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NSR database version of April 27, 2024.

Search: Author = G.Seymour

Found 9 matches.

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2022BO17      Phys.Rev. C 106, 045801 (2022)

A.Boeltzig, R.J.deBoer, Y.Chen, A.Best, M.Couder, A.Di Leva, B.Frentz, J.Gorres, Gy.Gyurky, G.Imbriani, M.Junker, Q.Liu, S.Lyons, K.Manukyan, K.T.Macon, L.Morales, M.T.Moran, D.Odell, C.Seymour, G.Seymour, E.Stech, B.Vande Kolk, M.Wiescher

Investigation of direct capture in the ²³Na(p, γ)²⁴Mg reaction

NUCLEAR REACTIONS ²³Na(p, γ), E=0.5-1 MeV; measured Eγ, Iγ; deduced σ(E) for 8 γ-transitions, resonance energies and partial widths, asymptotic normalisation coefficients (ANC), S-factor, reaction rate. R-matrix analysis with AZURE2 code. Comparison to other experimental data and theoretical calculations. HPGe detector at Stable ion Accelerator for Nuclear Astrophysics (University of Notre Dame).

doi: 10.1103/PhysRevC.106.045801
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022VA04      Phys.Rev. C 105, 055802 (2022)

B.Vande Kolk, K.T.Macon, R.J.deBoer, T.Anderson, A.Boeltzig, K.Brandenburg, C.R.Brune, Y.Chen, A.M.Clark, T.Danley, B.Frentz, R.Giri, J.Gorres, M.Hall, S.L.Henderson, E.Holmbeck, K.B.Howard, D.Jacobs, J.Lai, Q.Liu, J.Long, K.Manukyan, T.Massey, M.Moran, L.Morales, D.Odell, P.O'Malley, S.N.Paneru, A.Richard, D.Schneider, M.Skulski, N.Sensharma, C.Seymour, G.Seymour, D.Soltesz, S.Strauss, A.Voinov, L.Wustrich, M.Wiescher

Investigation of the ¹⁰B (p, α)⁷Be reaction from 0.8 to 2.0 MeV

NUCLEAR REACTIONS ¹⁰B(p, α), (p, p), E=0.8-2.0 MeV; measured Eα, Iα, Ep, Ip; deduced σ(θ), σ(E) S-factor, resonance parameters of ¹⁰B+p system - energy, spin, partial (p₀, α₀, α₁) and total width. ¹⁰B(p, γ), E=0 .1-2.0 MeV; deduced σ(θ). ¹¹C; deduced levels, J, π. R-matrix analysis. Measurements were made at the University of Notre Dame (UND) Nuclear Science Laboratory (NSL) using a degrader foil method, while those at the Edwards AcceleratorLaboratory at Ohio University (OU) were performed using the time-of-flight (ToF)technique. Comparison with other experimental data.

doi: 10.1103/PhysRevC.105.055802
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2767. Data from this article have been entered in the XUNDL database. For more information, click here.

2021DE17      Phys.Rev. C 103, 065801 (2021)

R.J.deBoer, A.Boeltzig, K.T.Macon, S.Aguilar, O.Gomez, B.Frentz, S.L.Henderson, R.Kelmar, M.Renaud, G.Seymour, B.Vande Kolk, M.Wiescher, C.R.Brune, S.P.Burcher, K.L.Jones, J.M.Kovoor, M.Febbraro, G.Imbriani, S.Mosby, K.Smith, R.Toomey

Investigation of secondary γ-ray angular distributions using the ¹⁵N(p, α₁γ)¹²C^* reaction

NUCLEAR REACTIONS ¹⁵N(p, αγ)¹²C^*, E=0.88-4.0 MeV; measured Eγ, Iγ, angular distributions using Hybrid Array of LaBr₃(Ce) Gamma Ray Detectors (HAGRiD) at the 5-MV Santa Ana accelerator of University of Notre Dame; deduced σ(E), σ(θ) distributions. ¹⁵N(p, αγ)¹²C^*; ¹²C(α, α), (α, α'); analyzed present and previous experimental data for σ(θ) distributions by R-matrix formalism using AZURE2 code. Discussed inconsistencies and difficulty in fitting previous data. Detailed cross section data for both the reactions listed in the Supplemental Material.

doi: 10.1103/PhysRevC.103.065801
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2642.

2020FE06      Phys.Rev.Lett. 125, 062501 (2020)

M.Febbraro, R.J.deBoer, S.D.Pain, R.Toomey, F.D.Becchetti, A.Boeltzig, Y.Chen, K.A.Chipps, M.Couder, K.L.Jones, E.Lamere, Q.Liu, S.Lyons, K.T.Macon, L.Morales, W.A.Peters, D.Robertson, B.C.Rasco, K.Smith, C.Seymour, G.Seymour, M.S.Smith, E.Stech, B.Vande Kolk, M.Wiescher

New ¹³C(α, n)¹⁶O Cross Section with Implications for Neutrino Mixing and Geoneutrino Measurements

NUCLEAR REACTIONS ¹³C(α, n), E=5.2-6.4 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with experimental data, JENDL and ENDF/B evaluated libraries.

doi: 10.1103/PhysRevLett.125.062501
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2579.

2020LI08      Phys.Rev. C 101, 025808 (2020)

Q.Liu, M.Febbraro, R.J.deBoer, S.Aguilar, A.Boeltzig, Y.Chen, M.Couder, J.Gorres, E.Lamere, S.Lyons, K.T.Macon, K.Manukyan, L.Morales, S.Pain, W.A.Peters, C.Seymour, G.Seymour, R.Toomey, B.Vande Kolk, J.Weaver, M.Wiescher

Low-energy cross-section measurement of the ¹⁰B(α, n)¹³N reaction and its impact on neutron production in first-generation stars

NUCLEAR REACTIONS ¹⁰B(α, n)¹³N, E=575-2522 keV; measured E(n), I(n), n(θ), σ(E, θ), differential S factors using deuterated liquid scintillator detector for neutrons at the University of Notre Dame Nuclear Science Laboratory. ¹⁰B(α, pγ)¹³C, E=835-1665 keV; measured Eγ and Iγ. ¹⁴N; deduced levels, resonances, J, π, Γ_α, Γ_n, Γ_p, Γ_d, and Γ from R-matrix analysis, and compared with earlier experimental results. ¹⁰B(α, n), (α, p), (α, d), (α, α), E(cm)=0.4-1.2 MeV; analyzed present and previous experimental data for differential σ(E) by R-matrix fit. ¹⁰B(α, n)¹³N, T=0.1-10 GK; deduced astrophysical reaction rates, and compared to literature data.

doi: 10.1103/PhysRevC.101.025808
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2511. Data from this article have been entered in the XUNDL database. For more information, click here.

2020PA40      Phys.Rev. C 102, 045502 (2020)

H.I.Park, J.C.Hardy, M.Bencomo, V.E.Iacob, I.S.Towner, K.T.Macon, W.P.Tan, M.Brodeur, A.Boeltzig, B.Frentz, S.L.Henderson, J.Long, S.McGuinness, O.Olivas-Gomez, P.O'Malley, G.Seymour, B.Vande Kolk, A.Kayani

Intensity of a weak 519-keV γ ray following β decay of the superallowed emitter ³⁴Ar determined via the ³³S(p, γ)³⁴Cl reaction

NUCLEAR REACTIONS ³³S(p, γ)³⁴Cl, E=1072 keV; measured Eγ, Iγ, and γγ-coin using GEORGINA array of five Ge detectors at the Pelletron accelerator of University of Notre Dame. ³⁴Cl; deduced γ-branching ratios from the 666-keV level, in particular for the 519-keV γ ray following β⁺ decay of the superallowed emitter ³⁴Ar. Comparison of the branching ratios with previous experimental results, and theoretical calculations.

doi: 10.1103/PhysRevC.102.045502
Citations: PlumX Metrics
Data from this article have been entered in the XUNDL database. For more information, click here.

2020TA08      Phys.Rev.Lett. 124, 192702 (2020)

W.P.Tan, A.Boeltzig, C.Dulal, R.J.deBoer, B.Frentz, S.Henderson, K.B.Howard, R.Kelmar, J.J.Kolata, J.Long, K.T.Macon, S.Moylan, G.F.Peaslee, M.Renaud, C.Seymour, G.Seymour, B.Vande Kolk, M.Wiescher, E.F.Aguilera, P.Amador-Valenzuela, D.Lizcano, E.Martinez-Quiroz

New Measurement of ¹²C+¹²C Fusion Reaction at Astrophysical Energies

NUCLEAR REACTIONS ¹²C(¹²C, X), E(cm)=2.2-5.0 MeV; measured reaction products, Eγ, Iγ; deduced σ, S-factor. Comparison with available data.

doi: 10.1103/PhysRevLett.124.192702
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2574.

2019LA15      Phys.Rev. C 100, 034614 (2019)

E.Lamere, M.Couder, M.Beard, A.Simon, A.Simonetti, M.Skulski, G.Seymour, P.Huestis, K.Manukyan, Z.Meisel, L.Morales, M.Moran, S.Moylan, C.Seymour, E.Stech

Proton-induced reactions on molybdenum

NUCLEAR REACTIONS ⁹²Mo(p, α)⁸⁹Nb/^89mNb, (p, np)⁹¹Mo/^91mMo, (p, 2p)^91mNb, (p, n)⁹²Tc, (p, γ)⁹³Tc/^93mTc, E=10.52, 13.03, 15.07, 16.07, 17.05, 18.07 MeV; ⁹⁴Mo(p, α)^91mNb, (p, np)^93mMo, (p, 2n)⁹³Tc/^93mTc, (p, n)⁹⁴Tc/^94mTc, E=9.04, 10.06, 11.05, 12.05, 13.04, 14.04, 15.04, 16.06, 17.06, 18.05, 19.06 MeV; ⁹⁵Mo(p, nα)^91mNb, (p, α)^92mNb, (p, 2n)⁹⁴Tc/^94mTc, (p, n)^95mTc/^95mTc, E=10.57, 12.01, 13.02, 4.03, 15.07, 16.03, 17.99, 19.03 MeV; ⁹⁶Mo(p, nα)^92mNb, (p, 2n)⁹⁵Tc/^95mTc, (p, n)⁹⁶Tc/^96mTc, E=8.04, 10.06, 11.07, 11.55, 12.07, 12.55, 13.06, 14.05, 15.05, 16.05, 17.05, 18.05, 19.06 MeV; ⁹⁷Mo(p, 2n)⁹⁶Tc/^96mTc, (p, n)^97mTc, E=9.01, 10.05, 10.98, 11.98, 13.02, 14.02, 15.04 MeV; ⁹⁸Mo(p, α)⁹⁵Nb/^95mNb, (p, 2n)^97mTc, (p, γ)^99mTc, E=10.06, 11.06, 12.05, 13.06, 14.05, 15.05, 16.06, 17.06, 18.02, 19.05 MeV; ¹⁰⁰Mo(p, nα)⁹⁶Nb, (p, α)⁹⁷Nb/^97mNb, (p, np)⁹⁹Mo, (p, 2n)^99mTc, (p, γ)¹⁰¹Tc, E=8.01, 9.01, 10.07, 11.01, 12.02, 13.03, 14.03, 15.07, 16.04, 17.03, 18.07, 19.07 MeV; measured Eγ, Iγ, σ(E) by γ-activation method. Comparison with HF calculations using TALYS-1.8 code, and with previous experimental results. Measurement made at the Nuclear Science Laboratory at the University of Notre Dame.

doi: 10.1103/PhysRevC.100.034614
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2413.

2019LI42      Phys.Rev. C 100, 034601 (2019)

Q.Liu, M.Febbraro, R.J.deBoer, A.Boeltzig, Y.Chen, C.Cerjan, M.Couder, B.Frentz, J.Gorres, E.A.Henry, E.Lamere, K.T.Macon, K.V.Manukyan, L.Morales, P.D.O'Malley, S.D.Pain, W.A.Peters, D.Schneider, C.Seymour, G.Seymour, E.Temanson, R.Toomey, B.Vande Kolk, J.Weaver, M.Wiescher

Measurement of the ¹⁰Ba (α, n₀) ¹³N cross section for 2.2 < E_α < 4.9 MeV and its application as a diagnostic at the National Ignition Facility

NUCLEAR REACTIONS ¹⁰B(α, n), (α, n₀)¹³N, E=2.2-4.9 MeV; measured E_n, I_n using five deuterated liquid scintillation detectors at the University of Notre Dame Nuclear Science Laboratory; deduced differential σ(E), angular distribution coefficients, thick target yields. Comparison with previous experimental data. Preliminary calculations performed to test feasibility of this reaction as a diagnostic tool for the National Ignition Facility (NIF) implosion. ¹⁰B(α, p)¹³C, E=2.2-4.9 MeV; measured secondary Eγ, γ-ray yields, used for troubleshooting during the experiment.

doi: 10.1103/PhysRevC.100.034601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2408.