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NSR database version of April 27, 2024.

Search: Author = E.Churchman

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2020KE01      Phys.Rev. C 101, 015801 (2020), Erratum Phys.Rev. C 96, 019901 (2017)

R.Kelmar, A.Simon, O.Olivas-Gomez, P.Millican, C.S.Reingold, E.Churchman, A.M.Clark, S.L.Henderson, S.E.Kelly, D.Robertson, E.Stech, W.P.Tan

Searching for (γ, α)/(γ, n) branching points in the γ-process path near A+100

NUCLEAR REACTIONS ⁹⁰Zr, ¹⁰²Pd, ^108,110Cd(α, γ), E(cm)=7.5-11.6 MeV; measured Eγ, Iγ, σ(E) using High Efficiency total absorption spectrometer (HECTOR) composed of 16 NaI(Tl) detectors at the University of Notre Dame Nuclear Science Laboratory. Comparison with data in NONSMOKER database, and with calculations using TALYS 1.9 code. ⁹⁰Zr, ¹⁰²Pd, ^108,110Cd(α, γ), T₉=0.3-10; deduced astrophysical reaction rates using the TALYS 1.9 code with the back-shifted Fermi gas LD model, the αOMP, and the Brink-Axel Lorentzian γSF.

doi: 10.1103/PhysRevC.101.015801
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2453.

2020OL07      Phys.Rev. C 102, 055806 (2020)

O.Olivas-Gomez, A.Simon, O.Gorton, J.E.Escher, E.Churchman, P.Millican, R.Kelmar, C.S.Reingold, A.M.Clark, N.Cooper, C.Harris, S.L.Henderson, S.E.Kelly, F.Naqvi, A.Palmisano, D.Robertson, E.Stech, A.Spyrou, W.P.Tan

Measurements of proton capture in the A = 100-100 mass region: Constraints on the ¹¹¹In(γ, p)/(γ, n) branching point relevant to the γ process

NUCLEAR REACTIONS ¹⁰²Pd(p, γ)¹⁰³Ag, E=4-8 MeV; ¹⁰⁸Cd(p, γ)¹⁰⁹In, E=3.5=7 MeV; ¹¹⁰Cd(p, γ)¹¹¹In, E=3-6 MeV; measured Eγ, Iγ, summed γ spectra using a high efficiency total absorption spectrometer and γ-summing technique at the 10-MV FN Tandem Van de Graaff accelerator of the University of Notre Dame; deduced capture σ(E) for the ground states, total σ(E), constrain Hauser-Feshbach parameters used in TALYS 1.9. Comparison with theoretical predictions from the NON-SMOKER code, and with Hauser-Feshbach statistical calculations. Recommended (γ, p) and (γ, n) stellar photodissociation decay rates for ¹⁰³Ag, ¹⁰⁹In and ¹¹¹In for T=1-10 GK. Relevance to γ process is an explosive astrophysical scenario.

doi: 10.1103/PhysRevC.102.055806
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2602.