NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = C.Hunt Found 15 matches. 2023BI03 Phys.Rev.Lett. 130, 222501 (2023) J.Bishop, G.V.Rogachev, S.Ahn, M.Barbui, S.M.Cha, E.Harris, C.Hunt, C.H.Kim, D.Kim, S.H.Kim, E.Koshchiy, Z.Luo, C.Park, C.E.Parker, E.C.Pollacco, B.T.Roeder, M.Roosa, A.Saastamoinen, D.P.Scriven First Observation of the β3αp Decay of 13O via β-Delayed Charged-Particle Spectroscopy RADIOACTIVITY 13O(β+p3α) [from 3He(14N, 13O), E=15.1 MeV/nucleon]; measured decay products, Eα, Iα. 13N; deduced β-delayed 3αp branching ratio, four previously unknown α-decaying excited states in 13N. Comparison with systematics. The K500 Cyclotron at Texas AM University, the Texas Active Target (TexAT) time projection chamber.
doi: 10.1103/PhysRevLett.130.222501
2023HU20 Phys.Rev. C 108, L051606 (2023) C.Hunt, S.Ahn, J.Bishop, E.Koshchiy, E.Aboud, M.Alcorta, A.Bosh, K.Hahn, S.Han, C.E.Parker, E.C.Pollacco, B.T.Roeder, M.Roosa, S.Upadhyayula, A.S.Volya, G.V.Rogachev Spectroscopy of 13Be through isobaric analog states in 13B
doi: 10.1103/PhysRevC.108.L051606
2022BA39 Phys.Rev. C 106, 054310 (2022) M.Barbui, A.Volya, E.Aboud, S.Ahn, J.Bishop, V.Z.Goldberg, J.Hooker, C.H.Hunt, H.Jayatissa, Tz.Kokalova, E.Koshchiy, S.Pirrie, E.Pollacco, B.T.Roeder, A.Saastamoinen, S.Upadhyayula, C.Wheldon, G.V.Rogachev α-cluster structure of 18Ne NUCLEAR REACTIONS 4He(14O, α), E=61.8 MeV; measured reaction product, Eα, Iα, angular distribution; deduced σ(θ), excitation function of 18Ne. 18Ne; deduced resonances J, π, resonance total and partial widths. 18Ne, O; calculated levels J, π. Analysis with a multichannel R-matrix approach. Shell model with FSU interaction Hamiltonian calculations. Comparison with other experimental data. TexAT active target at magnetic achromat recoil separator (Cyclotron Institute at Texas AM University).
doi: 10.1103/PhysRevC.106.054310
2022CI04 Phys.Rev. C 106, 014317 (2022) A.A.Ciemny, C.Mazzocchi, W.Dominik, A.Fijalkowska, J.Hooker, C.Hunt, H.Jayatissa, L.Janiak, G.Kaminski, E.Koshchiy, M.Pfutzner, M.Pomorski, B.Roeder, G.V.Rogachev, A.Saastamoinen, S.Sharma, N.Sokolowska, W.Satula, J.Singh β-delayed charged-particle decay of 22, 23Si RADIOACTIVITY 22,23Si(β+), (β+p), (β+2p); 23Si(β+3p), (β+α)[22,23Si activities from Ni(28Si, X), E=45 MeV/nucleon at the Texas A and M University K500 superconducting cyclotron, followed by separation of fragments using momentum achromat recoil separator (MARS)]; measured reaction fragments, particle spectra, E(p), I(p) using optical-readout time-projection chamber (OTPC). 23Al, 22Mg, 21Na; deduced levels, J, π. 22Si, 23Si; deduced T1/2 of ground states, and absolute branching ratios for the observed decay modes; calculated Gamow-Teller matrix elements using angular-momentum-projected (AMP) method with DFT-NCCI module. 23Al; calculated levels, J, π using multireference density-functional-rooted (DFT) calculations, and compared with shell-model calculations in literature. Comparison with previous experimental results.
doi: 10.1103/PhysRevC.106.014317
2021BI06 Phys.Rev. C 103, L051303 (2021) J.Bishop, G.V.Rogachev, S.Ahn, E.Aboud, M.Barbui, A.Bosh, J.Hooker, C.Hunt, H.Jayatissa, E.Koshchiy, R.Malecek, S.T.Marley, M.Munch, E.C.Pollacco, C.D.Pruitt, B.T.Roeder, A.Saastamoinen, L.G.Sobotka, S.Upadhyayula Evidence against the Efimov effect in 12C from spectroscopy and astrophysics RADIOACTIVITY 12N(β+); 12B(β-); measured β-delayed charged particles, Eα, Iα from the decay of 40-MeV 12N beam stopped inside the active-area of the TexAT (Texas Active target) TPC (Time Projection Chamber), Eγ, Iγ, γγ-coin from the decay of 12B using Gammasphere array at ANL. 12C; deduced no evidence for an hypothetical state predicted by Efimov effect at 7.458 MeV from a combined analysis of the two experiments involving charged-particle spectroscopy at Texas A and M, and γ-ray measurements at ANL, along with astrophysical rate calculations. Relevance to rate required for stars to undergo the red giant phase.
doi: 10.1103/PhysRevC.103.L051303
2021LI22 Phys.Rev. C 103, 044613 (2021) R.Linares, M.Sinha, E.N.Cardozo, V.Guimaraes, G.V.Rogachev, J.Hooker, E.Koshchiy, T.Ahn, C.Hunt, H.Jayatissa, S.Upadhyayula, B.Roeder, A.Saastomoinen, J.Lubian, M.Rodriguez-Gallardo, J.Casal, K.C.C.Pires, M.Assuncao, Y.Penionzhkevich, S.Lukyanov Elastic scattering measurements for the 10C+ 208Pb system at Elab = 66 MeV NUCLEAR REACTIONS 208Pb(10C, 10C), E=66 MeV, [10C secondary beam from 1H(10B, 10C), E=9.6 MeV/nucleon primary reaction, followed by selection of 10C beam by the Momentum Achromatic Recoil Spectrometer (MARS) at the K500 superconducting Cyclotron Institute of Texas A and M University]; measured elastically scattered 10C ions, angular distribution of scattered 10C, total σ using ΔE-E telescope of double-sided silicon strip detectors (DSSSDs); deduced suppression of the Fresnel peak. Comparison with optical model, coupled channels, and 3-body and 4-body continuum-discretized coupled-channels (CDCC) calculations using 9B+p, 6Be+α, and 8Be+p+p cluster configurations of 10C with a Brunnian (super-Borromean) structure; analyzed reaction cross sections in literature for the several projectiles on 208Pb target.
doi: 10.1103/PhysRevC.103.044613
2021OT02 Phys.Rev. C 104, 055806 (2021) S.Ota, G.Christian, W.N.Catford, G.Lotay, M.Pignatari, U.Battino, E.A.Bennett, S.Dede, D.T.Doherty, S.Hallam, F.Herwig, J.Hooker, C.Hunt, H.Jayatissa, A.Matta, M.Moukaddam, E.Rao, G.V.Rogachev, A.Saastamoinen, D.Scriven, J.A.Tostevin, S.Upadhyayula, R.Wilkinson (6Li, d) and (6Li, t) reactions on 22Ne and implications for s-process nucleosynthesis NUCLEAR REACTIONS 6Li(22Ne, d)26Mg, 6Li(22Na, t)25Mg, E=154 MeV; 2H(22Ne, p)23Ne, E not given; measured reaction products, E(d), I(d), E(p), I(p), Eγ, Iγ, 26Mg and 25Mg recoils, (26Mg)γ-coin, (25Mg)γ-coin, (particle)(particle)-coin, σ(θ) using TIARA Si detector array of two sets of Si detectors, 'Hyball' and 'Barrel', MDM high-resolution and broad range magnetic spectrometer, and array of four HPGe detectors at the K150 cyclotron of Texas A and M University. 23Ne, 25Mg, 26Mg; deduced levels, J, π, resonances, resonances in the Gamow window of 22Ne(α, n)25Mg reaction, spectroscopic factors, α-spectroscopic factors for 26Mg, resonance strengths, impact of 22Ne+α resonances on s-process nucleosynthesis; comparison of σ(θ) data with DWBA calculations using FRESCO code. Comparison with previous experimental results. 22Ne(α, n), (α, γ); calculated s-process overproduction factors in stars 3 and 5 times the mass of the sun for A=60-210 isotopes.
doi: 10.1103/PhysRevC.104.055806
2021ZA03 Phys.Lett. B 816, 136256 (2021) J.C.Zamora, V.Guimaraes, G.V.Rogachev, S.Ahn, J.Lubian, E.N.Cardozo, E.Aboud, M.Assuncao, M.Barbui, J.Bishop, A.Bosh, J.Hooker, C.Hunt, H.Jayatissa, E.Koshchiy, S.Lukyanov, R.O'Dwyer, Y.Penionzhkevich, B.T.Roeder, A.Saastamoinen, S.Upadhyayula Direct fusion measurement of the 8B proton-halo nucleus at near-barrier energies NUCLEAR REACTIONS 40Ar(8B, X), E=5.1 MeV/nucleon; measured reaction products; deduced fusion σ, barrier parameters. Universal Fusion Function (UFF) parameterization, comparison with available data.
doi: 10.1016/j.physletb.2021.136256
2020BI11 Phys.Rev. C 102, 041303 (2020) J.Bishop, G.V.Rogachev, S.Ahn, E.Aboud, M.Barbui, A.Bosh, C.Hunt, H.Jayatissa, E.Koshchiy, R.Malecek, S.T.Marley, E.C.Pollacco, C.D.Pruitt, B.T.Roeder, A.Saastamoinen, L.G.Sobotka, S.Upadhyayula Almost medium-free measurement of the Hoyle state direct-decay component with a TPC RADIOACTIVITY 12N(β+), (β+α)[from 3He(10B, 12N), E=11 MeV/nucleon at K500 cyclotron at the Cyclotron Institute at Texas A and M University, followed by isotopic separation using Momentum Achromatic Recoil Spectrometer]; measured β-delayed charged-particles using Texas active target time-projection chamber (TPC). 12C; deduced upper limit for the nonsequential component of the decay of the excited 0+, Hoyle state in an almost medium-free reaction. Comparison with previous experimental results, and with predictions from Faddeev calculations.
doi: 10.1103/PhysRevC.102.041303
2020BI15 Nucl.Instrum.Methods Phys.Res. A964, 163773 (2020) J.Bishop, G.V.Rogachev, S.Ahn, E.Aboud, M.Barbui, P.Baron, A.Bosh, E.Delagnes, J.Hooker, C.Hunt, H.Jayatissa, E.Koshchiy, R.Malecek, S.T.Marley, R.O'Dwyer, E.C.Pollacco, C.Pruitt, B.T.Roeder, A.Saastamoinen, L.G.Sobotka, S.Upadhyayula Beta-delayed charged-particle spectroscopy using TexAT RADIOACTIVITY 12N(IT), (EC), 12C(3α), 8Be(2α) [from 3He(10B, n)12N, E=11 MeV/nucleon]; measured decay products, Eα, Iα; deduced branching ratio of 12N to states in 12C above the 3-α threshold, the total branching ratio to the Hoyle state, 12N T1/2 using the β-delayed charged-particle-decay. Comparison with available data.
doi: 10.1016/j.nima.2020.163773
2020HU10 Phys.Rev. C 102, 014615 (2020) C.Hunt, G.V.Rogachev, S.Almaraz-Calderon, A.Aprahamian, M.Avila, L.T.Baby, B.Bucher, V.Z.Goldberg, E.D.Johnson, K.W.Kemper, A.N.Kuchera, W.P.Tan, I.Wiedenhover Observation of T = 3/2 isobaric analog states in 9Be using p + 8Li resonance scattering NUCLEAR REACTIONS 1H(8Li, 8Li), E(cm)=1.46-2.3 MeV, [secondary 8Li radioactive beam from 2H(7Li, 8Li), E=23.5, 27 MeV primary reaction]; measured energies of light and heavy recoils, (light recoils)(heavy recoils)-coin, differential σ(θ, E) using two annular Silicon strip detectors at RESOLUT radioactive nuclear beam facility of the FSU John D. Fox Superconducting Accelerator Laboratory. 9Be; deduced resonances J, π, width, T=3/2 IAS, spectroscopic factors from R-matrix analysis using MINRMATRIX code. Discussed isomirror properties for the T=3/2 A=9 isoquartet. Relevance to study of the structure of neutron-rich exotic nuclei through IAS.
doi: 10.1103/PhysRevC.102.014615
2020OT01 Phys.Lett. B 802, 135256 (2020) S.Ota, G.Christian, G.Lotay, W.N.Catford, E.A.Bennett, S.Dede, D.T.Doherty, S.Hallam, J.Hooker, C.Hunt, H.Jayatissa, A.Matta, M.Moukaddam, G.V.Rogachev, A.Saastamoinen, J.A.Tostevin, S.Upadhyayula, R.Wilkinson Decay properties of 22Ne + α resonances and their impact on s-process nucleosynthesis NUCLEAR REACTIONS 6Li(22Ne, d)26Mg, E=154 MeV; measured reaction products; deduced resonance parameters, n/γ branching ratio. Comparison with Monte Carlo calculations.
doi: 10.1016/j.physletb.2020.135256
2020UP01 Phys.Rev. C 101, 034604 (2020) S.Upadhyayula, G.V.Rogachev, J.Bishop, V.Z.Goldberg, J.Hooker, C.Hunt, H.Jayatissa, E.Koshchiy, E.Uberseder, A.Volya, B.T.Roeder, A.Saastamoinen Search for the high-spin members of the α:2n:α band in 10Be NUCLEAR REACTIONS 4He(6He, 6He), (6He, 6He'), E(cm)=4-9 MeV [secondary 6He beam from 2H(7Li, 6He), E=60 MeV]; measured reaction products, Eα, Iα, σ(E, θ), using silicon detector for α detection and the MARS spectrometer for secondary beam identification at the cyclotron facility of Texas A and M University. 10Be; deduced resonance parameters and upper limit of Γ(α)/Γ(α') for an yrast 6+ state at 13.5 MeV as the next member of the molecular α:2n:α rotational band in 10Be; no evidence found for a strong resonance at 13.5 MeV in the elastic and inelastic channels. GEANT4 Monte Carlo simulations. Comparison with theoretical predictions, and with previous experimental studies.
doi: 10.1103/PhysRevC.101.034604
2019HO14 Phys.Rev. C 100, 054618 (2019) J.Hooker, G.V.Rogachev, E.Koshchiy, S.Ahn, M.Barbui, V.Z.Goldberg, C.Hunt, H.Jayatissa, E.C.Pollacco, B.T.Roeder, A.Saastamoinen, S.Upadhyayula Structure of 9C through proton resonance scattering with the Texas Active Target detector NUCLEAR REACTIONS 1H(8B, p)9C*, E=60.8 MeV, [secondary 8B beam from 6Li(3He, n)8B, E=13.2 MeV/nucleon primary reaction, and using the Momentum Achromat Recoil Spectrometer (MARS) at the Cyclotron Institute of Texas A and M University]; measured charged products, 8B spectrum, Ep, (8Be)p-coin, angular distributions using TexAT time projection chamber (TPC) and CsI(Tl) scintillators. 9C; deduced levels, resonances, J, π, phase shifts, widths using R-matrix analysis. Comparison with previous experimental data, and with ab initio calculations in literature.
doi: 10.1103/PhysRevC.100.054618
2017HO10 Phys.Lett. B 769, 62 (2017) J.Hooker, G.V.Rogachev, V.Z.Goldberg, E.Koshchiy, B.T.Roeder, H.Jayatissa, C.Hunt, C.Magana, S.Upadhyayula, E.Uberseder, A.Saastamoinen Structure of 10N in 9C+p resonance scattering NUCLEAR REACTIONS 1H(9C, X)10N, E=23.4 MeV/nucleon; measured reaction products, Ep, Ip; deduced σ, J, π, resonance parameters.
doi: 10.1016/j.physletb.2017.03.025
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