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NSR database version of April 27, 2024.

Search: Author = H.Sims

Found 16 matches.

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2020HA03      Phys.Rev. C 101, 015804 (2020)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

γ-ray spectroscopy of astrophysically important states in ³⁹Ca

NUCLEAR REACTIONS ⁴⁰Ca(³He, αγ)³⁹Ca, E=30 MeV; Measured Eγ, Iγ, Eα, Iα, αγ-coin, reaction products using the GODDESS array (Gammasphere for γ detection and ORRUBA for particle detection) at the ATLAS-ANL facility. ³⁹Ca; deduced levels, J, π, γ-branching ratios. ³⁸K(p, γ)³⁹Ca, T=0.1-0.4 GK; deduced resonance parameters, astrophysical reaction rates. Discussed impact on abundances of isotopes created at the endpoint of nova nucleosynthesis.

doi: 10.1103/PhysRevC.101.015804
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2454. Data from this article have been entered in the XUNDL database. For more information, click here.

2020HA31      Phys.Rev. C 102, 045802 (2020)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

¹⁹Ne level structure for explosive nucleosynthesis

NUCLEAR REACTIONS ¹⁹F(³He, t)¹⁹Ne, E=30 MeV; measured reaction products, E(t), I(t), Eγ, Iγ, (triton)γ-, and (triton)γγ-coin using ORRUBA array with Micron QQQ5 telescopes for tritons and Gammasphere array for γ rays at ATLAS-ANL facility. ¹⁹Ne; deduced levels, J, π, γ-branching ratios. Comparison with earlier experimental results and with evaluated data. ¹⁸F(p, α)¹⁵O, E(cm)<0.9 MeV; calculated astrophysical S factors, and reaction rates at temperature of 0.06 to 0.4 GK.

doi: 10.1103/PhysRevC.102.045802
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2019GL02      Phys.Rev. C 99, 065801 (2019)

B.E.Glassman, D.Perez-Loureiro, C.Wrede, J.Allen, D.W.Bardayan, M.B.Bennett, K.A.Chipps, M.Febbraro, M.Friedman, C.Fry, M.R.Hall, O.Hall, S.N.Liddick, P.O'Malley, W.-J.Ong, S.D.Pain, S.B.Schwartz, P.Shidling, H.Sims, L.J.Sun, P.Thompson, H.Zhang

Doppler broadening in ²⁰Mg(βpγ)¹⁹Ne decay

RADIOACTIVITY ²⁰Mg(β⁺p)[²⁰Mg beam from ⁹Be(²⁴Mg, X), E=170 MeV/nucleon, followed by separation using A1900 separator at NSCL-MSU]; measured Eβ⁺, Eγ, Iγ, β⁺γ-coin, γ-decay branching ratios, and E(p) using plastic scintillator for β detection and the SeGA array for γ detection. ¹⁹Ne; deduced levels, J, π, half-life of 1507.5 level from Doppler broadening analysis, β⁺p feedings. Comparison with previous experimental values. Discussed relevance to ¹⁵O(α, γ)¹⁹Ne thermonuclear reaction rates.

NUCLEAR REACTIONS ⁹Be(²⁴Mg, X)¹⁵N/¹⁶O/¹⁷F/¹⁸Ne/²⁰Mg, E=170 MeV/nucleon; measured time of flight, particle identification plot, yields using A1900 fragment separator at the K500 and K1200 coupled cyclotrons of NSCL-MSU.

doi: 10.1103/PhysRevC.99.065801
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2019HA08      Phys.Rev.Lett. 122, 052701 (2019)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

Key ¹⁹Ne States Identified Affecting γ-Ray Emission from ¹⁸F in Novae

NUCLEAR REACTIONS ¹⁹F(³He, t)¹⁹Ne, E=30 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, J, π, S-factor, reaction rates, resonance energies. Comparison with available data.

doi: 10.1103/PhysRevLett.122.052701
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2019HA14      Phys.Rev. C 99, 035805 (2019)

M.R.Hall, D.W.Bardayan, T.Baugher, A.Lepailleur, S.D.Pain, A.Ratkiewicz, S.Ahn, J.M.Allen, J.T.Anderson, A.D.Ayangeakaa, J.C.Blackmon, S.Burcher, M.P.Carpenter, S.M.Cha, K.Y.Chae, K.A.Chipps, J.A.Cizewski, M.Febbraro, O.Hall, J.Hu, C.L.Jiang, K.L.Jones, E.J.Lee, P.D.O'Malley, S.Ota, B.C.Rasco, D.Santiago-Gonzalez, D.Seweryniak, H.Sims, K.Smith, W.P.Tan, P.Thompson, C.Thornsberry, R.L.Varner, D.Walter, G.L.Wilson, S.Zhu

New γ-ray transitions observed in ¹⁹Ne with implications for the ¹⁵O(α, γ)¹⁹Ne reaction rate

NUCLEAR REACTIONS ¹⁹F(³He, t), E=30 MeV; measured triton spectra, Eγ, Iγ, tγ- and γγ-coin using Gammasphere array for γ detection with the silicon detector array ORRUBA Dual Detectors for Experimental Structure Studies (GODDESS) at ATLAS-ANL facility. ¹⁹Ne; deduced levels, J, π, and γ-branching ratios for the decay of 4.14- and 4.20-MeV states. ¹⁵O(α, γ)¹⁹Ne, E≈18-180 keV; calculated fractional contribution of the corrected branching ratios for the 4.14 MeV, 7/2- and 4.20 MeV, 9/2- states in ¹⁹Ne to astrophysical reaction rate, which is of significance in breakout from the hot CNO cycle in type I x-ray bursts. Comparison with previous experimental values.

doi: 10.1103/PhysRevC.99.035805
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2018GL01      Phys.Lett. B 778, 397 (2018)

B.E.Glassman, D.Perez-Loureiro, C.Wrede, J.Allen, D.W.Bardayan, M.B.Bennett, B.A.Brown, K.A.Chipps, M.Febbraro, M.Friedman, C.Fry, M.R.Hall, O.Hall, S.N.Liddick, P.O'Malley, W.J.Ong, S.D.Pain, C.Prokop, S.B.Schwartz, P.Shidling, H.Sims, P.Thompson, H.Zhang

β-delayed γ decay of ²⁰Mg and the ₁₉Ne(p, γ)²⁰Na breakout reaction in Type I X-ray bursts

RADIOACTIVITY ²⁰Mg(β⁺) [from ⁹Be(²⁴Mg, X)²⁰Mg, E=170 MeV/nucleon]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced γ-ray energies and limits on intensities of β-delayed γ-rays, Gamow-Teller strengths B(GT) and associated log ft values. Comparison with theoretical calculations.

doi: 10.1016/j.physletb.2018.01.041
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Data from this article have been entered in the XUNDL database. For more information, click here.

2017WR02      Phys.Rev. C 96, 032801 (2017)

C.Wrede, B.E.Glassman, D.Perez-Loureiro, J.M.Allen, D.W.Bardayan, M.B.Bennett, B.A.Brown, K.A.Chipps, M.Febbraro, C.Fry, M.R.Hall, O.Hall, S.N.Liddick, P.O'Malley, W.-J.Ong, S.D.Pain, S.B.Schwartz, P.Shidling, H.Sims, P.Thompson, H.Zhang

New portal to the ¹⁵O(α, γ)¹⁹Ne resonance triggering CNO-cycle breakout

RADIOACTIVITY ²⁰Mg(β⁺), (β⁺p)[from ⁹Be(²⁴Mg, X), E=170 MeV/nucleon using A1900 separator at MSU-NSCL facility]; measured Eγ, Iγ, βγ- and (implants)γ-coin using SeGA array for γ detection. ¹⁹Ne; deduced level at 4034 keV, β⁺-delayed proton branching ratio; discussed possible α-decay of 4034 level. ²⁰Mg(β⁺α); discussed possible decay branch. Relevance to hot CNO cycles during type I x-ray bursts on accreting neutron stars.

doi: 10.1103/PhysRevC.96.032801
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Data from this article have been entered in the XUNDL database. For more information, click here.

2015GL03      Phys.Rev. C 92, 042501 (2015)

B.E.Glassman, D.Perez-Loureiro, C.Wrede, J.Allen, D.W.Bardayan, M.B.Bennett, B.A.Brown, K.A.Chipps, M.Febbraro, C.Fry, M.R.Hall, O.Hall, S.N.Liddick, P.O'Malley, W.Ong, S.D.Pain, S.B.Schwartz, P.Shidling, H.Sims, P.Thompson, H.Zhang

Revalidation of the isobaric multiplet mass equation for the A=20 quintet

RADIOACTIVITY ²⁰Mg(β⁺)[²⁰Mg beam from ⁹Be(²⁴Mg, X), E=170 MeV/nucleon using A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, βγ-coin using SeGA array. ²⁰Na; deduced levels, precise energy of the T=2 state, J, π. ²⁰Mg, ²⁰Na, ²⁰Ne, ²⁰F, ²⁰O; analyzed and revalidated isobaric multiplet mass equation (IMME) for A=20, T=2 quintet.

doi: 10.1103/PhysRevC.92.042501
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

1994BE52      Radiochim.Acta 64, 11 (1994)

L.F.Bellido, V.J.Robinson, H.E.Sims

Production of ²³⁵Np and ²³⁶Pu for Environmental Applications

NUCLEAR REACTIONS, ICPND ²³⁸U(p, n), (p, 3n), (p, 4n), E=13-56 MeV; measured σ(E); deduced ²³⁵Np, ²³⁶Pu production best route.

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0426.

1993BE64      Radiochim.Acta 62, 123 (1993)

L.F.Bellido, V.J.Robinson, H.E.Sims

Excitation Functions for the ^235,238U(d, xn)^237,240(-x)Np Reactions

NUCLEAR REACTIONS, ICPND ^235,238U(d, xn)²³⁵Np/²³⁶Np/^236mNp, E=20-32 MeV; measured production σ(E).

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1064.

1987SZ03      Radiochim.Acta 41, 5 (1987)

A.Szymanski, G.W.A.Newton, V.J.Robinson, H.E.Sims

Gamma Ray Abundances of Re and W Isotopes, Part V, A = 171

RADIOACTIVITY ¹⁷¹Re [from ¹⁶⁵Ho(¹⁶O, 10n), E=110-183 MeV]; ¹⁷¹W(β⁺), (EC) [from ¹⁶⁵Ho(¹⁴N, 8n), E=140.3 MeV]; measured γ-abundances, T_1/2. ¹⁷¹Ta deduced transitions, T_1/2. ¹⁷¹Hf deduced transitions.

NUCLEAR REACTIONS ¹⁶⁵Ho(¹⁶O, 10n), E=110-183 MeV; ¹⁶⁵Ho(¹⁴N, 8n), E=140.3 MeV; measured residuals γ-ray abundances. Helium jet recoil transportation system.

1986SZ05      Radiochim.Acta 40, 61 (1986)

A.Szymanski, G.W.A.Newton, V.J.Robinson, H.E.Sims

Absolute Gamma Ray Abundances of Rhenium and Tungsten Isotopes: Part III, A = 173

NUCLEAR REACTIONS ¹⁶⁵Ho(¹⁴N, 6n), E=117.4 MeV; ¹⁶⁵Ho(¹⁴N, 5np), E=118.2 MeV; ¹⁶⁵Ho(¹⁶O, 8n), E=151.2 MeV; measured Eγ, Iγ. ¹⁷³Ta, ¹⁷³W, ¹⁷³Re deduced T_1/2. ¹⁷³W, ¹⁷³Ta, ¹⁷³Hf deduced transitions, absolute γ abundances.

RADIOACTIVITY ¹⁷³Ta, ¹⁷³W(EC), (β⁺); ¹⁷³Re(EC) [from ¹⁶⁵Ho(¹⁴N, 6n), (¹⁴N, p5n), (¹⁶O, 8n)]; measured Eγ, Iγ, T_1/2. ¹⁷³W, ¹⁷³Ta, ¹⁷³Hf deduced transitions, absolute γ abundances.

1986SZ06      Radiochim.Acta 40, 67 (1986)

A.Szymanski, G.W.A.Newton, V.J.Robinson, H.E.Sims

Absolute Gamma Ray Abundances of Re and W Isotopes: Part IV, A = 172

NUCLEAR REACTIONS ¹⁶⁵Ho(¹⁴N, 7n), E=89-147 MeV; ¹⁶⁵Ho(¹⁶O, 9n), E=110-183 MeV; measured Eγ, Iγ, σ(Eγ, E). ¹⁷²W deduced T_1/2, γ transitions, abundances. ¹⁷²Re deduced T_1/2. ¹⁷²Ta deduced γ transitions, abundances. Ge(Li) detector, He-jet recoil system.

RADIOACTIVITY ¹⁷²W, ¹⁷²Re(β⁺), (EC) [from ¹⁶⁵Ho(¹⁴N, 7n), (¹⁶O, 9n)]; measured Eγ, Iγ, T_1/2. Ge(Li) detector, He-jet recoil system.

1985SZ03      Radiochim.Acta 38, 113 (1985)

A.Szymanski, G.W.A.Newton, V.J.Robinson, H.E.Sims

Absolute Gamma Ray Abundances of Re and W Isotopes: Part II, A = 174

RADIOACTIVITY ¹⁷⁴Re(β⁺), (EC) [from ¹⁶⁵Ho(¹⁶O, 7n)]; ¹⁷⁴W(EC) [from ¹⁶⁵Ho(¹⁴N, 5n)]; measured Eγ, Iγ. ¹⁷⁴W, ¹⁷⁴Re deduced absolute γ-abundances.

1984NE06      J.Radioanal.Nucl.Chem. 84, 149 (1984)

G.W.A.Newton, V.J.Robinson, E.M.Shaw, R.J.Smith, H.E.Sims

Single Neutron Transfer Reactions in the Systems: ¹³⁹La + ¹⁶O, ⁹³Nb + ¹²C, ¹⁴N, ¹⁶O and ²⁰Ne

NUCLEAR REACTIONS, ICPND ¹³⁹La(¹⁶O, ¹⁵O), E=105.8-153.1 MeV; ⁹³Nb(¹²C, ¹³C), E=88.7-171.2 MeV; ⁹³Nb(¹⁴N, ¹⁵N), E=89.4-145.6 MeV; ⁹³Nb(¹⁶O, ¹⁷O), E=117.3-183.6 MeV; ⁹³Nb(²⁰Ne, ²¹Ne), E=112.2-191.4 MeV; measured σ(E), residuals yields, isomer production σ; deduced reaction mechanism.

doi: 10.1007/BF02038191
Citations: PlumX Metrics

1984SZ07      Radiochim.Acta 37, 121 (1984)

A.Szymanski, G.W.A.Newton, V.J.Robinson, S.M.A.Hoffmann, H.E.Sims

Absolute Gamma Ray Abundances of Re and W Isotopes: Part I, A = 175

RADIOACTIVITY ¹⁷⁵W(EC), (β⁺) [from ¹⁶⁵Ho(¹⁴N, 4n)]; ¹⁷⁵Re(EC), (β⁺) [from ¹⁶⁵Ho(¹⁶O, 6n)]; measured Eγ, Iγ. ¹⁷⁵W, ¹⁷⁵Re deduced absolute γ-abundances.

Note: The following list of authors and aliases matches the search parameter H.Sims: , H.E.SIMS