.P.Lobastov, A.M.Rogers, A.Sanetullaev, M.B.Tsang, M.S.Wallace, R.G.T.Zegers, S.Hudan, C.Metelko, M.A.Famiano, A.H.Wuosmaa, M.J.van Goethem Investigation of particle-unbound excited states in light nuclei with resonance-decay spectroscopy using a 12Be beam NUCLEAR REACTIONS H, C(12Be, X), E=50 MeV/nucleon; measured particle spectra, (particle)(particle)-coin, angular distributions. 6,7,9Li, 8,9,10Be, 12,13B; deduced levels, J, π, widths, isospins.
doi: 10.1103/PhysRevC.78.054307
2008JO04 Phys.Rev. C 77, 064316 (2008) E.K.Johansson, D.Rudolph, L.-L.Andersson, D.A.Torres, I.Ragnarsson, C.Andreoiu, C.Baktash, M.P.Carpenter, R.J.Charity, C.J.Chiara, J.Ekman, C.Fahlander, C.Hoel, O.L.Pechenaya, W.Reviol, R.du Rietz, D.G.Sarantites, D.Seweryniak, L.G.Sobotka, C.H.Yu, S.Zhu Prompt proton decay and deformed bands in 56Ni NUCLEAR REACTIONS 28Si(36Ar, 2α), E=142, 143, 148 MeV; measured Eγ, Iγ, γγ-coin, angular distributions, multipolarities. 56Ni; deduced levels, J, π, bands, deformation parameters. Comparison with cranked Nilsson-Strutinsky calculations. RADIOACTIVITY 56Ni(p); measured proton spectra. 55Co; deduced levels, J, π.
doi: 10.1103/PhysRevC.77.064316
2008ME11 Phys.Rev. C 78, 031602 (2008) K.Mercurio, R.J.Charity, R.Shane, L.G.Sobotka, J.M.Elson, M.Famiano, A.H.Wuosmaa, A.Banu, C.Fu, L.Trache, R.E.Tribble, A.M.Mukhamedzhanov Correlated two-proton decay from 10C NUCLEAR REACTIONS Be, C(10C, 10C'), E=10.7 MeV; measured proton spectra, α spectra, αp-, pp-coin from excited states. 10C; deduced levels, correlated 2p decay mode.
doi: 10.1103/PhysRevC.78.031602
2008MO15 Phys.Rev. C 78, 024612 (2008) M.Mocko, M.B.Tsang, D.Lacroix, A.Ono, P.Danielewicz, W.G.Lynch, R.J.Charity Transport model simulations of projectile fragmentation reactions at 140 MeV/nucleon NUCLEAR REACTIONS 9Be(40Ca, X), (48Ca, X), (58Ni, X), (64Ni, X), E=140 MeV/nucleon; calculated excitation energies, fragmentation cross sections, transmission corrections, mass distributions. Comparison with experimental data. Heavy-ion phase space exploration and antisymmetrized molecular dynamics models.
doi: 10.1103/PhysRevC.78.024612
2008TO15 Phys.Rev. C 78, 054318 (2008) D.A.Torres, F.Cristancho, L.-L.Andersson, E.K.Johansson, D.Rudolph, C.Fahlander, J.Ekman, R.du Rietz, C.Andreoiu, M.P.Carpenter, D.Seweryniak, S.Zhu, R.J.Charity, C.J.Chiara, C.Hoel, O.L.Pechenaya, W.Reviol, D.G.Sarantites, L.G.Sobotka, C.Baktash, C.-H.Yu, B.G.Carlsson, I.Ragnarsson Deformations and magnetic rotations in the 60Ni nucleus NUCLEAR REACTIONS 28Si(36Ar, 4p), E=134, 143, 148 MeV; measured Eγ, Iγ, γγ-coin, angular distributions. 60Ni; deduced levels, J, π, multipolarity, mixing ratios, B(M1), B(E2). Comparison with cranked Nilsson Strutinsky calculations.
doi: 10.1103/PhysRevC.78.054318
2007CH39 Phys.Rev. C 75, 051304 (2007) R.J.Charity, K.Mercurio, L.G.Sobotka, J.M.Elson, M.Famiano, A.Banu, C.Fu, L.Trache, R.E.Tribble Decay of 10C excited states above the 2p + 2α threshold and the contribution from "democratic" two-proton emission NUCLEAR REACTIONS 9Be(10C, 10C), E=10.7 MeV/nucleon; measured Ep, Eα, 2p2α decay of the excited states; 10C; deduced level energies and intrinsic widths for particle unbound states.
doi: 10.1103/PhysRevC.75.051304
2007CH72 Phys.Rev. C 76, 044314 (2007) R.J.Charity, J.M.Mueller, L.G.Sobotka, W.H.Dickhoff Dispersive-optical-model analysis of the asymmetry dependence of correlations in Ca isotopes NUCLEAR REACTIONS 40Ca(p, p), E=17.57-200.0 MeV; 42,44Ca(p, p), E=21.0-65.0 MeV; 48Ca(p, p), E=8.0-200.0 MeV; 40Ca(n, n), E=9.9-185.0 MeV; analyzed differential cross sections, angular distributions, polarization asymmetry, widths, rms radii and spectroscopic factors. Deduced optical-model parameters. 60Ca, 70Ca deduced prediction for particle stability.
doi: 10.1103/PhysRevC.76.044314
2007CH81 Phys.Rev. C 76, 064313 (2007) R.J.Charity, S.A.Komarov, L.G.Sobotka, J.Clifford, D.Bazin, A.Gade, J.Lee, S.M.Lukyanov, W.G.Lynch, M.Mocko, S.P.Lobastov, A.M.Rogers, A.Sanetullaev, M.B.Tsang, M.S.Wallace, S.Hudan, C.Metelko, M.A.Famiano, A.H.Wuosmaa, M.J.van Goethem Particle decay of 12Be excited states NUCLEAR REACTIONS H, 12C(12Be, X), E=50 MeV/nucleon; measured charged particle spectra. 12Be; measured breakup cross sections for decay modes α+8He, 6He+6He, 3H+9Li, p+11Li; deduced excitation energies.
doi: 10.1103/PhysRevC.76.064313
2007HO01 Phys.Rev. C 75, 017601 (2007) C.Hoel, L.G.Sobotka, R.J.Charity Asymmetry dependence of the caloric curve for mononuclei
doi: 10.1103/PhysRevC.75.017601
2007KO43 Phys.Rev. C 75, 064611 (2007) S.Komarov, R.J.Charity, C.J.Chiara, W.Reviol, D.G.Sarantites, L.G.Sobotka, A.L.Caraley, M.P.Carpenter, D.Seweryniak Search for the fade out of a collective enhancement of the nuclear level density NUCLEAR REACTIONS 160Gd(18O, X)178Hf, E=79-156 MeV; measured Eα, Eγ, particle γ-coinc. Deduced total cross sections for xn channels. Compared results to model calculations.
doi: 10.1103/PhysRevC.75.064611
2007LI52 Phys.Rev. C 76, 034603 (2007) T.X.Liu, W.G.Lynch, M.B.Tsang, X.D.Liu, R.Shomin, W.P.Tan, G.Verde, A.Wagner, H.F.Xi, H.S.Xu, B.Davin, Y.Larochelle, R.T.de Souza, R.J.Charity, L.G.Sobotka Isospin diffusion observables in heavy-ion reactions
doi: 10.1103/PhysRevC.76.034603
2007MC06 Phys.Rev.Lett. 99, 132701 (2007) A.B.McIntosh, S.Hudan, C.J.Metelko, R.T.de Souza, R.J.Charity, L.G.Sobotka, W.G.Lynch, M.B.Tsang Tidal Effects and the Proximity Decay of Nuclei RADIOACTIVITY 8Be(α) [ from 92Mo(114Cd, X), E=50 MeV/nucleon]; measured Eα, Iα, relative α energies as a function of decay angle. Deduced evidence for tidal effect. Compared results to model calculations.
doi: 10.1103/PhysRevLett.99.132701
2007PE14 Phys.Rev. C 76, 011304 (2007) O.L.Pechenaya, C.J.Chiara, D.G.Sarantites, W.Reviol, R.J.Charity, M.P.Carpenter, R.V.F.Janssens, T.Lauritsen, C.J.Lister, D.Seweryniak, S.Zhu, L.-L.Andersson, E.K.Johansson, D.Rudolph Level structure of 92Rh: Implications for the two-proton decay of 94Agm NUCLEAR REACTIONS 40Ca(58Ni, npα), E=240 MeV; measured Eγ, Iγ, γγ-coinc, (particle)γ-coinc. 92Rh deduced levels, J, π.
doi: 10.1103/PhysRevC.76.011304
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