NSR Query Results
Output year order : Descending NSR database version of May 2, 2024. Search: Author = S.Sweany Found 10 matches. 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
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
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
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
2021MA55 Phys.Rev. C 104, 024608 (2021) J.Manfredi, J.Lee, A.M.Rogers, M.B.Tsang, W.G.Lynch, C.Anderson, J.Barney, K.W.Brown, B.Brophy, G.Cerizza, Z.Chajecki, G.Chen, J.Elson, J.Estee, H.Iwasaki, C.Langer, Z.Li, C.Loelius, C.Y.Niu, C.Pruitt, H.Setiawan, R.Showalter, K.Smith, L.G.Sobotka, S.Sweany, S.Tangwancharoen, J.R.Winkelbauer, Z.Xiao, Z.Xu Quenching of single-particle strengths in direct reactions NUCLEAR REACTIONS 1H(46Ar, d)45Ar, (34Ar, d)33Ar, E=70 MeV/nucleon; measured heavy reaction residues, outgoing E(d), I(d), (reaction residues)δ-coin, differential σ(θ) using High Resolution Array (HiRA) for deuterons and S800 spectrograph for residue products at NSCL-MSU facility, CH2 target; deduced spectroscopic factors and reduction factors for the final states, asymmetry dependence of reduction factors. Comparison with results of previous measurements, and theoretical calculations using large-basis shell model (LBSM). Relevance to single-nucleon knockout reactions.
doi: 10.1103/PhysRevC.104.024608
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
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
2018BR04 Phys.Lett. B 778, 155 (2018) J.Bradt, Y.Ayyad, D.Bazin, W.Mittig, T.Ahn, S.Beceiro Novo, B.A.Brown, L.Carpenter, M.Cortesi, M.P.Kuchera, W.G.Lynch, S.Rost, N.Watwood, J.Yurkon, J.Barney, U.Datta, J.Estee, A.Gillibert, J.Manfredi, P.Morfouace, D.Perez-Loureiro, E.Pollacco, J.Sammut, S.Sweany Study of spectroscopic factors at N = 29 using isobaric analogue resonances in inverse kinematics NUCLEAR REACTIONS 1H(46Ar, X), E<140 MeV/nucleon; measured reaction products, Ep, Ip. 46,47Ar, 47K; deduced energy levels, J, π, resonance widths. Comparison with R-matrix calculations.
doi: 10.1016/j.physletb.2018.01.015
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