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NSR database version of April 11, 2024.

Search: Author = G.Rogachev

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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD8044. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2627.


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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2633.


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
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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
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2020GO09      Phys.Atomic Nuclei 83, 513 (2020)

V.Z.Goldberg, G.V.Rogachev

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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2600. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2517.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2573.


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
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Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2423. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2459. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2289. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2271.


2017AR04      Prog.Part.Nucl.Phys. 94, 1 (2017)

A.Arcones, D.W.Bardayan, T.C.Beers, L.A.Bernstein, J.C.Blackmon, B.Messer, B.A.Brown, E.F.Brown, C.R.Brune, A.E.Champagne, A.Chieffi, A.J.Couture, P.Danielewicz, R.Diehl, M.El Eid, J.E.Escher, B.D.Fields, C.Frohlich, F.Herwig, W.R.Hix, C.Iliadis, W.G.Lynch, G.C.McLaughlin, B.S.Meyer, A.Mezzacappa, F.Nunes, B.W.O'Shea, M.Prakash, B.Pritychenko, S.Reddy, E.Rehm, G.Rogachev, R.E.Rutledge, H.Schatz, M.S.Smith, I.H.Stairs, A.W.Steiner, T.E.Strohmayer, F.X.Timmes, D.M.Townsley, M.Wiescher, R.G.T.Zegers, M.Zingale

White paper on nuclear astrophysics and low energy nuclear physics Part 1: Nuclear astrophysics

doi: 10.1016/j.ppnp.2016.12.003
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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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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2265. Data from this article have been entered in the XUNDL database. For more information, click here.


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
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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
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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
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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
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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
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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
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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
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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
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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
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2014MA49      Phys.Rev. C 90, 014616 (2014)

E.Martinez-Quiroz, E.F.Aguilera, D.Lizcano, P.Amador-Valenzuela, H.Garcia-Martinez, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee

Near- and sub-barrier fusion of the 7Be + 58Ni system

NUCLEAR REACTIONS 58Ni(7Be, X), E=16.4, 17.5, 19.4, 20.1, 20.9, 21.9 MeV; measured evaporated proton spectra, σ(E) for protons at Notre Dame TwinSol Radioactive Nuclear Beam facility and FM tandem accelerator; deduced total fusion σ(E) using proton multiplicities. Comparison with predictions of Wong's one-dimensional barrier-penetration model (BPM), and optical model potential (OMP). Comparison with previous experimental results for fusion σ(E) in 27Al(7Be, X), and fission σ(E) in 238U(7Be, F).

doi: 10.1103/PhysRevC.90.014616
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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
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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
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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
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2012GO20      Phys.Rev. C 86, 044314 (2012)

V.Z.Goldberg, G.V.Rogachev

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
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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
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2012LI60      J.Phys.:Conf.Ser. 403, 012036 (2012)

L.E.Linhardt, L.Baby, D.W.Bardayan, J.C.Blackmon, H.Gardiner, E.Johnson, E.Koschiy, M.T.Macon, M.Matos, B.C.Rasco, G.Rogachev, D.Santiago-Gonzalez, I.Wiedenhoever

Measurement of 17F + p reactions with ANASEN

NUCLEAR REACTIONS 1H(17O, α), E(cm)=1.8-3 MeV; 1H(17F, α), (17F, p), E=55 MeV; measured reaction products, Ep, Ip, Eα, Iα. 14N, 14O, 17F; deduced yields, resonances. R-matrix fit. The Array for Nuclear Astrophysics Studies with Exotic Nuclei (ANASEN), RESOLUT facility at FSU.

doi: 10.1088/1742-6596/403/1/012036
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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
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2011AG15      Phys.Rev.Lett. 107, 092701 (2011)

E.F.Aguilera, P.Amador-Valenzuela, E.Martinez-Quiroz, D.Lizcano, P.Rosales, H.Garcia-Martinez, A.Gomez-Camacho, J.J.Kolata, A.Roberts, L.O.Lamm, G.Rogachev, V.Guimaraes, F.D.Becchetti, A.Villano, M.Ojaruega, M.Febbraro, Y.Chen, H.Jiang, P.A.DeYoung, G.F.Peaslee, C.Guess, U.Khadka, J.Brown, J.D.Hinnefeld, L.Acosta, E.S.Rossi, Jr., J.F.P.Huiza, T.L.Belyaeva

Near-Barrier Fusion of the 8B+58Ni Proton-Halo System

NUCLEAR REACTIONS 58Ni(8B, X)66As, E=22.4-26.9 MeV; measured reaction products, proton spectra; deduced fusion σ, fusion and breakup yields.

doi: 10.1103/PhysRevLett.107.092701
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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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
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2007MU10      Nucl.Phys. A787, 321c (2007)

A.M.Mukhamedzhanov, L.D.Blokhintsev, S.Brown, V.Burjan, S.Cherubini, V.Z.Goldberg, M.Gulino, B.F.Irgaziev, E.Johnson, K.Kemper, V.Kroha, M.La Cognata, L.Lamia, A.Momotyuk, R.G.Pizzone, B.Roeder, G.Rogachev, S.Romano, C.Spitaleri, R.E.Tribble, A.Tumino

Indirect Techniques in Nuclear Astrophysics. Asymptotic Normalization Coefficient and Trojan Horse

NUCLEAR REACTIONS 13C(α, n), E=0-0.9 MeV; calculated astrophysical S-factor. Asymptotic normalization coefficient method. Comparison with data. 6Li(d, α), 7Li(p, α), E=0-800 keV; calculated astrophysical S-factor. Trojan horse method.

doi: 10.1016/j.nuclphysa.2006.12.051
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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
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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
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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
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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
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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
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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
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2005BE38      Phys.Rev. C 71, 054610 (2005)

F.D.Becchetti, R.S.Raymond, D.A.Roberts, J.Lucido, P.A.DeYoung, B.Hilldore, J.Bychowski, A.J.Huisman, P.J.VanWylen, J.J.Kolata, G.Rogachev, J.D.Hinnefeld

The (8Li, α) reaction at low energy: Direct 4H cluster transfer?

NUCLEAR REACTIONS C, 27Al, 208Pb(8Li, α), E=27.7 MeV; measured Eα, σ(θ); deduced reaction mechanism features.

doi: 10.1103/PhysRevC.71.054610
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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
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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
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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
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2004BY03      Phys.Lett. B 596, 26 (2004)

J.P.Bychowski, P.A.DeYoung, B.B.Hilldore, J.D.Hinnefeld, A.Vida, F.D.Becchetti, J.Lupton, T.W.O'Donnell, J.J.Kolata, G.Rogachev, M.Hencheck

209Bi(6He, α) reaction mechanisms studied near the Coulomb barrier using n-α coincidence measurements

NUCLEAR REACTIONS 209Bi(6He, αX), E=22.9 MeV; measured Eα, En, nα-coin, angular distributions; deduced single-neutron transfer contribution.

doi: 10.1016/j.physletb.2004.05.058
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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
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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
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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
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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
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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
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2003BE38      Nucl.Instrum.Methods Phys.Res. A505, 377 (2003)

F.D.Becchetti, M.Y.Lee, T.W.O'Donnell, D.A.Roberts, J.J.Kolata, L.O.Lamm, G.Rogachev, V.Guimaraes, P.A.DeYoung, S.Vincent

The TwinSol low-energy radioactive nuclear beam apparatus: status and recent results

NUCLEAR REACTIONS Pb(8Li, 8Li), (8Li, 8Li'), E=20-36 MeV; measured σ(E). 8Li deduced transition B(E2). 1H(7Be, 7Be), E=low; measured excitation function.

doi: 10.1016/S0168-9002(03)01101-X
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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
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2003GU22      Nucl.Phys. A722, 341c (2003)

V.Guimaraes, R.Kuramoto, R.Lichtenthaler, G.Amadio, E.Benjamin, P.N.de Faria, A.Lepine-Szily, G.F.Lima, J.J.Kolata, G.Rogachev, F.D.Becchetti, T.O'Donnell, Y.Chen, J.Hinnefeld, J.Lapton

Searching for resonances in the unbound 6Be and 5Li nuclei

NUCLEAR REACTIONS 3He(7Li, α), E=31 MeV; 2H(8B, α), E=28.6 MeV; 2H(7Be, α), E=20.9 MeV; measured Eα, angular distributions. 6Li, 6Be; deduced resonance features.

doi: 10.1016/S0375-9474(03)01387-3
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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
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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
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2002KO25      Phys.Rev. C65, 054616 (2002)

J.J.Kolata, V.Z.Goldberg, L.O.Lamm, M.G.Marino, C.J.O'Keeffe, G.Rogachev, E.F.Aguilera, H.Garcia-Martinez, E.Martinez-Quiroz, P.Rosales, F.D.Becchetti, T.W.O'Donnell, D.A.Roberts, J.A.Brown, P.A.DeYoung, J.D.Hinnefeld, S.A.Shaheen

Elastic Scattering and Transfer in the 8Li + 209Pb System Near the Coulomb Barrier

NUCLEAR REACTIONS 208Pb(8Li, 8Li), (8Li, 7LiX), (8Li, αX), E(cm)=24-33 MeV; measured particle spectra, σ(θ); deduced total reaction σ, interaction barrier. Comparison with similar reactions.

doi: 10.1103/PhysRevC.65.054616
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2001AG06      Phys.Rev. C63, 061603 (2001)

E.F.Aguilera, J.J.Kolata, F.D.Becchetti, P.A.DeYoung, J.D.Hinnefeld, A.Horvath, L.O.Lamm, H.-Y.Lee, D.Lizcano, E.Martinez-Quiroz, P.Mohr, T.W.O'Donnell, D.A.Roberts, G.Rogachev

Elastic Scattering and Transfer in the 6He + 209Bi System below the Coulomb Barrier

NUCLEAR REACTIONS 209Bi(6He, X), E(cm)=14.3-21.4 MeV; measured reaction σ. 209Bi(6He, 6He), (6He, αX), E(cm)=14.3-21.4 MeV; measured σ(θ); deduced optical model parameters.

doi: 10.1103/PhysRevC.63.061603
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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
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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
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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
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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
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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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Note: The following list of authors and aliases matches the search parameter G.Rogachev: , G.V.ROGACHEV