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NSR database version of March 18, 2024.

Search: Author = A.A.Chen

Found 82 matches.

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2024PA09      Phys.Rev. C 109, 015802 (2024)

S.N.Paneru, C.R.Brune, D.Connolly, D.Odell, M.Poudel, D.R.Phillips, J.Karpesky, B.Davids, C.Ruiz, A.Lennarz, U.Greife, M.Alcorta, R.Giri, M.Lovely, M.Bowry, M.Delgado, N.E.Esker, A.B.Garnsworthy, C.Seeman, P.Machule, J.Fallis, A.A.Chen, F.Laddaran, A.Firmino, C.Weinerman

Elastic scattering of 3He+4He with the SONIK scattering chamber

doi: 10.1103/PhysRevC.109.015802
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2022BU14      Phys.Rev.Lett. 128, 182701 (2022)

T.Budner, M.Friedman, C.Wrede, B.A.Brown, J.Jose, D.Perez-Loureiro, L.J.Sun, J.Surbrook, Y.Ayyad, D.W.Bardayan, K.Chae, A.A.Chen, K.A.Chipps, M.Cortesi, B.Glassman, M.R.Hall, M.Janasik, J.Liang, P.O'Malley, E.Pollacco, A.Psaltis, J.Stomps, T.Wheeler

Constraining the 30P(p, γ)31S Reaction Rate in ONe Novae via the Weak, Low-Energy, β-Delayed Proton Decay of 31Cl

RADIOACTIVITY 31Cl(β+p) [from 9Be(36Ar, X), E=150 MeV/nucleon]; measured decay products, Eβ, Iβ, Ep, Ip; deduced β-delayed proton spectra, the weakest β-delayed proton intensity ever measured, resonance parameters, astrophysical reaction rates. The Gaseous Detector with Germanium Tagging (GADGET), the Coupled Cyclotron Facility at MSU.

doi: 10.1103/PhysRevLett.128.182701
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2022LO01      Phys.Rev.Lett. 128, 042701 (2022)

G.Lotay, A.Lennarz, C.Ruiz, C.Akers, A.A.Chen, G.Christian, D.Connolly, B.Davids, T.Davinson, J.Fallis, D.A.Hutcheon, P.Machule, L.Martin, D.J.Mountford, A.St.J.Murphy

Radiative Capture on Nuclear Isomers: Direct Measurement of the 26mAl(p, γ)27Si Reaction

NUCLEAR REACTIONS 1H(26Al, γ), E=390 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance energies and parameters, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.128.042701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2724. Data from this article have been entered in the XUNDL database. For more information, click here.


2022PS02      Phys.Rev.Lett. 129, 162701 (2022)

A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams

Direct Measurement of Resonances in 7Be(α, γ)11C Relevant to νp-Process Nucleosynthesis

NUCLEAR REACTIONS 4He(7Be, γ)11C, E not given; measured reaction products, Eγ, Iγ; deduced resonance energies and strengths, thermonuclear reaction rates. Comparison with available data. DRAGON recoil separator, TRIUMF.

doi: 10.1103/PhysRevLett.129.162701
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Data from this article have been entered in the XUNDL database. For more information, click here.


2022PS03      Phys.Rev. C 106, 045805 (2022)

A.Psaltis, A.A.Chen, R.Longland, D.S.Connolly, C.R.Brune, B.Davids, J.Fallis, R.Giri, U.Greife, D.A.Hutcheon, L.Kroll, A.Lennarz, J.Liang, M.Lovely, M.Luo, C.Marshall, S.N.Paneru, A.Parikh, C.Ruiz, A.C.Shotter, M.Williams

First inverse kinematics measurement of resonances in 7Be(α, γ)11C relevant to neutrino-driven wind nucleosynthesis using DRAGON

NUCLEAR REACTIONS 4He(7Be, γ), E=351-464 keV/nucleon; measured reaction products, Eγ, Iγ, γ-sum, (particle)γ-coin; deduced 1110-, 1115- and 876-keV resonances strength, thermonuclear reaction rate (T=0.1-10 GK), astrophysical S-factor. Discussed the impact of newly determined rates on studies of nucleosynthesis in neutrino-driven winds. Helium-filled windowless gas target surrounded by γ-ray array of 30 BGO scintillator crystals at DRAGON recoil separator (TRIUMF).

doi: 10.1103/PhysRevC.106.045805
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Data from this article have been entered in the XUNDL database. For more information, click here.


2021LO09      Phys.Rev. C 103, 055801 (2021)

M.Lovely, A.Lennarz, D.Connolly, M.Williams, M.Alcorta, A.A.Chen, B.Davids, N.E.Esker, C.Fry, S.A.Gillespie, R.Giri, U.Greife, A.Hussein, D.Hutcheon, J.Karpesky, L.Kroll, J.Liang, P.D.O'Malley, S.Paneru, A.Psaltis, C.Ruiz, A.C.Shotter, for the DRAGON Collaboration

Proton capture on 34S in the astrophysical energy regime of O-Ne novae

NUCLEAR REACTIONS 1H(34S, γ)35Cl, E=518.6 keV/nucleon from the ISAC facility of TRIUMF; measured recoils, Eγ, Iγ, TOF using DRAGON separator having four components, windowless gas target, BGO array for γ rays, two stage electromagnetic separator, and heavy ion detector system of double-sided silicon strip detector (DSSSD) and an ionization chamber (IC) for recoils. 35Cl; deduced energies of resonances, resonance strengths, astrophysical reaction rates. Comparison with previous experimental results.

doi: 10.1103/PhysRevC.103.055801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2629. Data from this article have been entered in the XUNDL database. For more information, click here.


2021PS01      Nucl.Instrum.Methods Phys.Res. A987, 164828 (2021)

A.Psaltis, A.A.Chen, D.S.Connolly, B.Davids, G.Gilardy, R.Giri, U.Greife, W.Huang, D.A.Hutcheon, J.Karpesky, A.Lennarz, J.Liang, M.Lovely, S.N.Paneru, C.Ruiz, G.Tenkila, M.Williams

Beyond the acceptance limit of DRAGON: The case of the 6Li(α, γ)10B reaction

NUCLEAR REACTIONS 6Li(α, γ), E=3.6 MeV; measured reaction products, TOF, Eγ, Iγ; deduced Q-value, resonance parameters. Comparison with available data.

doi: 10.1016/j.nima.2020.164828
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2592. Data from this article have been entered in the XUNDL database. For more information, click here.


2021RA22      Phys.Rev. C 104, L042801 (2021)

J.S.Randhawa, R.Kanungo, J.Refsgaard, P.Mohr, T.Ahn, M.Alcorta, C.Andreoiu, S.S.Bhattacharjee, B.Davids, G.Christian, A.A.Chen, R.Coleman, P.E.Garrett, G.F.Grinyer, E.G.Fuakye, G.Hackman, J.Hollett, R.Jain, K.Kapoor, R.Krucken, A.Laffoley, A.Lennarz, J.Liang, Z.Meisel, B.Nikhil, A.Psaltis, A.Radich, M.Rocchini, N.Saei, M.Saxena, M.Singh, C.Svensson, P.Subramaniam, A.Talebitaher, S.Upadhyayula, C.Waterfield, J.Williams, M.Williams

First direct measurement of 59Cu(p, α)56Ni: step towards constraining the Ni-Cu cycle in the cosmos

NUCLEAR REACTIONS 1H(59Cu, α)56Ni, E=8.5 MeV/nucleon, [secondary 59Cu beam from Nb(p, X), E=480 MeV at the TRIUMF cyclotron, followed by re-acceleration of 59Cu beam by ISAC-II superconducting LINAC, solid H2 target]; measured protons and α particles, angle-integrated σ using thick single-sided silicon strip detectors and a layer of thick CsI(Tl) detectors; deduced ratio of integrated σ to total σ, exclusive population of the ground state of 56Ni in (p, α). Comparison with Hauser-Feshbach based statistical model calculations; deduced overestimation of (p, α) cross section in this region. Discussed impact on νp process and x-ray bursts (XRBs). Relevance to Ni-Cu cycle in nucleosynthesis, with competing 59Cu(p, α)56Ni and 59Cu(p, γ)60Zn reactions.

doi: 10.1103/PhysRevC.104.L042801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2696.


2020KR03      At.Data Nucl.Data Tables 133-134, 101336 (2020)

L.Kroll, B.Singh, A.A.Chen

Compilation of recent atomic mass measurements and deduced quantities

COMPILATION Z=5-102; compiled atomic mass measurements; deduced β- and α-decay Q-values, one- and two-nucleon separation energies using the newly measured mass excesses.

doi: 10.1016/j.adt.2020.101336
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2020LE11      Phys.Lett. B 807, 135539 (2020)

A.Lennarz, M.Williams, A.M.Laird, U.Battino, A.A.Chen, D.Connolly, B.Davids, N.Esker, R.Garg, M.Gay, U.Greife, U.Hager, D.Hutcheon, J.Jose, M.Lovely, S.Lyons, A.Psaltis, J.E.Riley, A.Tattersall, C.Ruiz

First inverse kinematics measurement of key resonances in the 22Ne(p, γ)23Na reaction at stellar temperatures

NUCLEAR REACTIONS 1H(22Ne, γ)23Na, E not given; measured reaction products; deduced resonance strengths, reaction rates.

doi: 10.1016/j.physletb.2020.135539
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2572.


2020LI32      Nucl.Data Sheets 168, 1 (2020)

J.Liang, B.Singh, E.A.McCutchan, I.Dillmann, M.Birch, A.A.Sonzogni, X.Huang, M.Kang, J.Wang, G.Mukherjee, K.Banerjee, D.Abriola, A.Algora, A.A.Chen, T.D.Johnson, K.Miernik

Compilation and Evaluation of Beta-Delayed Neutron Emission Probabilities and Half-Lives for Z > 28 Precursors

RADIOACTIVITY 73,74,75,76,77,78,79,80,81,82,83Cu, 78,79,80,81,82,83,84,85Zn, 79,80,81,82,83,84,85,86,87Ga, 83,84,85,86,87,88,89,90Ge, 84,85,86,87,88,89,90,91,92As, 86,87,88,89,90,91,92,93,94,95Se, 87,88,89,90,91,92,93,94,95,96,97,98Br, 91,92,93,94,95,96,97,98,99,100,101Kr, 91,92,93,94,95,96,97,98,99,100,101,102,103,104Rb, 96,97,98,99,100,101,102,103,104,105,106,107Sr, 97,98,99,100,101,102,103,104,105,106,107,108,109Y, 103,104,105,106,107,108,109,110,111,112,113Zr, 103,104,105,106,107,108,109,110,111,112,113,114,115,116Nb, 109,110,111,112,113,114,115,116,117,118,119Mo, 109,110,111,112,113,114,115,116,117,118,119,120,121,122Tc, 114,115,116,117,118,119,120,121,122,123,124,125Ru, 115,116,117,118,119,120,121,122,123,124,125,126,127,128Rh, 119,120,121,122,123,124,125,126,127,128,129,130,131Pd, 120,121,122,123,124,125,126,127,128,129,130,131,132Ag, 126,127,128,129,130,131,132,133,134Cd, 127,128,129,130,131,132,133,134,135,136,137In, 133,134,135,136,137,138,139,140Sn, 134,135,136,137,138,139,140,141,142Sb, 136,137,138,139,140,141,142,143,144,145Te, 137,138,139,140,141,142,143,144,145,146,147I, 141,142,143,144,145,146,147,148,149,150Xe, 141,142,143,144,145,146,147,148,149,150,151,152Cs, 147,148,149,150,151,152,153,154Ba, 147,148,149,150,151,152,153,154,155,156,157La, 153,154,155,156,157,158Ce, 153,154,155,156,157,158,159,160,161Pr, 158,159,160,161,162,163Nd, 159,160,161,162,163,164,165Pm, 163,164,165,166,167Sm, 165,166,167,168,169Eu, 169,170,171Gd, 169,170,171,172,173,174Tb, 174,175,176Dy, 174,175,176,177,178Ho, 180Er, 179,180,181Tm, 185Yb, 186,187,188Lu, 191,192,193,194Ta, 198,199Re, 203Os, 203,204,205Ir, 206,207,208Pt, 206,207,208,209,210Au, 209,210,211,212,213,214,215,216Hg, 210,211,212,213,214,215,216,217Tl, 219,220,221,222,223,224Bi, 225,226,227,228,229At, 223Fr(β-); analyzed available data; deduced β-delayed neutron emission probabilities (Pn) and T1/2 for known or potential β-delayed neutron precursors. Comparison with systematics using three different approaches.

doi: 10.1016/j.nds.2020.09.001
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2020SE16      Phys.Rev. C 102, 045806 (2020)

K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.M.Deibel, J.Hendriks, D.Kahl, W.N.Lennard, P.D.Parker, D.Seiler, C.Wrede

Level structure of 31S via 32S(p, d)31S

NUCLEAR REACTIONS 32S(p, d)31S, E=34.5 MeV; measured E(d), I(d) and differential σ(θ) using Enge split-pole magnetic spectrograph at Wright Nuclear Structure Laboratory (WNSL) of Yale University. 31S; deduced levels, J, π. Comparison with results from other reactions, decay, and evaluated data in ENSDF. DWBA analysis of σ(θ) data. Relevance to reaction rates for 30P(p, γ)31S at the temperature range of 0.1 to 1.5 GK, with impact on explosive hydrogen burning in classical novae and type-I x-ray bursts.

doi: 10.1103/PhysRevC.102.045806
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2586. Data from this article have been entered in the XUNDL database. For more information, click here.


2019RA06      Phys.Rev. C 99, 021301 (2019)

J.S.Randhawa, R.Kanungo, M.Holl, J.D.Holt, P.Navratil, S.R.Stroberg, G.Hagen, G.R.Jansen, M.Alcorta, C.Andreoiu, C.Barnes, C.Burbadge, D.Burke, A.A.Chen, A.Chester, G.Christian, S.Cruz, B.Davids, J.Even, G.Hackman, J.Henderson, S.Ishimoto, P.Jassal, S.Kaur, M.Keefe, D.Kisliuk, R.Krucken, J.Liang, J.Lighthall, E.McGee, J.Measures, M.Moukaddam, E.Padilla-Rodal, A.Shotter, I.J.Thompson, J.Turko, M.Williams, O.Workman

Observation of excited states in 20Mg sheds light on nuclear forces and shell evolution

NUCLEAR REACTIONS 2H(20Mg, d), (20Mg, d'), E=8.5 MeV/nucleon, [secondary 20Mg beam produced in Si(p, X), E=480 MeV fragmentation reaction using SiC target at ISAC-II facility]; measured scattered deuteron spectra, differential σ(θ) using annular single-sided silicon strip detector array and CsI(Tl) detectors (IRIS reaction spectroscopy facility) at TRIUMF. 20Mg; deduced levels, J, π, proton-unbound resonances. Comparison with ab initio calculations using the valence-space in-medium similarity renormalization-group (VS-IMSRG) approach.

doi: 10.1103/PhysRevC.99.021301
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2726. Data from this article have been entered in the XUNDL database. For more information, click here.


2019TA20      Phys.Lett. B 798, 134894 (2019)

M.P.Taggart, C.Akers, A.M.Laird, U.Hager, C.Ruiz, D.A.Hutcheon, M.A.Bentley, J.R.Brown, L.Buchmann, A.A.Chen, J.Chen, K.A.Chipps, A.Choplin, J.M.D'Auria, B.Davids, C.Davis, C.Aa.Diget, L.Erikson, J.Fallis, S.P.Fox, U.Frischknecht, B.R.Fulton, N.Galinski, U.Greife, R.Hirschi, D.Howell, L.Martin, D.Mountford, A.St.J.Murphy, D.Ottewell, M.Pignatari, S.Reeve, G.Ruprecht, S.Sjue, L.Veloce, M.Williams

A direct measurement of the 17O(α, γ)21Ne reaction in inverse kinematics and its impact on heavy element production

NUCLEAR REACTIONS 4He(17O, γ)21Ne, E=160, 202, 290, 360 keV/nucleon; measured reaction products, Eγ, Iγ; deduced resonance strengths, S-factors, astrophysical reaction rates.

doi: 10.1016/j.physletb.2019.134894
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2420. Data from this article have been entered in the XUNDL database. For more information, click here.


2018AB06      Phys.Rev. C 98, 024309 (2018)

E.Aboud, M.B.Bennett, C.Wrede, M.Friedman, S.N.Liddick, D.Perez-Loureiro, D.W.Bardayan, B.A.Brown, A.A.Chen, K.A.Chipps, C.Fry, B.E.Glassman, C.Langer, E.I.McNeice, Z.Meisel, W.-J.Ong, P.D.O'Malley, S.D.Pain, C.J.Prokop, H.Schatz, S.B.Schwartz, S.Suchyta, P.Thompson, M.Walters, X.Xu

Toward complete spectroscopy using β decay: The example of 32Cl (βγ)32S

RADIOACTIVITY 32Cl(β+), (EC)[from 9Be(36Ar, X), E=150 MeV/nucleon followed by beam separation and purification using A1900 fragment separator and time-of-flight separation method using Radio Frequency Fragment Separator (RFFS) at NSCL-MSU]; measured Eγ, Iγ, βγ- and βγγ-coin using the Clovershare array of HPGe detectors, 32Cl implants and β by a plastic scintillator at NSCL-MSU. 32S; deduced levels, J, π, β feedings, logft, Gamow-Teller strengths, half-lives, proton, γ and α widths of 8861- and 9650-keV resonances. Comparison with sd USDA and USDB shell model calculations, and with previous experimental values and ENSDF evaluations. 31P(p, α)28Si, E=9650 keV; deduced resonance strength.

doi: 10.1103/PhysRevC.98.024309
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2018AS03      Nucl.Instrum.Methods Phys.Res. A899, 6 (2018)

B.W.Asher, S.Almaraz-Calderon, O.Nusair, K.E.Rehm, M.L.Avila, A.A.Chen, C.A.Dickerson, C.L.Jiang, B.P.Kay, R.C.Pardo, D.Santiago-Gonzalez, R.Talwar

Development of an Isomeric beam of 26Al for nuclear reaction studies

NUCLEAR REACTIONS 1H(26Mg, 26Al), E=158.5 MeV; measured reaction products, Eγ, Iγ. 26mAl; deduced σ. Comparison with available data.

doi: 10.1016/j.nima.2018.05.015
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2018BE12      Phys.Rev. C 97, 065803 (2018)

M.B.Bennett, C.Wrede, S.N.Liddick, D.Perez-Loureiro, D.W.Bardayan, B.A.Brown, A.A.Chen, K.A.Chipps, C.Fry, B.E.Glassman, C.Langer, N.R.Larson, E.I.McNeice, Z.Meisel, W.Ong, P.D.O'Malley, S.D.Pain, C.J.Prokop, H.Schatz, S.B.Schwartz, S.Suchyta, P.Thompson, M.Walters, X.Xu

Detailed study of the decay 31Cl(βγ)31S

RADIOACTIVITY 31Cl(β+), (EC)[from 9Be(36Ar, X), E=150 MeV/nucleon using A1900 Fragment Separator for Bρ, and Radio Frequency Fragment Separator (RFFS) for TOF at NSCL-MSU facility]; measured Eγ, Iγ, βγ- and βγγ-coin using Yale Clovershare array for γ detection, and plastic scintillator for β detection. 31S; deduced levels, resonances, J, π, β feedings, logft values, isospin mixing, ratio of thermonuclear reaction rates for 30P(p, γ)31S reaction at T9=0.1-0.4 for the newly discovered state at 6390 keV and the IAS at 6280 keV. Comparison with USDB and USDE shell-model calculations, and previous experimental results.

doi: 10.1103/PhysRevC.97.065803
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Data from this article have been entered in the XUNDL database. For more information, click here.


2018CH08      Phys.Rev. C 97, 025802 (2018)

G.Christian, G.Lotay, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.Hutcheon, A.Mahl, A.Rojas, X.Sun

Direct measurement of astrophysically important resonances in 38K(p, γ) 39Ca

NUCLEAR REACTIONS 1H(38K, γ)39Ca, E=15.58, 20.56, 27.17 MeV, [38K secondary beam produced at ISAC-I, TRIUMF facility by impinging 500 MeV protons on a high-power TiC production target]; measured recoils using DRAGON spectrometer, prompt Eγ, Iγ, (recoil)γ-coin using bismuth-germanate scintillator array for γ detection. Windowless hydrogen gas target; deduced energies of resonances, resonance strengths for the 386-, 515- and 689-keV proton resonances, astrophysical reaction rates for temperature range of 150-500 MK, abundances of 38Ar, 39K, and 40Ca in the hottest oxygen-neon novae.

doi: 10.1103/PhysRevC.97.025802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2284. Data from this article have been entered in the XUNDL database. For more information, click here.


2018CO04      Phys.Rev. C 97, 035801 (2018)

D.Connolly, P.D.O'Malley, C.Akers, A.A.Chen, G.Christian, B.Davids, L.Erikson, J.Fallis, B.R.Fulton, U.Greife, U.Hager, D.A.Hutcheon, S.Ilyushkin, A.M.Laird, A.Mahl, C.Ruiz

Direct measurement of resonance strengths in 34S(α, γ)38Ar at astrophysically relevant energies using the DRAGON recoil separator

NUCLEAR REACTIONS 4He(34S, γ)38Ar, E=20.23-25.75 MeV; measured Eγ, Iγ, 34S and 38Ar recoils, (recoil)γ-coin using DRAGON recoil mass separator at ISAC-I, TRIUMF. 38Ar; deduced levels, resonance energies, resonance strengths, thermonuclear reaction rates. Comparison with theoretical calculations using NON-SMOKER Hauser-Feshbach statistical model, and REACLIB and STARLIB library rates.

doi: 10.1103/PhysRevC.97.035801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2283. Data from this article have been entered in the XUNDL database. For more information, click here.


2018KA11      Phys.Rev. C 97, 015802 (2018)

D.Kahl, H.Yamaguchi, S.Kubono, A.A.Chen, A.Parikh, D.N.Binh, J.Chen, S.Cherubini, N.N.Duy, T.Hashimoto, S.Hayakawa, N.Iwasa, H.S.Jung, S.Kato, Y.K.Kwon, S.Nishimura, S.Ota, K.Setoodehnia, T.Teranishi, H.Tokieda, T.Yamada, C.C.Yun, L.Y.Zhang

First measurement of 30S + α resonant elastic scattering for the 30S(α, p) reaction rate

NUCLEAR REACTIONS 4H(30S, α), E(cm)=1.9-5.5 MeV, [30S secondary beam from 3He(28Si, 30S), E=7.3 MeV/nucleon]; measured Eα, Iα, differential σ(E) using an array of silicon strip detectors (SSDs), and parallel plate avalanche counters (PPACs) for monitoring the 30S beam, ΔE-E plot for light ion particle using the CNS Radioactive Ion Beam separator (CRIB) facility, University of Tokyo, and RIKEN. 34Ar; deduced levels above 11 MeV, α-resonances, J, π, α-widths, proton-width. R-matrix analysis. 30s(α, p), T=1-10 GK; deduced stellar reaction rate using new resonance data, and compared with statistical model (SM) calculations from NON-SMOKER code. Astrophysical impact on one-zone postprocessing type I x-ray burst (XRBs) calculations.

doi: 10.1103/PhysRevC.97.015802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetE2583. Data from this article have been entered in the XUNDL database. For more information, click here.


2017AL29      Phys.Rev.Lett. 119, 072701 (2017)

S.Almaraz-Calderon, K.E.Rehm, N.Gerken, M.L.Avila, B.P.Kay, R.Talwar, A.D.Ayangeakaa, S.Bottoni, A.A.Chen, C.M.Deibel, C.Dickerson, K.Hanselman, C.R.Hoffman, C.L.Jiang, S.A.Kuvin, O.Nusair, R.C.Pardo, D.Santiago-Gonzalez, J.Sethi, C.Ugalde

Study of the 26Alm(d, p)27Al Reaction and the Influence of the 26Al 0+ Isomer on the Destruction of 26Al in the Galaxy

NUCLEAR REACTIONS C, 2H(26Al, p), E=120 MeV; measured reaction products, Eγ, Iγ. 26Al; deduced σ(θ), reaction rates. Comparison with available data, DWBA calculations.

doi: 10.1103/PhysRevLett.119.072701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2278. Data from this article have been entered in the XUNDL database. For more information, click here.


2017PE09      Phys.Rev. C 96, 014306 (2017)

D.Perez-Loureiro, C.Wrede, M.B.Bennett, S.N.Liddick, A.Bowe, B.A.Brown, A.A.Chen, K.A.Chipps, N.Cooper, E.McNeice, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.Prokop, S.J.Quinn, J.Sakstrup, M.Santia, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam

Confirmation of the isomeric state in 26P

NUCLEAR REACTIONS 9Be(36Ar, 26P), E=150 MeV/nucleon; measured 26P recoils, Eγ, Iγ, (26P)γ-coin, half-life of the isomer by (recoils)γ(t) using A1900 fragment separator, Radio-Frequency Fragment Separator and SeGA array at NSCL-MSU facility. 26P; deduced level, isomer, S(p). Comparison with previous experimental data.

doi: 10.1103/PhysRevC.96.014306
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2017WI14      Phys.Rev.Lett. 119, 242701 (2017)

R.Wilkinson, G.Lotay, A.Lennarz, C.Ruiz, G.Christian, C.Akers, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, D.A.Hutcheon, D.Jedrejcic, A.M.Laird, L.Martin, E.McNeice, J.Riley, M.Williams

Direct Measurement of the Key Ec.m. = 456 keV Resonance in the Astrophysical 19Ne(p, γ)20Na Reaction and Its Relevance for Explosive Binary Systems

NUCLEAR REACTIONS H(19Ne, γ), E=9.24 MeV; measured reaction products, Eγ, Iγ, Eβ, Iβ. 19Ne, 20Na; deduced resonance parameters, reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.119.242701
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2016BE05      Phys.Rev.Lett. 116, 102502 (2016)

M.B.Bennett, C.Wrede, B.A.Brown, S.N.Liddick, D.Perez-Loureiro, D.W.Bardayan, A.A.Chen, K.A.Chipps, C.Fry, B.E.Glassman, C.Langer, N.R.Larson, E.I.McNeice, Z.Meisel, W.Ong, P.D.O'Malley, S.D.Pain, C.J.Prokop, H.Schatz, S.B.Schwartz, S.Suchyta, P.Thompson, M.Walters, X.Xu

Isospin Mixing Reveals 30P(p, γ)31S Resonance Influencing Nova Nucleosynthesis

RADIOACTIVITY 31Cl(EC), (β+) [from Be(36Ar, X)31Cl, E=150 MeV/nucleon]; measured decay products, Eγ, Iγ, Eβ, Iβ, β-γ-coin.; deduced energy levels and intensities, J, π, resonance parameters. Comparison with shell model calculations.

doi: 10.1103/PhysRevLett.116.102502
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2016BE19      Phys.Rev. C 93, 064310 (2016)

M.B.Bennett, C.Wrede, B.A.Brown, S.N.Liddick, D.Perez-Loureiro, D.W.Bardayan, A.A.Chen, K.A.Chipps, C.Fry, B.E.Glassman, C.Langer, N.R.Larson, E.I.McNeice, Z.Meisel, W.Ong, P.D.O'Malley, S.D.Pain, C.J.Prokop, S.B.Schwartz, S.Suchyta, P.Thompson, M.Walters, X.Xu

Isobaric multiplet mass equation in the A = 31, T = 3/2 quartets

RADIOACTIVITY 31Cl(β+); measured Eγ, Iγ, Eβ, βγ-, βγγ-coin using the Clovershare array at NSCL-MSU laboratory. 31S; deduced levels, IAS, isospin mixing, β feedings, isospin T=3/2 states. 31Cl; discussed predictions for the first excited state. Comparison with USDB and USDE shell-model calculations.

ATOMIC MASSES 31Cl, 31S, 31P, 31Si; analyzed isobaric multiplet mass equation (IMME) for T=3/2 quartet by quadratic and cubic fits. Discussed IMME breakdown and isospin mixing. Comparison with USDB and USDE shell-model calculations.

doi: 10.1103/PhysRevC.93.064310
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2016LO03      Phys.Rev.Lett. 116, 132701 (2016)

G.Lotay, G.Christian, C.Ruiz, C.Akers, D.S.Burke, W.N.Catford, A.A.Chen, D.Connolly, B.Davids, J.Fallis, U.Hager, D.A.Hutcheon, A.Mahl, A.Rojas, X.Sun

Direct Measurement of the Astrophysical 38K(p, γ)39Ca Reaction and Its Influence on the Production of Nuclides toward the End Point of Nova Nucleosynthesis

NUCLEAR REACTIONS 1H(38K, γ), E=386, 515, 689 keV; measured reaction products, Eγ, Iγ; deduced yields, resonance parameters, astrophysical reaction rates. Comparison with available data.

doi: 10.1103/PhysRevLett.116.132701
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2016PE10      Phys.Rev. C 93, 064320 (2016)

D.Perez-Loureiro, C.Wrede, M.B.Bennett, S.N.Liddick, A.Bowe, B.A.Brown, A.A.Chen, K.A.Chipps, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.J.Prokop, J.Quaglia, S.J.Quinn, J.Sakstrup, M.Santia, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam

β-delayed γ decay of 26P: Possible evidence of a proton halo

RADIOACTIVITY 26P, 24Al(β+), (EC)[from 9Be(36Ar, X), E=150 MeV/nucleon using A1900 fragment separator and the Radio-Frequency Fragment Separator (RFFS) at NSCL-MSU]; measured Eγ, Iγ, 26P ions, Eβ, Iβ, γγ-, βγγ-coin using GeDSSD detector for ions and β particles and SeGA array for γ rays. 26Si; deduced levels, J, π, Iβ feedings, B(GT) strengths, logft, mirror asymmetry, proton halo. Comparisons with β decay of 26Na mirror nucleus, previous experimental data for 26Si levels, and USDB shell-model calculations. 24Mg; observed γ rays. 25Al(p, γ)26Si, T9=0.01-0.5; calculated astrophysical reaction rates.

doi: 10.1103/PhysRevC.93.064320
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2016SA13      Phys.Lett. B 755, 481 (2016)

A.Sanetullaev, R.Kanungo, J.Tanaka, M.Alcorta, C.Andreoiu, P.Bender, A.A.Chen, G.Christian, B.Davids, J.Fallis, J.P.Fortin, N.Galinski, A.T.Gallant, P.E.Garrett, G.Hackman, B.Hadinia, S.Ishimoto, M.Keefe, R.Krucken, J.Lighthall, E.McNeice, D.Miller, J.Purcell, J.S.Randhawa, T.Roger, A.Rojas, H.Savajols, A.Shotter, I.Tanihata, I.J.Thompson, C.Unsworth, P.Voss, Z.Wang

Investigation of the role of 10Li resonances in the halo structure of 11Li(p, d)10Li through the transfer reaction

NUCLEAR REACTIONS 1H(11Li, d), (11Li, p), E=5.7 MeV/nucleon; measured reaction products; deduced resonance parameters, spectroscopic factor, σ(θ). DWBA analysis.

doi: 10.1016/j.physletb.2016.02.060
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2015FR01      Phys.Rev. C 91, 015803 (2015)

C.Fry, C.Wrede, S.Bishop, B.A.Brown, A.A.Chen, T.Faestermann, R.Hertenberger, A.Parikh, D.Perez-Loureiro, H.-F.Wirth, A.Garcia, R.Ortez

Discovery of 34g, mCl (p, γ) 35Ar resonances activated at classical nova temperatures

NUCLEAR REACTIONS 36Ar(d, t), E=22 MeV; measured triton spectra, σ(θ) using Q3D magnetic spectrograph at MLL-Garching facility. 35Ar; deduced levels. 34Cl(p, γ)35Ar; deduced resonance energies. 35Ar, 35Cl; compared experimental level densities of mirror nuclei with shell-model calculations.

doi: 10.1103/PhysRevC.91.015803
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2015KA15      Phys.Rev.Lett. 114, 192502 (2015)

R.Kanungo, A.Sanetullaev, J.Tanaka, S.Ishimoto, G.Hagen, T.Myo, T.Suzuki, C.Andreoiu, P.Bender, A.A.Chen, B.Davids, J.Fallis, J.P.Fortin, N.Galinski, A.T.Gallant, P.E.Garrett, G.Hackman, B.Hadinia, G.Jansen, M.Keefe, R.Krucken, J.Lighthall, E.McNeice, D.Miller, T.Otsuka, J.Purcell, J.S.Randhawa, T.Roger, A.Rojas, H.Savajols, A.Shotter, I.Tanihata, I.J.Thompson, C.Unsworth, P.Voss, Z.Wang

Evidence of Soft Dipole Resonance in 11Li with Isoscalar Character

NUCLEAR REACTIONS 2H(11Li, X)7Li/8Li/9Li/10Li/11Li, E=5.5 MeV/nucleon; measured reaction products. 11Li; deduced yields, σ(θ), excitation energy, soft dipole resonance. Comparison with ab initio calculations in the coupled cluster framework.

doi: 10.1103/PhysRevLett.114.192502
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2015SC16      Phys.Rev. C 92, 031302 (2015)

S.B.Schwartz, C.Wrede, M.B.Bennett, S.N.Liddick, D.Perez-Loureiro, A.Bowe, A.A.Chen, K.A.Chipps, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain, J.Pereira, C.Prokop, J.Quaglia, S.J.Quinn, J.Sakstrup, M.Santia, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam

Observation of Doppler broadening in β-delayed proton-γ decay

RADIOACTIVITY 26P(β+p)[from 9Be(36Ar, X), E=150 MeV/nucleon and A1900 fragment separator at NSCL-MSU]; measured Eγ, first observation of Doppler-broadened γ rays in β-delayed proton-γ decay, Iγ, γγ-coin, Eβ, βγ-correlated spectra using Si detectors for β and implanted nuclei, SeGA array for γ rays 25Al; deduced levels, β+p feedings. 26Si; deduced energies of proton emitting states from the kinematic analysis of Doppler-broadened γ rays. Comparison with previous experimental data. 24Mg, 26Al, 26Si; observed γ rays.

doi: 10.1103/PhysRevC.92.031302
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2014HU16      Phys.Rev. C 90, 025803 (2014)

J.Hu, J.J.He, A.Parikh, S.W.Xu, H.Yamaguchi, D.Kahl, P.Ma, J.Su, H.W.Wang, T.Nakao, Y.Wakabayashi, T.Teranishi, K.I.Hahn, J.Y.Moon, H.S.Jung, T.Hashimoto, A.A.Chen, D.Irvine, C.S.Lee, S.Kubono

Examination of the role of the 14O(α, p)17F reaction rate in type-I x-ray bursts

NUCLEAR REACTIONS 1H(17F, p), E=3.6 MeV/nucleon, [17F secondary beam from 2H(16O, n), E=6.6 MeV/nucleon primary reaction]; measured Ep, Ip, angular distribution using radioactive ion beam separator (CRIB) at CNS-RIKEN facility. 18Ne; deduced levels, resonances, J, π, L-transfers, widths, proton partial widths, resonance strengths. R-matrix analysis of experimental data. Comparison with previous experimental results. 14O(α, p)17F, at T9=0.25-3.0; deduced reaction rates and compared with other studies. Relevance to hot-CNO cycle of the rp-process in type-I x-ray bursts (XRBs).

doi: 10.1103/PhysRevC.90.025803
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2014KO41      Eur.Phys.J. A 50, 136 (2014)

T.Komatsubara, S.Kubono, T.Hayakawa, T.Shizuma, A.Ozawa, Y.Ito, Y.Ishibashi, T.Moriguchi, H.Yamaguchi, D.Kahl, S.Hayakawa, D.N.Binh, A.A.Chen, J.Chen, K.Setoodehnia, T.Kajino

Excited states above the proton threshold in 26Si

doi: 10.1140/epja/i2014-14136-4
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2014MC08      Nucl.Data Sheets 120, 88 (2014)

E.Mcneice, K.Setoodehnia, B.Singh, Y.Abe, D.N.Binh, A.A.Chen, J.Chen, S.Cherubini, S.Fukuoka, T.Hashimoto, T.Hayakawa, Y.Ishibashi, Y.Ito, D.Kahl, T.Komatsubara, S.Kubono, T.Moriguchi, D.Nagae, R.Nishikiori, T.Niwa, A.Ozawa, T.Shizuma, H.Suzuki, H.Yamaguchi, T.Yuasa

In-beam γ-ray Spectroscopy of 30P via the 28Si(3He, pγ)30P Reaction

NUCLEAR REACTIONS 28Si(3He, p), E=9 MeV; measured reaction products, Eγ, Iγ, γ-γ-coin.; deduced level structure, J, π, resonance states, γ-γ directional correlation of oriented nuclei. Comparison with available data.

doi: 10.1016/j.nds.2014.07.014
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2013BE41      Phys.Rev.Lett. 111, 232503 (2013)

M.B.Bennett, C.Wrede, K.A.Chipps, J.Jose, S.N.Liddick, M.Santia, A.Bowe, A.A.Chen, N.Cooper, D.Irvine, E.McNeice, F.Montes, F.Naqvi, R.Ortez, S.D.Pain J.Pereira, C.Prokop, J.Quaglia, S.J.Quinn, S.B.Schwartz, S.Shanab, A.Simon, A.Spyrou, E.Thiagalingam

Classical-Nova Contribution to the Milky Way's 26Al Abundance: Exit Channel of the Key 25Al(p, γ)26Si Resonance

RADIOACTIVITY 26P(β+) [from Be(36Ar, X)26P, E=150 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ- and βγγ-coin.; deduced resonances energy, J, π. Astrophysical implications.

doi: 10.1103/PhysRevLett.111.232503
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2013FA10      Phys.Rev. C 88, 045801 (2013)

J.Fallis, A.Parikh, P.F.Bertone, S.Bishop, L.Buchmann, A.A.Chen, G.Christian, J.A.Clark, J.M.D'Auria, B.Davids, C.M.Deibel, B.R.Fulton, U.Greife, B.Guo, U.Hager, C.Herlitzius, D.A.Hutcheon, J.Jose, A.M.Laird, E.T.Li, Z.H.Li, G.Lian, W.P.Liu, L.Martin, K.Nelson, D.Ottewell, P.D.Parker, S.Reeve, A.Rojas, C.Ruiz, K.Setoodehnia, S.Sjue, C.Vockenhuber, Y.B.Wang, C.Wrede

Constraining nova observables: Direct measurements of resonance strengths in 33S(p, γ)34Cl

NUCLEAR REACTIONS 1H(33S, γ)34Cl, E=194-514 MeV/nucleon; measured particle spectra, time-of-flight using DRAGON at ISAC-TRIUMF facility. 34Cl; deduced levels, resonances, resonance strengths, thermonuclear reaction rates for 33S(p, γ)34Cl reaction at T9=0.15-0.40, composition of 32,33,34S, 35,37Cl, 36,38Ar, 38,39K, 40Ca in oxygen-neon nova ejecta. Implications for nova nucleosynthesis.

doi: 10.1103/PhysRevC.88.045801
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2013IR02      Phys.Rev. C 88, 055803 (2013)

D.Irvine, A.A.Chen, A.Parikh, K.Setoodehnia, T.Faestermann, R.Hertenberger, H.-F.Wirth, V.Bildstein, S.Bishop, J.A.Clark, C.M.Deibel, J.Hendriks, C.Herlitzius, R.Krucken, W.N.Lennard, O.Lepyoshkina, R.Longland, G.Rugel, D.Seiler, K.Straub, C.Wrede

Evidence for the existence of the astrophysically important 6.40-MeV state of 31S

NUCLEAR REACTIONS 32S(d, t), E=24 MeV; measured E(t), I(t), σ(θ), using Q3D spectrograph at MLL-Garching facility. 31S; deduced levels, J, π, 31S and 31P mirror assignments. 30P(p, γ)31S; discussed impact on thermonuclear reaction rate in explosive hydrogen burning in classical novae. Comparison of 31S level structure with previous experimental results and evaluated data.

doi: 10.1103/PhysRevC.88.055803
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2013LA01      Phys.Rev.Lett. 110, 032502 (2013)

A.M.Laird, A.Parikh, A.St.J.Murphy, K.Wimmer, A.A.Chen, C.M.Deibel, T.Faestermann, S.P.Fox, B.R.Fulton, R.Hertenberger, D.Irvine, J.Jose, R.Longland, D.J.Mountford, B.Sambrook, D.Seiler, H.-F.Wirth

Is γ-Ray Emission from Novae Affected by Interference Effects in the 18F(p, α)15O Reaction?

NUCLEAR REACTIONS 19F(3He, t), E=25 MeV; measured reaction products. 19Ne; deduced energy levels, J, π, σ(θ), resonance parameters, total reaction rate. Comparison with available data, DWBA calculations.

doi: 10.1103/PhysRevLett.110.032502
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2013SE08      Phys.Rev. C 87, 065801 (2013)

K.Setoodehnia, A.A.Chen, D.Kahl, T.Komatsubara, J.Jose, R.Longland, Y.Abe, D.N.Binh, J.Chen, S.Cherubini, J.A.Clark, C.M.Deibel, S.Fukuoka, T.Hashimoto, T.Hayakawa, J.Hendriks, Y.Ishibashi, Y.Ito, S.Kubono, W.N.Lennard, T.Moriguchi, D.Nagae, R.Nishikiori, T.Niwa, A.Ozawa, P.D.Parker, D.Seiler, T.Shizuma, H.Suzuki, C.Wrede, H.Yamaguchi, T.Yuasa

Nuclear structure of 30S and its implications for nucleosynthesis in classical novae

NUCLEAR REACTIONS 32S(p, t), E=34.5 MeV; measured triton spectra, σ(θ) using Enge split-pole magnetic spectrograph at WNSL, Yale facility. 28Si(3He, n), E=9 MeV; measured Eγ, Iγ, γγ-coin, γ(θ), γγ(θ)(DCO) at UTTAC facility. 30S; deduced levels, resonances, J, π, multipolarity, σ/J, mixing ratio, branching ratios, proton and gamma widths, resonance strengths. DWBA and coupled reaction channel analyses of σ(θ) data in (p, t). 29P(p, γ)30S, at T=0.01-1.5 GK; deduced astrophysical reaction rates, nova isotopic abundances of Si to Ca mass region isotopes using 1D hydrodynamic model.

doi: 10.1103/PhysRevC.87.065801
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2012CH04      Phys.Rev. C 85, 015805 (2012)

J.Chen, A.A.Chen, G.Amadio, S.Cherubini, H.Fujikawa, S.Hayakawa, J.J.He, N.Iwasa, D.Kahl, L.H.Khiem, S.Kubono, S.Kurihara, Y.K.Kwon, M.La Cognata, J.Y.Moon, M.Niikura, S.Nishimura, J.Pearson, R.G.Pizzone, T.Teranishi, Y.Togano, Y.Wakabayashi, H.Yamaguchi

Strong 25Al+p resonances via elastic proton scattering with a radioactive 25Al beam

NUCLEAR REACTIONS 1H(25Al, p), [25Al secondary beam from 2H(24Mg, n), E=7.5 MeV/nucleon primary reaction], E=3.4 MeV/nucleon; measured Ep, Ip, energy loss, σ(E, θ). 26Si; deduced levels, resonances, J, π, proton widths. R-matrix analysis of excitation function data. RIKEN-CNS facility. Comparison of energy levels with results from other reaction studies.

doi: 10.1103/PhysRevC.85.015805
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2012CH18      Phys.Rev. C 85, 045809 (2012)

J.Chen, A.A.Chen, A.M.Amthor, D.Bazin, A.D.Becerril, A.Gade, D.Galaviz, T.Glasmacher, D.Kahl, G.Lorusso, M.Matos, C.V.Ouellet, J.Pereira, H.Schatz, K.Smith, B.Wales, D.Weisshaar, R.G.T.Zegers

26Si excited states via one-neutron removal from a 27Si radioactive ion beam

NUCLEAR REACTIONS 1H, C(27Si, 26Si), [27Si secondary beam from 9Be(36Ar, X), E=150 MeV/nucleon primary beam], E=84.3 MeV/nucleon; measured energy loss and residual energy for the fragments, Eγ, Iγ, γγ-coin, Doppler corrected γ-ray spectra using SeGA array at NSCL, MSU facility. 26Si; deduced levels. Comparison with previous studies.

doi: 10.1103/PhysRevC.85.045809
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2011PA14      Phys.Rev. C 83, 045806 (2011)

A.Parikh, K.Wimmer, T.Faestermann, R.Hertenberger, J.Jose, R.Longland, H.-F.Wirth, V.Bildstein, S.Bishop, A.A.Chen, J.A.Clark, C.M.Deibel, C.Herlitzius, R.Krucken, D.Seiler, K.Straub, C.Wrede

Improving the 30P(p, γ )31S rate in oxygen-neon novae: Constraints on Jπ values for proton-threshold states in 31S

NUCLEAR REACTIONS 31P(3He, t), E=25 MeV; measured E(t), I(t), σ(θ). 31S; deduced levels, J, π. 30P(p, γ)31S; deduced astrophysical reaction rates. Finite-range DWBA analysis. Comparison with previous experimental reaction rates and Hauser-Feshbach statistical model estimates.

doi: 10.1103/PhysRevC.83.045806
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2011PA40      Phys.Rev. C 84, 065808 (2011)

A.Parikh, K.Wimmer, T.Faestermann, R.Hertenberger, H.-F.Wirth, A.A.Chen, J.A.Clark, C.M.Deibel, C.Herlitzius, R.Krucken, D.Seiler, K.Setoodehnia, K.Straub, C.Wrede

Production of 26Al in stellar hydrogen-burning environments: Spectroscopic properties of states in 27Si

NUCLEAR REACTIONS 28Si(3He, α), E=25 MeV; measured Eα, Iα, σ(θ) using Q3D magnetic spectrograph. 27Si; deduced levels, J, π, L-values, spectroscopic factors. Finite-range DWBA analysis. Comparison with previous measurements and with shell-model calculations using OXBASH code. 26Al(p, γ)27Si; discussed thermonuclear reaction rate.

doi: 10.1103/PhysRevC.84.065808
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2011SE03      Phys.Rev. C 83, 018803 (2011)

K.Setoodehnia, A.A.Chen, T.Komatsubara, S.Kubono, D.N.Binh, J.F.Carpino, J.Chen, T.Hashimoto, T.Hayakawa, Y.Ishibashi, Y.Ito, D.Kahl, T.Moriguchi, H.Oishi, A.Ozawa, T.Shizuma, Y.Sugiyama, H.Yamaguchi

Spins and parities of astrophysically important 30S states from 28Si(3He, nγ )30S

NUCLEAR REACTIONS 28Si(3He, n), E=9 MeV; measured Eγ, Iγ, γγ-coin, natural Si target. 30S; deduced levels, J, π. Comparison with mirror nucleus 30Si. Astrophysical relevance to the reaction rates for 29P(p, γ).

doi: 10.1103/PhysRevC.83.018803
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2010CH38      Nucl.Phys. A834, 667c (2010)

J.Chen, A.A.Chen, H.Schatz, S.Kubono, A.B.Reyes, A.Smith, B.Wales, C.Ouellet, D.Kahl, D.G.Redondo, G.Lorusso, J.LeNestour, J.P.Conca, K.Smith, M.Amthor, M.Matos, H.Yamaguchi, N.Iwasa, S.Hayakawa, S.Michimasa, T.Teranishi, Y.Kurihawa, Y.Wakabayashi

Study of astrophysically important states in 26Si with the p(27Si, 26Si*)d reaction and the p(25Al, p)25Al elastic scattering

NUCLEAR REACTIONS 1H(25Al, 25Al), E≈3.4 MeV/nucleon; measured σ(θ). 1H(27Si, 26Si), E=89 MeV/nucleon; measured Eγ, Iγ, E(particle), I(particle), (particle)γ-coin. 26Si deduced levels, J, π, resonance parameteres using R-matrix fit.

doi: 10.1016/j.nuclphysa.2010.01.119
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2010ER02      Phys.Rev. C 81, 045808 (2010)

L.Erikson, C.Ruiz, F.Ames, P.Bricault, L.Buchmann, A.A.Chen, J.Chen, H.Dare, B.Davids, C.Davis, C.M.Deibel, M.Dombsky, S.Foubister, N.Galinski, U.Greife, U.Hager, A.Hussein, D.A.Hutcheon, J.Lassen, L.Martin, D.F.Ottewell, C.V.Ouellet, G.Ruprecht, K.Setoodehnia, A.C.Shotter, A.Teigelhofer, C.Vockenhuber, C.Wrede, A.Wallner

First direct measurement of the 23Mg(p, γ)24Al reaction

NUCLEAR REACTIONS 23Mg(p, γ)24Al, E=500 keV; measured Eγ, Iγ, γγ-, (recoil)γ-coin, (recoil)γ(t), thick target yields, resonance strengths; deduced resonance, reaction rates. DRAGON recoil spectrometer. GEANT3 simulations.

doi: 10.1103/PhysRevC.81.045808
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1784. Data from this article have been entered in the XUNDL database. For more information, click here.


2010GA36      J.Phys.:Conf.Ser. 202, 012009 (2010)

D.Galaviz, A.M.Amthor, D.Bazin, A.D.Becerril, B.A.Brown, A.A.Chen, A.Cole, J.M.Cook, T.Elliot, A.Estrade, Z.S.Fulop, A.Gade, T.Glasmacher, A.Heger, M.E.Howard, R.Kessler, G.Lorusso, M.Matos, F.Montes, W.Muller, J.Pereira, H.Schatz, B.Sherrill, F.Schertz, Y.Shimbara, E.Smith, K.Smith, A.Tamii, A.Stolz, D.Weisshaar, M.Wallace, M.Wiescher, R.G.T.Zegers

Nucleosynthesis of proton-rich nuclei. Experimental results on the rp-process

NUCLEAR REACTIONS 9Be(36Ar, X)30S, (40Ca, X)36K, (40Ca, X)37Ca, E=140 MeV/nucleon; measured 30S, 36K, 37Ca [obtained by further stripping of one nucleon from fragmentation product] in-flight Eγ, Iγ, (recoil)γ-coin; deduced 29P(p, γ)30S stellar reaction rate relevant to X-bursts. Compared with other published reaction rates.

doi: 10.1088/1742-6596/202/1/012009
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2010SE07      Phys.Rev. C 82, 022801 (2010)

K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.M.Deibel, S.D.Geraedts, D.Kahl, P.D.Parker, D.Seiler, C.Wrede

Structure of 30S with 32S(p, t)30S and the thermonuclear 29P(p, γ)30S reaction rate

NUCLEAR REACTIONS 32S(p, t), E=34.5 MeV; measured triton spectra. 30S; deduced level, J, π, γ widths, proton widths, resonance strengths; deduced astrophysical reaction rates for 29P(p, γ). 30Si, 30S; deduced mirror states.

doi: 10.1103/PhysRevC.82.022801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1813. Data from this article have been entered in the XUNDL database. For more information, click here.


2010SE08      Nucl.Phys. A834, 205c (2010)

K.Setoodehnia, A.-A.Chen, J.Chen, J.-A.Clark, C.Deibel, D.Kahl, W.-N.Lennard, P.-D.Parker, C.Wrede

Study of astrophysically important resonant states in 30S using the 32S(p, t)30S reaction

NUCLEAR REACTIONS 32S(p, t), E=33.5, 34.5 MeV; measured E(triton), I(triton), Eγ, Iγ, (triton)γ-coin. 30S deduced levels, J, π.

doi: 10.1016/j.nuclphysa.2009.12.041
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2010SE22      J.Phys.:Conf.Ser. 202, 012042 (2010)

K.Setoodehnia, A.A.Chen, J.Chen, J.A.Clark, C.Deibel, D.Kahl, W.N.Lennard, P.D.Parker, C.Wrede

Study of astrophysically important resonant states in 30S using the 32S(p, t)30S reaction

NUCLEAR REACTIONS 32S(p, t)30S, E=33.5, 34.5 MeV; measured E(triton), I(triton, θ); deduced levels, J, π. J, π preliminary, not shown in the paper.

doi: 10.1088/1742-6596/202/1/012042
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2010WR01      Phys.Rev. C 81, 055503 (2010)

C.Wrede, J.A.Clark, C.M.Deibel, T.Faestermann, R.Hertenberger, A.Parikh, H.-F.Wirth, S.Bishop, A.A.Chen, K.Eppinger, A.Garcia, R.Krucken, O.Lepyoshkina, G.Rugel, K.Setoodehnia

Toward precise QEC values for the superallowed 0+ → 0+ β decays of T=2 nuclides: The masses of 20Na, 24Al, 28P, and 32Cl

NUCLEAR REACTIONS 20Ne, 24Mg, 28Si, 32S, 36Ar(3He, t), E=32 MeV; measured triton spectra using Q3D magnetic spectrograph; deduced levels, Q values, mass excesses.

ATOMIC MASSES 20Na, 24Al, 28P, 32Cl; measured mass excesses using (3He, t) reaction. 36Ar(3He, t)36K used for calibration. Comparison with AME-2003.

doi: 10.1103/PhysRevC.81.055503
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2010WR02      Phys.Rev. C 82, 035805 (2010)

C.Wrede, J.A.Clark, C.M.Deibel, T.Faestermann, R.Hertenberger, A.Parikh, H.-F.Wirth, S.Bishop, A.A.Chen, K.Eppinger, B.M.Freeman, R.Krucken, O.Lepyoshkina, G.Rugel, K.Setoodehnia

Properties of 20Na, 24Al, 28P, 32Cl, and 36K for studies of explosive hydrogen burning

NUCLEAR REACTIONS 20Ne, 24Mg, 28Si, 32S, 36Ar(3He, t), E=32 MeV; measured E(t), I(t); deduced levels and resonances. 19Ne, 23Mg, 27Si, 31S, 35Ar(p, γ); deduced improved thermonuclear reaction rates. 36Cl, 36Ar, 36K; analyzed A=36, T=1 triplet states. Comparison with previous experiments.

doi: 10.1103/PhysRevC.82.035805
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Data from this article have been entered in the XUNDL database. For more information, click here.


2008KW01      J.Korean Phys.Soc. 53, 1141 (2008)

Y.K.Kwon, C.S.Lee, J.Y.Moon, J.H.Lee, J.Y.Kim, M.K.Cheoun, S.Kubono, N.Iwasa, K.Inafuku, H.Yamaguchi, J.J.He, A.Saito, Y.Wakabayashi, H.Fujikawa, G.Amadio, L.H.Khiem, M.Tanaka, A.A.Chen, S.Kato, Y.Fuchi, N.Fukunishi

Astrophysically Important 26Si States Studied with the 28Si(4He, 6He)26Si Reaction

NUCLEAR REACTIONS 28Si(α, 6He), E=120 MeV; measured charged particle spectra, σ(θ). 26Si; deduced level energies.

doi: 10.3938/jkps.53.1141
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2008VO01      J.Phys.(London) G35, 014034 (2008)

C.Vockenhuber, C.O.Ouellet, L.-S.The, L.Buchmann, J.Caggiano, A.A.Chen, J.M.D'Auria, B.Davids, L.Fogarty, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, D.Ottewell, M.Paul, M.M.Pavan, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, A.Wallner

40Ca(α, γ)44Ti and the production of 44Ti in supernovae

NUCLEAR REACTIONS 4He(40Ca, γ), E=600-1150 keV/nucleon; measured Eγ, γγ-, (recoil)γ-coin, excitation function.

doi: 10.1088/0954-3899/35/1/014034
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2007GR11      Nucl.Instrum.Methods Phys.Res. B261, 1089 (2007)

U.Greife, J.Livesay, C.Jewett, K.Chipps, F.Sarazin, D.Bardayan, J.Blackmon, C.Nesaraja, M.S.Smith, A.Champagne, R.Fitzgerald, K.Jones, J.Thomas, R.Kozub, L.Buchmann, J.Caggiano, D.Hunter, D.Hutcheon, A.Olin, D.Ottewell, J.Rogers, C.Ruiz, G.Ruprecht, M.Trinczek, C.Vockenhuber, S.Bishop, J.D'Auria, M.Lamay, W.Liu, C.Wrede, M.L.Chatterjee, A.A.Chen, J.Pearson, S.Engel, A.M<.Laird, D.Gigliotti, A.Hussein

Recent results of experiments with radioactive 21Na and 7Be ion beams

NUCLEAR REACTIONS 1H(21Na, γ), E=1.18 MeV/nucleon; measured Eγ, Iγ, yields. 1H(7Be, X), E=4-27 MeV; measured elastic and inelastic scattering σ.

doi: 10.1016/j.nimb.2007.03.055
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1576.


2007VO03      Nucl.Instrum.Methods Phys.Res. B259, 688 (2007)

C.Vockenhuber, C.O.Ouellet, L.Buchmann, J.Caggiano, A.A.Chen, J.M.D'Auria, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, K.Jayamanna, D.Ottewell, M.Paul, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, A.Wallner

The 40Ca(α, γ)44Ti reaction at DRAGON

NUCLEAR REACTIONS 4He(40Ca, γ)44Ti, E=1.135 MeV/nucleon; measured yield and resonance strength at DRAGON recoil mass spectrometer.

doi: 10.1016/j.nimb.2007.01.222
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2007VO06      Phys.Rev. C 76, 035801 (2007)

C.Vockenhuber, C.O.Ouellet, L.-S.The, L.Buchmann, J.Caggiano, A.A.Chen, H.Crawford, J.M.D'Auria, B.Davids, L.Fogarty, D.Frekers, A.Hussein, D.A.Hutcheon, W.Kutschera, A.M.Laird, R.Lewis, E.O'Connor, D.Ottewell, M.Paul, M.M.Pavan, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, B.Wales, A.Wallner

Measurement of the 40Ca(α, γ)44Ti reaction relevant for supernova nucleosynthesis

NUCLEAR REACTIONS 4He(40Ca, γ)44Ti, E=0.60-1.15 MeV/nucleon; measured recoil energies, yields, and cross section.

doi: 10.1103/PhysRevC.76.035801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1583.


2006MA81      Phys.Rev.Lett. 97, 242503 (2006)

C.Matei, L.Buchmann, W.R.Hannes, D.A.Hutcheon, C.Ruiz, C.R.Brune, J.Caggiano, A.A.Chen, J.D'Auria, A.Laird, M.Lamey, ZH.Li, WP.Liu, A.Olin, D.Ottewell, J.Pearson, G.Ruprecht, M.Trinczek, C.Vockenhuber, C.Wrede

Measurement of the Cascade Transition via the First Excited State of 16O in the 12C(α, γ)16O Reaction, and Its S Factor in Stellar Helium Burning

NUCLEAR REACTIONS 4He(12C, γ), E(cm)=2.22-5.42 MeV; measured Eγ, Iγ, (particle)γ-coin; deduced σ, astrophysical S-factor. Recoil separator.

doi: 10.1103/PhysRevLett.97.242503
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1497.


2006MU07      Phys.Rev. C 73, 034320 (2006)

A.St.J.Murphy, M.Aliotta, T.Davinson, C.Ruiz, P.J.Woods, J.M.D'Auria, L.Buchmann, A.A.Chen, A.M.Laird, F.Sarazin, P.Walden, B.R.Fulton, J.E.Pearson, B.A.Brown

Level structure of 21Mg: Nuclear and astrophysical implications

NUCLEAR REACTIONS 1H(20Na, p), E=1.25, 1.60 MeV/nucleon; measured recoil proton spectra, σ(θ). 21Mg deduced resonance energies, widths. 20Na(p, γ), E=low; calculated astrophysical reaction rate.

doi: 10.1103/PhysRevC.73.034320
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1496. Data from this article have been entered in the XUNDL database. For more information, click here.


2006RU09      Phys.Rev.Lett. 96, 252501 (2006)

C.Ruiz, A.Parikh, J.Jose, L.Buchmann, J.A.Caggiano, A.A.Chen, J.A.Clark, H.Crawford, B.Davids, J.M.D'Auria, C.Davis, C.Deibel, L.Erikson, L.Fogarty, D.Frekers, U.Greife, A.Hussein, D.A.Hutcheon, M.Huyse, C.Jewett, A.M.Laird, R.Lewis, P.Mumby-Croft, A.Olin, D.F.Ottewell, C.V.Ouellet, P.Parker, J.Pearson, G.Ruprecht, M.Trinczek, C.Vockenhuber, C.Wrede

Measurement of the Ec.m. = 184 keV Resonance Strength in the 26gAl(p, γ)27Si Reaction

NUCLEAR REACTIONS 1H(26Al, γ), E=5.122, 5.226, 5.850 MeV; measured Eγ, (recoil)γ-coin. 26Al(p, γ), E(cm) ≈ 184 keV; deduced resonance strength. Astrophysical implications discussed.

doi: 10.1103/PhysRevLett.96.252501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1449.


2005CH30      Nucl.Phys. A752, 510c (2005)

A.A.Chen, R.E.Azuma, S.Bishop, L.Buchmann, M.L.Chatterjee, J.M.D'Auria, S.Engel, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, D.Hutcheon, C.C.Jewett, J.Jose, J.D.King, A.M.Laird, M.Lamey, R.Lewis, W.Liu, A.Olin, D.Ottewell, P.Parker, J.Rogers, C.Ruiz, M.Trinczek, C.Wrede

The 21Na(p, γ)22Mg reaction in novae and x-ray bursts

NUCLEAR REACTIONS 1H(21Na, γ), E(cm) ≈ 200-1100 keV; measured thick-target yield. 21Na(p, γ), E=low; deduced resonance parameters, astrophysical reaction rate.

doi: 10.1016/j.nuclphysa.2005.02.136
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1525.


2005EN07      Nucl.Instrum.Methods Phys.Res. A 553, 491 (2005)

S.Engel, D.Hutcheon, S.Bishop, L.Buchmann, J.Caggiano, M.L.Chatterjee, A.A.Chen, J.D'auria, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, C.C.Jewett, A.M.Laird, M.Lamey, W.Liu, A.Olin, D.Ottewell, J.Pearson, C.Ruiz, G.Ruprecht, M.Trinczek, C.Vockenhuber, C.Wrede

Commissioning the DRAGON facility at ISAC

NUCLEAR REACTIONS 20Ne(p, γ), 21Ne(p, γ), 24Mg(p, γ), E=214 keV-1.1 MeV; measured products, Eγ, Iγ; deduced resonance parameters. Data were imported from EXFOR entry C1403.

doi: 10.1016/j.nima.2005.07.029
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1403.


2005FI01      Nucl.Phys. A748, 351 (2005)

R.Fitzgerald, E.Abbotoy, D.W.Bardayan, J.C.Blackmon, A.E.Champagne, A.A.Chen, U.Greife, D.W.Hill, A.N.James, R.L.Kozub, T.A.Lewis, R.Livesay, Z.Ma, S.L.Mahan, J.W.McConnell, W.T.Milner, B.H.Moazen, P.D.Parker, D.E.Pierce, M.E.Roettger, L.Sahin, D.Shapira, M.S.Smith, F.Strieder, K.B.Swartz, J.S.Thomas, D.W.Visser

Studies of (p, γ) reactions with the Daresbury Recoil Separator at ORNL'S HRIBF

NUCLEAR REACTIONS 1H(17O, γ), E=12.5 MeV; measured particle spectra; deduced resonance strength. Recoil separator, other reactions discussed.

doi: 10.1016/j.nuclphysa.2004.09.155
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1160.


2005RU01      Phys.Rev. C 71, 025802 (2005)

C.Ruiz, T.Davinson, F.Sarazin, I.Roberts, A.Robinson, P.J.Woods, L.Buchmann, A.C.Shotter, P.Walden, N.M.Clarke, A.A.Chen, B.R.Fulton, D.Groombridge, J.Pearson, A.S.Murphy

Multichannel R-matrix analysis of elastic and inelastic resonances in the 21Na + p compound system

NUCLEAR REACTIONS 1H(21Na, p), E=580-1560 keV/nucleon; measured elastic and inelastic recoil proton spectra, σ(θ). 22Mg deduced resonance energies, widths, J, π, analog states. 21Na(p, γ), E=low; calculated reaction rate. R-matrix analysis.

doi: 10.1103/PhysRevC.71.025802
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2005SV01      J.Phys.(London) G31, S1663 (2005)

C.E.Svensson, P.Amaudruz, C.Andreoiu, A.Andreyev, R.A.E.Austin, G.C.Ball, D.Bandyopadhyay, A.J.Boston, R.S.Chakrawarthy, A.A.Chen, R.Churchman, T.E.Drake, P.Finlay, P.E.Garrett, G.F.Grinyer, G.Hackman, B.Hyland, B.Jones, R.Kanungo, R.Maharaj, J.P.Martin, D.Morris, A.C.Morton, C.J.Pearson, A.A.Phillips, J.J.Ressler, R.Roy, F.Sarazin, M.A.Schumaker, H.C.Scraggs, M.B.Smith, N.Starinsky, J.J.Valiente-Dobon, J.C.Waddington, L.M.Watters

TIGRESS: TRIUMF-ISAC gamma-ray escape-suppressed spectrometer

doi: 10.1088/0954-3899/31/10/050
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2005TR11      Nucl.Phys. A758, 729c (2005)

M.Trinczek, C.C.Jewett, J.M.D'Auria, S.Bishop, L.Buchmann, A.A.Chen, S.Engel, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, D.Hutcheon, J.Jose, A.M.Laird, M.Lamey, R.Lewis, A.Olin, D.Ottewell, P.Parker, M.M.Pavan, J.E.Pearson, J.Rogers, C.Ruiz, C.Wrede

Direct Measurement of the 21Na(p, γ)22Mg Reaction: Resonance Strengths and Gamma-Gamma Analysis

NUCLEAR REACTIONS 1H(21Na, γ), E(cm)=200-1135 keV; measured Eγ, Iγ, γγ-coin. 22Mg deduced levels, J, π, resonance strengths.

doi: 10.1016/j.nuclphysa.2005.05.131
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2004DA17      Phys.Rev. C 69, 065803 (2004)

J.M.D'Auria, R.E.Azuma, S.Bishop, L.Buchmann, M.L.Chatterjee, A.A.Chen, S.Engel, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, D.Hutcheon, C.C.Jewett, J.Jose, J.D.King, A.M.Laird, M.Lamey, R.Lewis, W.Liu, A.Olin, D.Ottewell, P.Parker, J.Rogers, C.Ruiz, M.Trinczek, C.Wrede

The 21Na(p, γ)22Mg reaction from Ec.m. = 200 to 1103 keV in novae and x-ray bursts

NUCLEAR REACTIONS 1H(21Na, γ), E(cm)=200-1103 keV; measured Eγ, Iγ, (particle)γ-coin; deduced resonance energies and strengths. 21Na(p, γ), E=low; deduced astrophysical reaction rates.

doi: 10.1103/PhysRevC.69.065803
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1044.


2003AZ05      Nucl.Phys. A718, 119c (2003)

R.E.Azuma, S.Bishop, L.Buchmann, M.L.Chatterjee, A.A.Chen, J.M.D'Auria, T.Davinson, S.Engel, B.R.Fulton, D.Gigliotti, U.Greife, D.Groombridge, D.Hunter, A.Hussein, D.Hutcheon, C.Jewett, J.D.King, N.Khan, S.Kubono, A.M.Laird, M.Lamey, R.Lewis, L.Ling, W.Liu, S.Michimasa, A.S.Murphy, A.Olin, D.Ottewell, P.Parker, J.Pearson, I.Roberts, A.Robinson, J.G.Rogers, G.Roy, C.Ruiz, F.Sarazin, A.C.Shotter, H.Sprenger, F.Strieder, P.Walden, P.J.Woods, C.Wrede

Results of 21Na + p Experiments at ISAC

NUCLEAR REACTIONS 1H(21Na, 21Na), E=0.45-1.4 MeV; measured recoil proton spectra; deduced excitation function. 1H(21Na, γ), E=220, 855 keV/nucleon; measured Eγ, (particle)γ-coin. 22Mg deduced resonance features.

doi: 10.1016/S0375-9474(03)00688-2
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2003BI03      Phys.Rev.Lett. 90, 162501 (2003); Erratum Phys.Rev.Lett. 90, 229902 (2003)

S.Bishop, R.E.Azuma, L.Buchmann, A.A.Chen, M.L.Chatterjee, J.M.D'Auria, S.Engel, D.Gigliotti, U.Greife, M.Hernanz, D.Hunter, A.Hussein, D.Hutcheon, C.Jewett, J.Jose, J.King, S.Kubono, A.M.Laird, M.Lamey, R.Lewis, W.Liu, S.Michimasa, A.Olin, D.Ottewell, P.D.Parker, J.G.Rogers, F.Strieder, C.Wrede

21Na(p, γ)22Mg Reaction and Oxygen-Neon Novae

NUCLEAR REACTIONS 1H(21Na, γ), E(cm) ≈ 202-223 keV; measured Eγ, (particle)γ-coin, thick-target yields; deduced resonance energy, width. 21Na(p, γ), E=low; deduced astrophysical reaction rate.

doi: 10.1103/PhysRevLett.90.162501
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0992.


2003BI08      Nucl.Phys. A718, 263c (2003)

S.Bishop, R.Azuma, L.Buchmann, A.A.Chen, M.L.Chatterjee, J.M.D'Auria, S.Engel, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, D.Hutcheon, C.Jewett, J.King, S.Kubono, M.Lamey, R.Lewis, W.Liu, S.Michimasa, A.Olin, D.Ottewell, P.D.Parker, J.Rogers, C.Wrede

Nuclear Astrophysics Studies at DRAGON: The 21Na(p, γ)22Mg Reaction and Oxygen-Neon Novae

NUCLEAR REACTIONS 1H(21Na, γ), E(cm) ≈ 202-224 keV; measured thick target yields. 21Na(p, γ), E=low; deduced astrophysical reaction rate. Recoil mass separator.

doi: 10.1016/S0375-9474(03)00726-7
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0992.


2003BL11      Nucl.Phys. A718, 127c (2003)

J.C.Blackmon, D.W.Bardayan, W.Bradfield-Smith, R.Brummitt, A.E.Champagne, A.A.Chen, T.Davinson, L.Dessieux, M.W.Guidry, K.I.Hahn, G.M.Hale, W.R.Hix, R.L.Kozub, Z.Ma, P.D.Parker, G.Rajbaidya, R.C.Runkle, C.M.Rowland, A.C.Shotter, M.S.Smith, L.A.Van Wormer, D.W.Visser, P.J.Woods

The 14O(α, p)17F Reaction Rate

NUCLEAR REACTIONS 1H(17F, 17F), (17F, 17F'), (17F, 14O), E(cm) ≈ 1-4 MeV; measured particle spectra. 17F(p, p'), E(cm)=2-2.5 MeV; deduced σ. 14O(α, p), E=low; deduced astrophysical reaction rate. R-matrix analysis.

doi: 10.1016/S0375-9474(03)00689-4
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1138.


2003HU10      Nucl.Phys. A718, 515c (2003)

D.A.Hutcheon, S.Bishop, L.Buchmann, M.L.Chatterjee, A.A.Chen, J.M.D'Auria, S.Engel, D.Gigliotti, U.Greife, D.Hunter, A.Hussein, C.Jewett, N.Khan, A.Lamey, W.Liu, A.Olin, D.Ottewell, J.G.Rogers, G.Roy, H.Sprenger, C.Wrede

The DRAGON facility for nuclear astrophysics at TRIUMF-ISAC

NUCLEAR REACTIONS 1H(15N, α), E ≈ 412-452 keV/nucleon; measured resonance yield curve. 1H(21Na, γ), E=220 keV/nucleon; measured particle spectra, (particle)γ-coin.

doi: 10.1016/S0375-9474(03)00828-5
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2002RU03      Phys.Rev. C65, 042801 (2002)

C.Ruiz, F.Sarazin, L.Buchmann, T.Davinson, R.E.Azuma, A.A.Chen, B.R.Fulton, D.Groombridge, L.Ling, A.Murphy, J.Pearson, I.Roberts, A.Robinson, A.C.Shotter, P.Walden, P.J.Woods

Strong Resonances in Elastic Scattering of Radioactive 21Na on Protons

NUCLEAR REACTIONS 1H(21Na, 21Na'), E(cm)=0.45-1.4 MeV; measured σ(θ), recoil proton spectra. 22Mg deduced resonance features.

doi: 10.1103/PhysRevC.65.042801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1542.


2001BL06      Nucl.Phys. A688, 142c (2001)

J.C.Blackmon, D.W.Bardayan, W.Bradfield-Smith, A.E.Champagne, A.A.Chen, T.Davinson, K.I.Hahn, R.L.Kozub, Z.Ma, P.D.Parker, G.Rajbaidya, R.C.Runkle, C.M.Rowland, A.C.Shotter, M.S.Smith, K.B.Swartz, D.W.Visser, P.J.Woods

Determination of the 14O(α, p)17Fg.s. Reaction Rate bt Measurement of the 1H(17F, α)14O Cross Section

NUCLEAR REACTIONS 1H(17F, α), (17F, p), E(cm)=2-4 MeV; measured σ(θ), reaction rates. 18Ne deduced resonance widths and strengths, comparison with calculations and earlier data.

doi: 10.1016/S0375-9474(01)00686-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1636.


2001CH35      Phys.Rev. C63, 065807 (2001)

A.A.Chen, R.Lewis, K.B.Swartz, D.W.Visser, P.D.Parker

Structure of 22Mg and Its Implications for Explosive Nucleosynthesis

NUCLEAR REACTIONS 12C(16O, 6He), E=90 MeV; measured particle spectra, σ(θ). 22Mg deduced levels, resonances. 18Ne(α, p), E not given; calculated stellar reaction rates.

doi: 10.1103/PhysRevC.63.065807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1237.


2001CH43      Nucl.Phys. A688, 146c (2001)

A.A.Chen, R.Lewis, K.B.Swartz, D.W.Visser, P.D.Parker

The Structure of 22Mg and Its Implications for Explosive Nucleosynthesis

NUCLEAR REACTIONS 12C(16O, 6He), E=90 MeV; measured 6He excitation energy spectrum. 18Ne(α, p), E=low; calculated reaction rate at temperatures of astrophysical interest, comparison with previous calculations. 22Mg deduced levels energy.

doi: 10.1016/S0375-9474(01)00687-X
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2000BB04      Phys.Rev. C62, 055804 (2000)

D.W.Bardayan, J.C.Blackmon, C.R.Brune, A.E.Champagne, A.A.Chen, J.M.Cox, T.Davinson, V.Y.Hansper, M.A.Hofstee, B.A.Johnson, R.L.Kozub, Z.Ma, P.D.Parker, D.E.Pierce, M.T.Rabban, A.C.Shotter, M.S.Smith, K.B.Swartz, D.W.Visser, P.J.Woods

The Astrophysically Important 3+ State in 18Ne and the 17F(p, γ)18Ne Stellar Rate

NUCLEAR REACTIONS 1H(17F, 17F), (17F, p), E=9-12 MeV; measured recoil proton spectra, angular distributions, (proton)(fluorine)-coin. 18Ne; deduced resonance J, π. 17F(p, γ), E not given; calculated astrophysical reaction rates. 1H(17O, 17O), E=10.1, 12.2 MeV; measured proton angular distributions. Silicon detector array.

doi: 10.1103/PhysRevC.62.055804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0759.


1999BA49      Phys.Rev.Lett. 83, 45 (1999)

D.W.Bardayan, J.C.Blackmon, C.R.Brune, A.E.Champagne, A.A.Chen, J.M.Cox, T.Davinson, V.Y.Hansper, M.A.Hofstee, B.A.Johnson, R.L.Kozub, Z.Ma, P.D.Parker, D.E.Pierce, M.T.Rabban, A.C.Shotter, M.S.Smith, K.B.Swartz, D.W.Visser, P.J.Woods

Observation of the Astrophysically Important 3+ State in 18Ne via Elastic Scattering of a Radioactive 17F Beam from 1H

NUCLEAR REACTIONS 1H(17F, 17F), E ≈ 10-12 MeV; measured proton yields, (proton)(fluorine)-coin. 18Ne deduced resonance energy, width. 17F(p, γ), E not given; calculated resonance contribution to proton capture rate. Astrophysical implications discussed.

doi: 10.1103/PhysRevLett.83.45
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC0184.


1999YI01      Phys.Rev. C60, 028801 (1999)

K.O.Yildiz, N.P.T.Bateman, Y.M.Butt, A.A.Chen, K.B.Swartz, P.D.Parker

Thick Target Yields of 26Alg.s. from the 16O(16O, x)26Alg.s. and 16O(14N, x)26Alg.s. Reactions

NUCLEAR REACTIONS 16O(16O, X)26Al, E=80-150 MeV; 16O(14N, X)26Al, E=115 MeV; measured thick target yields; deduced production of 26Al in proto-solar nebula. Previous measurements included in analysis. Comparison with model predictions.

doi: 10.1103/PhysRevC.60.028801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1235.


1998BA19      Phys.Rev. C57, 2022 (1998)

N.P.T.Bateman, D.W.Bardayan, Y.M.Butt, A.A.Chen, K.O.Yildiz, B.M.Young, P.D.Parker

Thick Target Yield of 26Al from the 12C(16O, x)26Al(g.s.) Reaction

NUCLEAR REACTIONS 12C(16O, X)26Al, E=45, 65, 140 MeV; measured thick target yield; deduced σ. Activation method.

doi: 10.1103/PhysRevC.57.2022
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1998UT02      Phys.Rev. C57, 2731 (1998); Erratum Phys.Rev. C58, 1354 (1998)

S.Utku, J.G.Ross, N.P.T.Bateman, D.W.Bardayan, A.A.Chen, J.Gorres, A.J.Howard, C.Iliadis, P.D.Parker, M.S.Smith, R.B.Vogelaar, M.Wiescher, K.Yildiz

Breakout from the Hot CNO Cycle: The 18F(p, γ) vs 18F(p, α) branching ratio

NUCLEAR REACTIONS 19F(3He, t), (3He, tα), (3He, pt), E=29.8 MeV; 16O(6Li, t), (6Li, 3He), E=32 MeV; measured particle spectra, tp-, tα-coin; deduced reaction rates for 18F + p. 19F deduced levels, resonance features. Astrophysical implications.

doi: 10.1103/PhysRevC.57.2731
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1997BA51      Nucl.Phys. A621, 60c (1997)

N.P.T.Bateman, D.W.Bardayan, Y.M.Butt, A.A.Chen, K.O.Yildiz, B.M.Young, P.D.Parker, A.E.Champagne

The Production of 26Al in the Early Solar System by Oxygen Rich Cosmic Rays

NUCLEAR REACTIONS 12C(16O, X)26Al, E=45, 65, 140 MeV; measured residual decay associated βγ(t); deduced residual yield, astrophysical consequences.

doi: 10.1016/S0375-9474(97)00213-3
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