NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = G.V.Rogachev Found 75 matches. 2024LU04 Phys.Rev. C 109, 025801 (2024) Z.Luo, M.Barbui, J.Bishop, G.Chubarian, V.Z.Goldberg, E.Harris, E.Koshchiy, C.E.Parker, M.Roosa, A.Saastamoinen, D.P.Scriven, G.V.Rogachev Radiative decay branching ratio of the Hoyle state
doi: 10.1103/PhysRevC.109.025801
2024NU01 Phys.Rev. C 109, 024607 (2024) A.K.Nurmukhanbetova, V.Z.Goldberg, A.Volya, D.K.Nauruzbayev, G.E.Serikbayeva, G.V.Rogachev R-matrix analysis of 22Ne states populated in 18O(α, α) resonant elastic scattering
doi: 10.1103/PhysRevC.109.024607
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
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
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
2023PA44 Nucl.Instrum.Methods Phys.Res. B541, 221 (2023) C.Park, S.Ahn, S.Bae, J.Bishop, S.M.Cha, K.Y.Chae, S.Do, G.M.Gu, K.I.Hahn, B.Hong, A.Kim, C.Kim, C.H.Kim, D.Kim, G.Kim, M.J.Kim, S.H.Kim, Y.H.Kim, Y.Kim, E.Koshchiy, B.Moon, C.E.Parker, G.V.Rogachev, A.Saastamoinen TexAT detector upgrade for 14O(α, p)17F cross section measurement NUCLEAR REACTIONS 4He(14N, α), E=2.97 MeV/nucleon; 4He(14O, p)17F, E(cm) = 7 MeV; measured reaction products, Eα, Iα, Ep, Ip; deduced σ. Comparison with available data. The Texas Active Target time projection chamber (TexAT) developed by Texas AM University.
doi: 10.1016/j.nimb.2023.04.056
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
2022GO03 Phys.Rev. C 105, 014615 (2022) V.Z.Goldberg, A.K.Nurmukhanbetova, A.Volya, D.K.Nauruzbayev, G.E.Serikbayeva, G.V.Rogachev α-cluster structure in 19F and 19Ne in resonant scattering NUCLEAR REACTIONS 15N(α, α), 15O(α, α), E*=5.3-8.6 MeV; 4He(15N, α), E=21, 40 MeV; analyzed available experimental σ(θ, E*) data, including authors' experimental TTIK data reported in a companion article: 2022Vo01: Phys. Rev. C 105, 014614 (2022), by R-matrix analysis using AZURE code. 19F, 19Ne; deduced levels, resonances, J, π, Γα in mirror nuclei. Comparison with theoretical results from model in authors' 2022Vo01 article.
doi: 10.1103/PhysRevC.105.014615
2022VO01 Phys.Rev. C 105, 014614 (2022) A.Volya, V.Z.Goldberg, A.K.Nurmukhanbetova, D.K.Nauruzbayev, G.V.Rogachev Lowest-energy broad α-cluster resonances in 19F NUCLEAR REACTIONS 4He(15N, α), E=21 MeV; measured reaction products, light recoils, α particles, excitation functions by the thick target inverse kinematic (TTIK) method at the DC-60 facilities at Nur Sultan-Kazakhstan. 19F; analyzed present data and previous experimental data for resonances in 19F from 15N(α, α) reaction using R-matrix method with AZURE code; deduced resonance parameters and spectroscopic factors from fits to experimental data; calculated energies and resonance parameters using configuration interaction methods with FSU interaction Hamiltonian, and compared with experimental data. Complete analysis of 50 resonances in 19F given in authors' companion article: 2022Go03: Phys. Rev. C 105, 014615 (2022).
doi: 10.1103/PhysRevC.105.014614
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
2020GO09 Phys.Atomic Nuclei 83, 513 (2020) New Era of Resonance Reaction Studies NUCLEAR REACTIONS 14C, 16O(α, α), 1H(13O, 13O), (8He, 8He), 13C(α, n), E<10 MeV/nucleon; analyzed available data. 9Li, 14F, 14B; deduced level schemes, J, π. Comparison with shell-model, ab initio calculations.
doi: 10.1134/S1063778820040110
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
2020JA02 Phys.Lett. B 802, 135267 (2020) H.Jayatissa, G.V.Rogachev, V.Z.Goldberg, E.Koshchiy, G.Christian, J.Hooker, S.Ota, B.T.Roeder, A.Saastamoinen, O.Trippella, S.Upadhyayula, E.Uberseder Constraining the 22Ne(α, γ))26Mg and 22Ne(α, n)25Mg reaction rates using sub-Coulomb α-transfer reactions NUCLEAR REACTIONS 6Li(22Ne, d), E(cm)=4.6 MeV; 6Li(22Ne, t), E(cm)=5.3 MeV; measured reaction products; deduced excitation energies, σ, resonance parameters, astrophysical rates.
doi: 10.1016/j.physletb.2020.135267
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
2019RI01 Phys.Rev.Lett. 122, 182701 (2019) N.Rijal, I.Wiedenhover, J.C.Blackmon, M.Anastasiou, L.T.Baby, D.D.Caussyn, P.Hoflich, K.W.Kemper, E.Koshchiy, G.V.Rogachev Measurement of d + 7Be Cross Sections for Big-Bang Nucleosynthesis NUCLEAR REACTIONS 2H(7Be, p), E=19.7 MeV; measured reaction products, Ep, Ip, Eα, Iα. 9B; deduced σ, resonance energies and widths, S-factor, reaction rates.
doi: 10.1103/PhysRevLett.122.182701
2018AV01 Phys.Rev. C 97, 014313 (2018) M.L.Avila, L.T.Baby, J.Belarge, N.Keeley, K.W.Kemper, E.Koshchiy, A.N.Kuchera, G.V.Rogachev, K.Rusek, D.Santiago-Gonzalez Sub-Coulomb 3He transfer and its use to extract three-particle asymptotic normalization coefficients NUCLEAR REACTIONS 6Li(13C, t)16O, E=7.72 MeV; measured triton spectra, σ(θ) using two ΔE-E counter telescopes at the tandem van de Graaff John D. Fox accelerator laboratory of Florida State University. 16O; deduced levels, J, π, spectroscopic factors and asymptotic normalization coefficients (ANCs) for 16O and 13C+3He overlaps, DWBA analysis of σ(θ) distributions for 0+, 3-, 2+ and 1- states in 16O.
doi: 10.1103/PhysRevC.97.014313
2017AG09 Phys.Rev. C 96, 024616 (2017) E.F.Aguilera, E.Martinez-Quiroz, P.Amador-Valenzuela, D.Lizcano, A.Garcia-Flores, J.J.Kolata, A.Roberts, G.V.Rogachev, G.F.Peaslee, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, Y.Chen, H.Jiang, M.Febbraro, P.A.DeYoung, T.L.Belyaeva Sub-barrier fusion of weakly bound 6Li with 58Ni NUCLEAR REACTIONS 58Ni(6Li, X), E=10.8, 11.5, 12.7, 13.2, 13.7, 14.4 MeV, [secondary pure 6Li beam from 3He(6Li, 6Li), E=31-38 MeV reaction]; measured σ(θ, E) for evaporated protons at the University of Notre Dame FN tandem accelerator facility; deduced proton multiplicities, fusion σ(E) and total reaction σ(E). Proton angular distributions compared with statistical model calculations using PACE2 code. Comparison of fusion σ(E) data with previous experimental data for this reaction and for the 6Li+59Co, 6Li+64Zn, and 6Li+64Ni systems. Comparison with theoretical calculations using one-dimensional barrier penetration model (BPM) and coupled-channel (CC) method using optical model potentials.
doi: 10.1103/PhysRevC.96.024616
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
2017KO31 Nucl.Instrum.Methods Phys.Res. A870, 1 (2017) E.Koshchiy, J.C.Blackmon, G.V.Rogachev, I.Wiedenhover, L.Baby, P.Barber, D.W.Bardayan, J.Belarge, D.Caussyn, E.D.Johnson, K.Kemper, A.N.Kuchera, L.E.Linhardt, K.T.Macon, M.Matos, B.S.Rasco, D.Santiago-Gonzalez ANASEN: The array for nuclear astrophysics and structure with exotic nuclei NUCLEAR REACTIONS 4He(6He, 6He), E=7-29 MeV; 4He(14N, p), E=35.6 MeV; measured reaction products, Eα, Iα; deduced σ(θ).
doi: 10.1016/j.nima.2017.07.030
2017MU17 Phys.Rev. C 96, 045811 (2017) A.M.Mukhamedzhanov, G.V.Rogachev Radiative capture reactions via indirect methods NUCLEAR REACTIONS 12C(6Li, dγ)16O, E=9.33 MeV; calculated angular distribution of photons (pd(θ)) proceeding through the wings of two subthreshold resonances 1- and 2+, developed a formalism of resonant indirect radiative capture reactions for triple and double differential cross sections. 12C(α, γ)16O, E=300 keV; deduced low-energy astrophysical factors for E1 and E2 transitions for radiative capture through indirect methods, and compared with experimental data.
doi: 10.1103/PhysRevC.96.045811
2017NA18 Phys.Rev. C 96, 014322 (2017) D.K.Nauruzbayev, V.Z.Goldberg, A.K.Nurmukhanbetova, M.S.Golovkov, A.Volya, G.V.Rogachev, R.E.Tribble Structure of 20Ne states in resonance 16O + α elastic scattering NUCLEAR REACTIONS 4He(16O, α)20Ne*, E=30 MeV; measured particle spectra, energy-time (E-T) spectrum, and excitation functions using Si detectors and thick target inverse kinematics (TTIK) method using the DC-60 cyclotron at Astana, Kazakhstan. 20Ne; deduced levels, resonances, α-cluster states, Γα using R-matrix analysis. Comparison with previous experimental and evaluated data, and with theoretical calculations using cluster-nucleon configuration interaction model (CNCIM).
doi: 10.1103/PhysRevC.96.014322
2016UB01 Phys.Lett. B 754, 323 (2016) E.Uberseder, G.V.Rogachev, V.Z.Goldberg, E.Koshchiy, B.T.Roeder, M.Alcorta, G.Chubarian, B.Davids, C.Fu, J.Hooker, H.Jayatissa, D.Melconian, R.E.Tribble Nuclear structure beyond the neutron drip line: The lowest energy states in 9He via their T = 5/2 isobaric analogs in 9Li NUCLEAR REACTIONS 1H(8He, 8He), (8He, X)9Li, E(cm)<4.5 MeV; measured reaction products. 9He; deduced energy levels, J, π. Comparison with available data.
doi: 10.1016/j.physletb.2016.01.014
2015AV01 Phys.Rev.Lett. 114, 071101 (2015) M.L.Avila, G.V.Rogachev, E.Koshchiy, L.T.Baby, J.Belarge, K.W.Kemper, A.N.Kuchera, A.M.Mukhamedzhanov, D.Santiago-Gonzalez, E.Uberseder Constraining the 6.05 MeV 0+ and 6.13 MeV 3- Cascade Transitions in the 12C(α, γ)16O Reaction Using the Asymptotic Normalization Coefficients NUCLEAR REACTIONS 6Li(12C, d), E=5, 7, 9 MeV; measured reaction products; deduced σ(θ), J, π, asymptotic normalization coefficients. Comparison with available data, DWBA calculations.
doi: 10.1103/PhysRevLett.114.071101
2015AV02 Phys.Rev. C 91, 048801 (2015) M.L.Avila, G.V.Rogachev, E.Koshchiy, L.T.Baby, J.Belarge, K.W.Kemper, A.N.Kuchera, D.Santiago-Gonzalez New measurement of the α asymptotic normalization coefficient of the 1/2+ state in 17O at 6.356 MeV that dominates the 13C(α, n)16O reaction rate at temperatures relevant for the s process NUCLEAR REACTIONS 6Li(13C, d)17O, E=8 MeV; measured deuteron spectra, σ(θ) using ΔE-E telescopes at FSU Tandem accelerator facility. 17O; deduced levels, squared Coulomb-modified asymptotic normalization coefficient (ANC) and spectroscopic factor Sα for 1/2+ state at 6.356 MeV. Relevance to astrophysical s process and reaction rate for the 13C(α, n)16O at T<100 MK.
doi: 10.1103/PhysRevC.91.048801
2014AV04 Phys.Rev. C 90, 024327 (2014) M.L.Avila, G.V.Rogachev, V.Z.Goldberg, E.D.Johnson, K.W.Kemper, Yu.M.Tchuvil'sky, A.S.Volya α-cluster structure of 18O NUCLEAR REACTIONS 4He(14C, α), E=14.9 MeV; measured Eα, Iα, differential σ(E), partial α- and neutron-decay widths at FSU Superconducting linear accelerator facility. 18O; deduced levels, resonances, J, π, widths, reduced α widths. Multilevel, multichannel R-matrix analysis. Discussed rotational bands, and α-cluster structure with reference to those in 16O and 20Ne. Comparison with cluster-nucleon configuration interaction model calculations, and with earlier experimental results.
doi: 10.1103/PhysRevC.90.024327
2014AV05 Phys.Rev. C 90, 042801 (2014) M.L.Avila, G.V.Rogachev, E.Koshchiy, L.T.Baby, J.Belarge, K.W.Kemper, A.N.Kuchera, D.Santiago-Gonzalez α-cluster asymptotic normalization coefficients for nuclear astrophysics NUCLEAR REACTIONS 6Li(16O, d)20Ne, E=12.75 MeV; measured deuteron spectra, ΔE-E plot, σ(θ) for 1- state at 5.79 MeV at FSU's Tandem accelerator facility. 20Ne; deduced levels, α width as a function of binding energy of 1- state at 5.79 MeV, asymptotic normalization coefficients (ANCs). DWBA analysis of σ(θ) data. Comparison with known α width. Relevance to astrophysically important reaction rates.
doi: 10.1103/PhysRevC.90.042801
2014GO11 Acta Phys.Pol. B45, 309 (2014) V.Z.Goldberg, G.V.Rogachev, R.E.Tribble Test of Modern Theoretical Approaches Using Modern Experimental Methods NUCLEAR REACTIONS 1H(13O, X)14F E=31 MeV/nucleon; 1H(7Be, p), (7Be, p'), E(cm)=1.6-3.4 MeV; measured reaction products; deduced σ(θ), energy levels, J, π, resonance widths. Comparison with ab initio theory.
doi: 10.5506/APhysPolB.45.309
2014MY05 J.Exper.Theo.Phys. 119, 663 (2014); Zh.Eksp.Teor.Fiz. 146, 754 (2014) N.A.Mynbayev, A.K.Nurmukhanbetova, V.Z.Goldberg, M.S.Golovkov, G.V.Rogachev, V.N.Dzyubin, M.V.Koloberdin, I.A.Ivanov, R.E.Tribble Study of the excitation function for the 13C + 4He elastic scattering with the thick-target inverse kinematics method NUCLEAR REACTIONS 4He(13C, 13C), E=1.75 MeV/nucleon; measured reaction products, Eα, Iα. 17O; deduced σ(θ).
doi: 10.1134/S1063776114090064
2013MI05 Phys.Rev. C 87, 054617 (2013) J.P.Mitchell, G.V.Rogachev, E.D.Johnson, L.T.Baby, K.W.Kemper, A.M.Moro, P.Peplowski, A.S.Volya, I.Wiedenhover Structure of 8B from elastic and inelastic 7Be+p scattering NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), [secondary 7Be from 1H(7Li, 7Bi), E=9 MeV primary reaction], E=18.5, 22, 27.2 MeV; measured particle spectra, (7Be)p-coin, differential σ(E) at FSU accelerator facility. 8B; deduced levels, resonances, J, π, proton and total widths, spectroscopic factors, phase shifts. 7Be(p, p), (p, p'); analysis of excitation function by R-matrix method. 7Li(n, γ); calculated σ as function of excitation energy using TDCSM model. 7Li(n, n), (n, n'), E(cm)=0.1-1.4 MeV; analyzed σ by R-matrix theory. Comparison of σ and phase shifts with predictions of TDCSM model and ab initio no-core shell model coupled with the resonating group method (NCSM/RGM) calculations.
doi: 10.1103/PhysRevC.87.054617
2012GO11 J.Phys.:Conf.Ser. 337, 012008 (2012) V.Z.Goldberg, B.T.Roeder, G.V.Rogachev, G.G.Chubarian, E.D.Johnson, C.Fu, A.A.Alharbi, M.L.Avila, A.Banu, M.McCleskey, J.P.Mitchell, E.Simmons, G.Tabacaru, L.Trache, R.E.Tribble Resonance Scattering to Study Exotic Nuclei at the Limits of Stability NUCLEAR REACTIONS 1H(13O, 13O), E≈11 MeV/nucleon;measured thick target charged reaction products. 14F deduced levels, widths, J, π, σ(θ); calculated 14F resonance levels, widths, J, π, σ(θ) using R-matrix, 14F levels, J, π using shell model and ab initio calculations. 1H(8He, 8He), E=cyclotron; calculated, re-analyzed published results considering virtual 2s resonance in 9He.
doi: 10.1088/1742-6596/337/1/012008
2012GO20 Phys.Rev. C 86, 044314 (2012) Level structure of 10C NUCLEAR STRUCTURE 10B, 10Be, 10C; calculated levels, J, π, Coulomb shifts, widths, spectroscopic factors. Potential model prediction, and the shell-model calculations. T=1 isobaric multiplet. Comparison with experimental data.
doi: 10.1103/PhysRevC.86.044314
2012LA29 Phys.Rev.Lett. 109, 232701 (2012) M.La Cognata, C.Spitaleri, O.Trippella, G.G.Kiss, G.V.Rogachev, A.M.Mukhamedzhanov, M.Avila, G.L.Guardo, E.Koshchiy, A.Kuchera, L.Lamia, S.M.R.Puglia, S.Romano, D.Santiago, R.Sparta Measurement of the -3 keV Resonance in the Reaction 13C(α, n)16O of Importance in the s-Process NUCLEAR REACTIONS 13C(6Li, X)16O, E=7.82 MeV; measured reaction products, deuterons; deduced σ(θ, E), S-factors. Comparison with available data.
doi: 10.1103/PhysRevLett.109.232701
2012RO32 Prog.Theor.Phys.(Kyoto), Suppl. 196, 184 (2012) G.V.Rogachev, M.Avila, S.Cherubini, V.Z.Goldberg, M.Gulino, E.D.Johnson, A.N.Kuchera, M.La Cognata, L.Lamia, S.Romano, L.E.Miller, R.G.Pizzone, G.G.Rapisarda, M.L.Sergi, C.Spitaleri, R.E.Tribble, W.H.Trzaska, A.Tumino Clustering in Non-Self-Conjugate Nuclei NUCLEAR REACTIONS 9Be(p, α), E(cm)=2-5.5 MeV; 4He(14C, X)18O, E(cm)=2-7 MeV; measured reaction products, Eα, Iα; deduced σ(θ), resonance parameters. Comparison with available data, R-matrix fit.
doi: 10.1143/PTPS.196.184
2011KU24 Phys.Rev. C 84, 054615 (2011); Erratum Phys.Rev. C 85, 069902 (2012); Erratum Phys.Rev. C 88, 039901 (2013) A.N.Kuchera, G.V.Rogachev, V.Z.Goldberg, E.D.Johnson, S.Cherubini, M.Gulino, M.La Cognata, L.Lamia, S.Romano, L.E.Miller, R.G.Pizzone, G.G.Rapisarda, M.L.Sergi, C.Spitaleri, R.E.Tribble, W.H.Trzaska, A.Tumino Molecular structures in T=1 states of 10B NUCLEAR REACTIONS 1H(9Be, α)6Li*, E=22.3-55.6 MeV; measure Eα, Iα, particle spectra, σ(E, θ). 10B; deduced levels, J, π, isospin, widths, cluster state, highly deformed molecular type rotational band. R-matrix analysis of excitation functions and angular distributions. Comparison with level structure in 10Be.
doi: 10.1103/PhysRevC.84.054615
2011NO07 Eur.Phys.J. A 47, 73 (2011) M.Norrby, T.Lonnroth, V.Z.Goldberg, G.V.Rogachev, M.S.Golovkov, K.-M.Kallman, M.Lattuada, S.V.Perov, S.Romano, B.B.Skorodumov, G.P.Tiourin, W.H.Trzaska, A.Tumino, A.N.Vorontsov Highly excited alpha-cluster states in 34S NUCLEAR REACTIONS 4He(30Si, α), E=150 MeV; measured thick target Eα, Iα(θ). 34S; deduced levels, resonances, J, π, L-transfers, dσ(Eα), σ(θ), Γα/Γ, Γ, resonance parameters. R-matrix analysis.
doi: 10.1140/epja/i2011-11073-8
2011NO12 Eur.Phys.J. A 47, 96 (2011) M.Norrby, T.Lonnroth, V.Z.Goldberg, G.V.Rogachev, M.S.Golovkov, K.-M.Kallman, M.Lattuada, S.V.Perov, S.Romano, B.B.Skorodumov, G.P.Tiourin, W.H.Trzaska, A.Tumino, A.N.Vorontsov Elastic alpha-particle resonances as evidence of clustering at high excitation in 40Ca NUCLEAR REACTIONS 4He(36Ar, 36Ar), E=150 MeV; measured thick target Eα, Iα(θ). 40Ca deduced resonance parameters, moments of inertia.
doi: 10.1140/epja/i2011-11096-1
2010GO16 Phys.Lett. B 692, 307 (2010) V.Z.Goldberg, B.T.Roeder, G.V.Rogachev, G.G.Chubarian, E.D.Johnson, C.Fu, A.A.Alharbi, M.L.Avila, A.Banu, M.McCleskey, J.P.Mitchell, E.Simmons, G.Tabacaru, L.Trache, R.E.Tribble First observation of 14F NUCLEAR REACTIONS 1H(13O, X)14F, E=31 MeV/nucleon; 1H(14O, 14O), E=154 MeV; measured reaction products, proton spectra; deduced σ(θ), J, π, level scheme, resonances. Comparison with shell model calculations.
doi: 10.1016/j.physletb.2010.07.054
2010JO08 J.Phys.:Conf.Ser. 205, 012011 (2010) E.D.Johnson, G.V.Rogachev, V.Z.Goldberg, S.Brown, D.Robson, A.M.Crisp, P.D.Cottle, C.Fu, J.Giles, B.W.Green, K.W.Kemper, K.Lee, B.T.Roeder, R.E.Tribble Clustering in N ≠ Z nuclei NUCLEAR REACTIONS 4He(14C, 14C), E=25 MeV; measured resonance elastic scattering, Eα, Iα(θ); deduced σ, σ(θ); calculated σ, σ(θ) using R-matrix; deduced resonance parameters, α-widths, n-widths. 4He(14C, 18O), E≈1-100 keV; calculated, analyzed reaction data using DWBA σ and Coulomb modified ANC; deduced reaction rates, asymptotic normalization coefficients, influence of cluster resonant and nonresonant capture.
doi: 10.1088/1742-6596/205/1/012011
2010LO12 Eur.Phys.J. A 46, 5 (2010) T.Lonnroth, M.Norrby, V.Z.Goldberg, G.V.Rogachev, M.S.Golovkov, K.-M.Kallman, M.Lattuada, S.V.Perov, S.Romano, B.B.Skorodumov, G.P.Tiourin, W.H.Trzaska, A.Tumino, A.N.Vorontsov Highly excited alpha-cluster states in 32S studied with the thick-target inverse kinematics method NUCLEAR REACTIONS 4He(28Si, 28Si), E=150 MeV; measured thick target Eγ, Iγ, Eα, Iα(θ); deduced resonances E, J, π, α widths, resonance parameters, σ(θ); calculated σ(θ) using R-matrix. Comparison to other data.
doi: 10.1140/epja/i2010-11021-2
2010MI12 Phys.Rev. C 82, 011601 (2010) J.P.Mitchell, G.V.Rogachev, E.D.Johnson, L.T.Baby, K.W.Kemper, A.M.Moro, P.N.Peplowski, A.Volya, I.Wiedenhover Low-lying states in 8B NUCLEAR REACTIONS 1H(7Be, 7Be), (7Be, 7Be'), E=18.5, 22.0 MeV, [secondary 7Be beam from primary 1H(7Li, 7Be) reaction]; measured recoil proton and 7Be spectra, (proton)(7Be)-coin, excitation functions and angular distributions. 8B; deduced levels, J, π, partial proton widths and total widths. R-matrix and time-dependent continuum shell model (TDCSM) analysis. Comparison with low-lying level structure of mirror nucleus 8Li.
doi: 10.1103/PhysRevC.82.011601
2009JO07 Phys.Rev. C 80, 045805 (2009) E.D.Johnson, G.V.Rogachev, J.Mitchell, L.Miller, K.W.Kemper 14C(α, γ) reaction rate NUCLEAR REACTIONS 6Li(14C, d), E=8.8 MeV; 7Li(14C, t), E=11.5 MeV; measured Ed, Id, Et, It, σ, σ(θ). 18O; deduced levels, J, π. 14C(α, γ)18O; deduced astrophysical S factors, reaction rates, and asymptotic normalization coefficients (ANCs).
doi: 10.1103/PhysRevC.80.045805
2009JO08 Eur.Phys.J. A 42, 135 (2009) E.D.Johnson, G.V.Rogachev, V.Z.Goldberg, S.Brown, D.Robson, A.M.Crisp, P.D.Cottle, C.Fu, J.Giles, B.W.Green, K.W.Kemper, K.Lee, B.T.Roeder, R.E.Tribble Extreme α-clustering in the 18O nucleus NUCLEAR REACTIONS 4He(14C, 14C), E=25 MeV; measured σ(E, θ). 18O; deduced levels, widths, J, π using R-matrix analysis.
doi: 10.1140/epja/i2009-10887-1
2008FU07 Phys.Rev. C 77, 064314 (2008) C.Fu, V.Z.Goldberg, G.V.Rogachev, G.Tabacaru, G.G.Chubarian, B.Skorodumov, M.McCleskey, Y.Zhai, T.Al-Abdullah, L.Trache, R.E.Tribble First observation of α-cluster states in the 14O + 4He interaction NUCLEAR REACTIONS 14O(α, α), E=2-5 MeV; measured σ, σ(θ). 18Ne; deduced levels, J, π, resonance parameters, excitation spectrum.
doi: 10.1103/PhysRevC.77.064314
2008SK06 Phys.Rev. C 78, 044603 (2008) B.B.Skorodumov, G.V.Rogachev, A.Aprahamian, V.Z.Goldberg, J.J.Kolata, S.Almaraz, H.Amro, E.D.Johnson, L.O.Lamm, M.Quinn, A.Teymurazyan, A.Woehr T = 3/2 states in 13C NUCLEAR REACTIONS 1H, C(11B, 11B), (12B, 12B), E=44.6 MeV; measured σ(θ). 13C; deduced levels, J, π, resonance widths. Comparisons with 13B, 13N, 13O, shell model calculations.
doi: 10.1103/PhysRevC.78.044603
2007FU09 Phys.Rev. C 76, 021603 (2007) C.Fu, V.Z.Goldberg, A.M.Mukhamedzhanov, G.G.Chubarian, G.V.Rogachev, B.Skorodumov, M.McCleskey, Y.Zhai, T.Al-Abdullah, G.Tabacaru, L.Trache, R.E.Tribble Single and double proton emissions from the 14O+4He interaction NUCLEAR REACTIONS 4He(14O, X)16O, E=32.7 MeV; measured yields and excitation function.
doi: 10.1103/PhysRevC.76.021603
2007RO01 Phys.Rev. C 75, 014603 (2007) G.V.Rogachev, J.J.Kolata, A.S.Volya, F.D.Becchetti, Y.Chen, P.A.DeYoung, J.Lupton Spectroscopy of 9C via resonance scattering of protons on 8B NUCLEAR REACTIONS 1H(8B, p), E(cm)=0.5-3.2 MeV; measured Ep, σ(θ), excitation function. 9C deduced resonance energies, widths, J, π. Thick target, R-matrix analysis, continuum shell model calculations.
doi: 10.1103/PhysRevC.75.014603
2007SK02 Phys.Rev. C 75, 024607 (2007) B.B.Skorodumov, G.V.Rogachev, P.Boutachkov, A.Aprahamian, V.Z.Goldberg, A.Mukhamedzhanov, S.Almaraz, H.Amro, F.D.Becchetti, S.Brown, Y.Chen, H.Jiang, J.J.Kolata, L.O.Lamm, M.Quinn, A.Woehr Lowest excited states of 13O NUCLEAR REACTIONS 1H(12N, p), E(cm)=0.8-2.7 MeV; measured Ep, excitation functions for elastic scattering. 13O deduced resonance energies, J, π, widths. 12N(p, γ), E=low; calculated astrophysical reaction rates. R-matrix calculations.
doi: 10.1103/PhysRevC.75.024607
2006BO08 Nucl.Phys. A768, 22 (2006) P.Boutachkov, K.H.Maier, A.Aprahamian, G.V.Rogachev, L.O.Lamm, M.Quinn, B.B.Skorodumov, A.Wohr Study of the low spin states of 208Bi through γ-γ spectroscopy NUCLEAR REACTIONS 208Pb(p, n), E=9.0 MeV; measured Eγ, Iγ, γγ-coin. 208Bi deduced levels, J, π, transition multipolarities. Comparison with shell-model predictions.
doi: 10.1016/j.nuclphysa.2006.01.004
2006JO11 Phys.Rev.Lett. 97, 192701 (2006) E.D.Johnson, G.V.Rogachev, A.M.Mukhamedzhanov, L.T.Baby, S.Brown, W.T.Cluff, A.M.Crisp, E.Diffenderfer, V.Z.Goldberg, B.W.Green, T.Hinners, C.R.Hoffman, K.W.Kemper, O.Momotyuk, P.Peplowski, A.Pipidis, R.Reynolds, B.T.Roeder Astrophysical Reaction Rate for the Neutron-Generator Reaction 13C(α, n)16O in Asymptotic Giant Branch Stars NUCLEAR REACTIONS 6Li(13C, d), E=8.0, 8.5 MeV; measured deuteron spectra, σ(E, θ); deduced asymptotic normalization coefficient for subthreshold resonance. 13C(α, n), E ≈ 0-1 MeV; deduced astrophysical S-factor, reaction rates.
doi: 10.1103/PhysRevLett.97.192701
2006PE21 Phys.Rev. C 74, 024306 (2006) K.Perajarvi, C.Fu, G.V.Rogachev, G.Chubarian, V.Z.Goldberg, F.Q.Guo, D.Lee, D.M.Moltz, J.Powell, B.B.Skorodumov, G.Tabacaru, X.D.Tang, R.E.Tribble, B.A.Brown, A.Volya, J.Cerny Structure of 12N using 11C+p resonance scattering NUCLEAR REACTIONS 1H(11C, p), E(cm)=2.2-11.0 MeV; measured recoil proton spectra, σ(θ), excitation functions. 12N deduced levels, J, π, widths. R-matrix analysis.
doi: 10.1103/PhysRevC.74.024306
2006SK09 Phys.Atomic Nuclei 69, 1979 (2006) B.B.Skorodumov, G.V.Rogachev, P.Boutachkov, A.Aprahamian, J.J.Kolata, L.O.Lamm, M.Quinn, A.Woehr Investigation of the 19Na Nucleus via Resonance Elastic Scattering NUCLEAR REACTIONS 1H(18Ne, p), E=56 MeV; measured Ep, σ(θ), elastic scattering excitation function. 19Na deduced resonance energy, J, π. Astrophysical implications discussed.
doi: 10.1134/S1063778806120015
2005BO36 Phys.Rev.Lett. 95, 132502 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Doppler Shift as a Tool for Studies of Isobaric Analog States of Neutron-Rich Nuclei: Application to 7He NUCLEAR REACTIONS 1H(6He, γ), E < 24 MeV; measured Eγ, Iγ; deduced IAS formation σ, σ(θ). 7Li deduced resonance parameters. Doppler-shift analysis technique.
doi: 10.1103/PhysRevLett.95.132502
2005BO49 Eur.Phys.J. A 25, Supplement 1, 259 (2005) P.Boutachkov, G.V.Rogachev, V.Z.Goldberg, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Isobaric analog states of neutron-rich nuclei. Doppler shift as a measurement tool for resonance excitation functions NUCLEAR REACTIONS 1H(6He, n), E not given; measured Doppler-shifted Eγ, Iγ. 7Li deduced resonance features, IAS.
doi: 10.1140/epjad/i2005-06-014-4
2005RO37 Nucl.Instrum.Methods Phys.Res. B241, 977 (2005) G.V.Rogachev, A.A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Isobaric analog states as a tool for spectroscopy of exotic nuclei NUCLEAR REACTIONS 1H(8He, 8He), E not given; measured recoil proton spectrum; deduced excitation function. 1H(6He, 6Li), E not given; measured neutron spectrum, nγ-coin; deduced excitation function. 7,9Li deduced resonance parameters. 7,9He deduced analog states features.
doi: 10.1016/j.nimb.2005.07.157
2004GO03 Phys.Rev. C 69, 024602 (2004) V.Z.Goldberg, G.V.Rogachev, W.H.Trzaska, J.J.Kolata, A.Andreyev, C.Angulo, M.J.G.Borge, S.Cherubini, G.Chubarian, G.Crowley, P.Van Duppen, M.Gorska, M.Gulino, M.Huyse, P.Jesinger, K.-M.Kallman, M.Lattuada, T.Lonnroth, M.Mutterer, R.Raabe, S.Romano, M.V.Rozhkov, B.B.Skorodumov, C.Spitaleri, O.Tengblad, A.Tumino Investigation of the α-cluster structure of 22Ne and 22Mg NUCLEAR REACTIONS 4He(18O, 18O), E < 80 MeV; 4He(18Ne, 18Ne), E < 53 MeV; measured σ(θ), excitation functions. 22Ne deduced resonance energies, J, π, widths, α-cluster features. 22Mg deduced level energies, J, α-cluster features. Thick-target inverse kinematics method.
doi: 10.1103/PhysRevC.69.024602
2004GO15 Phys.Rev. C 69, 031302 (2004) V.Z.Goldberg, G.G.Chubarian, G.Tabacaru, L.Trache, R.E.Tribble, A.Aprahamian, G.V.Rogachev, B.B.Skorodumov, X.D.Tang Low-lying levels in 15F and the shell model potential for drip-line nuclei NUCLEAR REACTIONS 1H(14O, 14O), E(cm)=1.0-3.4 MeV; measured excitation functions, σ(θ). 15F deduced ground and excited states J, π, resonance features. Woods-Saxon potential model analysis.
doi: 10.1103/PhysRevC.69.031302
2004GO22 Nucl.Phys. A734, 349 (2004) V.Z.Goldberg, G.V.Rogachev, J.J.Kolata, G.Chubarian, D.Aleksandrov, M.S.Golovkov, Yu.Ts.Oganessian, A.Rodin, B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, R.Wolski Resonance scattering 8He + p and T=5/2 states in 9Li NUCLEAR REACTIONS 1H(8He, 8He), E=50, 59 MeV; measured particle spectra, elastic scattering excitation function. 9Li deduced resonance energies, isobaric analog states.
doi: 10.1016/j.nuclphysa.2004.01.064
2004RO20 Phys.Rev.Lett. 92, 232502 (2004) G.V.Rogachev, P.Boutachkov, A.Aprahamian, F.D.Becchetti, J.P.Bychowski, Y.Chen, G.Chubarian, P.A.DeYoung, V.Z.Goldberg, J.J.Kolata, L.O.Lamm, G.F.Peaslee, M.Quinn, B.B.Skorodumov, A.Wohr Analog States of 7He Observed via the 6He(p, n) Reaction NUCLEAR REACTIONS 1H(6He, n), E=24 MeV; measured En, Eγ, nγ-coin; deduced excitation function. 7Li deduced levels, J, π, analog states. 7He deduced IAR features.
doi: 10.1103/PhysRevLett.92.232502
2004RO42 Nucl.Phys. A746, 229c (2004) G.V.Rogachev, A.Aprahamian, F.D.Becchetti, P.Boutachkov, Y.Chen, G.Chubarian, P.A.DeYoung, A.Fomichev, V.Z.Goldberg, M.S.Golovkov, J.J.Kolata, Yu.Ts.Oganessian, G.F.Peaslee, M.Quinn, A.Rodin, B.B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, A.Wohr, R.Wolski Structure of exotic 7He and 9He NUCLEAR REACTIONS 1H(6He, n), E(cm) ≈ 1-3.3 MeV; 1H(8He, 8He), E* ≈ 15-20 MeV; measured σ(θ), excitation functions. 7,9Li, 7,9He deduced IAS features.
doi: 10.1016/j.nuclphysa.2004.09.036
2003GO38 Acta Phys.Hung.N.S. 18, 215 (2003) V.Z.Goldberg, W.H.Trzaska, G.V.Rogachev, J.J.Kolata, A.Andreyev, C.Angulo, M.J.G.Borge, S.Cherubini, G.Chubarian, G.Crowley, A.S.Fomichev, M.Gorska, M.Gulino, M.S.Golovkov, M.Huyse, K.-M.Kallman, M.Lattuada, T.Lonnroth, M.Mutterer, R.Raabe, A.M.Rodin, S.Romano, M.V.Rozhkov, B.B.Skorodumov, C.Spitaleri, O.Tengblad, G.M.Ter-Akopian, A.Tumino, P.Van Duppen, R.Wolski New Perspectives in the Studies of Resonance Scattering
doi: 10.1556/APH.18.2003.2-4.15
2003RO07 Phys.Rev. C 67, 041603 (2003) G.V.Rogachev, V.Z.Goldberg, J.J.Kolata, G.Chubarian, D.Aleksandrov, A.Fomichev, M.S.Golovkov, Yu.Ts.Oganessian, A.Rodin, B.Skorodumov, R.S.Slepnev, G.Ter-Akopian, W.H.Trzaska, R.Wolski T=5/2 states in 9Li: Isobaric analog states of 9He NUCLEAR REACTIONS 1H(8He, 8He), E(cm)=1.6-5.8 MeV; measured σ(θ), excitation function. 9Li deduced resonance energies, possible J, π, isobaric analog states.
doi: 10.1103/PhysRevC.67.041603
2003RO13 Phys.Rev. C 68, 024602 (2003) G.V.Rogachev, J.J.Kolata, V.Z.Goldberg, L.V.Grigorenko, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, L.O.Lamm, J.Lupton, T.W.O'Donnell, D.A.Roberts, S.Shaheen Final state interaction or a 3H excited state? NUCLEAR REACTIONS 1H(6He, α), E=23.9 MeV; measured Eα, Iα; deduced resonance structure, possible three-body final-state interaction. 3H deduced possible excited state.
doi: 10.1103/PhysRevC.68.024602
2001RO29 Phys.Rev. C64, 051302 (2001) G.V.Rogachev, V.Z.Goldberg, T.Lonnroth, W.H.Trzaska, S.A.Fayans, K.-M.Kallman, J.J.Kolata, M.Mutterer, M.V.Rozhkov, B.B.Skorodumov Doubling of α-Cluster States in 22Ne NUCLEAR REACTIONS 4He(18O, 18O), E(cm)=2.1-12.5 MeV; measured excitation functions, σ(θ). 22Ne deduced resonance energies, J, π, α-cluster states.
doi: 10.1103/PhysRevC.64.051302
2001RO32 Phys.Rev. C64, 061601 (2001) G.V.Rogachev, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, M.Hencheck, K.Helland, J.D.Hinnefeld, B.Hughey, P.L.Jolivette, L.M.Kiessel, H.-Y.Lee, M.Y.Lee, T.W.O'Donnell, G.F.Peaslee, D.Peterson, D.A.Roberts, P.Santi, S.A.Shaheen Proton Elastic Scattering from 7Be at Low Energies NUCLEAR REACTIONS 1H(7Be, 7Be), E < 25.5 MeV; measured back-angle recoil proton spectra, σ(θ). 7Be(p, p), E=1-3.3 MeV; deduced excitation function. 8B deduced levels, J, π. Predicted 1+ state in 8B not found, astrophysical implication discussed. Thick target technique.
doi: 10.1103/PhysRevC.64.061601
2000GO37 Yad.Fiz. 63, No 9, 1603 (2000); Phys.Atomic Nuclei 63, 1518 (2000) V.Z.Goldberg, G.V.Rogachev, M.Brenner, K.-M.Kallman, T.Lonnroth, M.V.Rozhkov, S.Torilov, W.H.Trzaska, R.Wolski Observation of an α-Cluster Structure in 36Ar NUCLEAR REACTIONS 4He(32S, 32S), E<128 MeV; measured σ(θ, E), resonance parameters. Comparison with R-matrix theory and with other α-cluster nuclei. Thick target technique.
doi: 10.1134/1.1312885
2000MA62 Phys.Rev. C62, 034308 (2000) K.Markenroth, L.Axelsson, S.Baxter, M.J.G.Borge, C.Donzaud, S.Fayans, H.O.U.Fynbo, V.Z.Goldberg, S.Grevy, D.Guillemaud-Mueller, B.Jonson, K.-M.Kallman, S.Leenhardt, M.Lewitowicz, T.Lonnroth, P.Manngard, I.Martel, A.C.Mueller, I.Mukha, T.Nilsson, G.Nyman, N.A.Orr, K.Riisager, G.V.Rogachev, M.-G.Saint-Laurent, I.N.Serikov, N.B.Shulgina, O.Sorlin, M.Steiner, O.Tengblad, M.Thoennessen, E.Tryggestad, W.H.Trzaska, F.Wenander, J.S.Winfield, R.Wolski Crossing the Dripline to 11N using Elastic Resonance Scattering NUCLEAR REACTIONS 1H(10C, 10C), E=9 MeV/nucleon; measured particle spectra. 11N deduced resonances J, π, widths. Elastic resonance scattering, secondary beam from 12C fragmentation.
doi: 10.1103/PhysRevC.62.034308
1998GO16 Pisma Zh.Eksp.Teor.Fiz. 67, 959 (1998); JETP Lett. 67, 1013 (1998) V.Z.Goldberg, G.V.Rogachev, M.S.Golovkov, V.I.Dukhanov, I.N.Serikov, V.A.Timofeev Study of the Proton-Rich Nucleus 8B in the Resonance Scattering of Radioactive 7Be by Hydrogen NUCLEAR REACTIONS 1H(7Be, 7Be), E(cm)=1-3.6 MeV; measured σ(θ(cm)=180°). 8B deduced resonances E, Γ.
doi: 10.1134/1.567784
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