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NSR database version of April 26, 2024.

Search: Author = O.Olivas-Gomez

Found 9 matches.

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2024KE01      Phys.Rev. C 109, 035805 (2024)

R.Kelmar, J.P.McDonaugh, A.Simon, J.O'Reilly, A.C.Dombos, A.Gula, J.Koros, M.Matney, O.Olivas-Gomez, D.Robertson, E.Stech

Filtering contaminants from a γ-sum spectrum: Measurement of the ⁹⁴Mo(p, γ)⁹⁵Tc cross section

doi: 10.1103/PhysRevC.109.035805
Citations: PlumX Metrics

2023TS04      Phys.Rev. C 107, 035808 (2023)

A.Tsantiri, A.Palmisano-Kyle, A.Spyrou, P.Mohr, H.C.Berg, P.A.DeYoung, A.C.Dombos, P.Gastis, E.C.Good, C.M.Harris, S.N.Liddick, S.M.Lyons, O.Olivas-Gomez, G.Owens-Fryar, J.Pereira, A.L.Richard, A.Simon, M.K.Smith, R.G.T.Zegers

Cross-section measurement of the ⁸²Kr(p, γ)⁸³Rb reaction in inverse kinematics

NUCLEAR REACTIONS ¹H(⁸²Kr, γ)⁸³Rb, E=3.1, 3.4, 3.7 MeV/nucleon; measured Eγ, Iγ, γ-sum, total absorption spectra; deduced σ(E), astrophysical S-factor. Comparison to NON-SMOKER and TALYS statistical model calculations. Hydrogen gas cell surrounded by the Summing NaI(Tl) (SuN) detector at ReA reaccelerator facility (NSCL).

doi: 10.1103/PhysRevC.107.035808
Citations: PlumX Metrics

2022DO02      Phys.Rev.Lett. 128, 162701 (2022)

A.C.Dombos, D.Robertson, A.Simon, T.Kadlecek, M.Hanhardt, J.Gorres, M.Couder, R.Kelmar, O.Olivas-Gomez, E.Stech, F.Strieder, M.Wiescher

Measurement of Low-Energy Resonance Strengths in the ¹⁸O(α, γ)²²Ne Reaction

NUCLEAR REACTIONS ¹⁸O(α, γ), E=495.4 keV; measured reaction products, Eγ, Iγ; deduced resonance parameters, astrophysical reaction rates. The Sanford Underground Research Facility.

doi: 10.1103/PhysRevLett.128.162701
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2764. Data from this article have been entered in the XUNDL database. For more information, click here.

2022OL01      Eur.Phys.J. A 58, 57 (2022)

O.Olivas-Gomez, A.Simon, D.Robertson, A.C.Dombos, F.Strieder, T.Kadlecek, M.Hanhardt, R.Kelmar, M.Couder, J.Gorres, E.Stech, M.Wiescher

Commissioning of the 4^πγ-summing array HECTOR at CASPAR: measurements of ²⁷Al(p, γ)²⁸Si resonances 4850 feet underground

NUCLEAR REACTIONS ²⁷Al(p, γ), E=0.2-1 MeV; measured reaction products, Eγ, Iγ; deduced γ-ray energies, resonances, resonance strengths. Comparison with NACRE compilation. The High EffiCiency TOtal absorption spectrometeR (HECTOR).

doi: 10.1140/epja/s10050-022-00711-z
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Data from this article have been entered in the XUNDL database. For more information, click here.

2022PA20      Phys.Rev. C 105, 065804 (2022)

A.Palmisano-Kyle, A.Spyrou, P.A.DeYoung, A.Dombos, P.Gastis, O.Olivas-Gomez, C.Harris, S.Liddick, S.M.Lyons, J.Pereira, A.L.Richard, A.Simon, M.K.Smith, A.Tsantiri, R.Zegers

Constraining the astrophysical p process: Cross section measurement of the ⁸⁴Kr(p, γ)⁸⁵Rb reaction in inverse kinematics

NUCLEAR REACTIONS ¹H(⁸⁴Kr, γ), E=2.8, 3.1, 3.4, 3.7 MeV/nucleon; measured Eγ, Ιγ, total absorption; deduced σ(E). Discussed the astrophysical impact, in particular on the ^78Kr p-nuclei path. Comparison to NON-SMOKER and TALYS calculations and previous experimental data. Summing NaI(Tl) (SuN) detector and hydrogen-filled gas-cell target at Michigan State University ReAccelerator (ReA) facility (NSCL).

doi: 10.1103/PhysRevC.105.065804
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2773.

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.

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

2019RE04      Eur.Phys.J. A 55, 77 (2019)

C.S.Reingold, O.Olivas-Gomez, A.Simon, J.Arroyo, M.Chamberlain, J.Wurzer, A.Spyrou, F.Naqvi, A.C.Dombos, A.Palmisano, T.Anderson, A.M.Clark, B.Frentz, M.R.Hall, S.L.Henderson, S.Moylan, D.Robertson, M.Skulski, E.Stech, S.Y.Strauss, W.P.Tan, B.Vande Kolk

High Efficiency Total Absorption Spectrometer HECTOR for capture reaction measurements

RADIOACTIVITY ⁶⁰Co(IT); measured Eγ, Iγ using Total Absorption Spectrometer HECTOR; deduced sum spectrum; compared with GEANT4 simulated spectrum.

NUCLEAR REACTIONS ²⁷Al(p, γ), E not given; measured Eγ, Iγ; deduced resonances, average multiplicities, summing efficiencies and resonance strengths; compared with GEANT4 simulations and with published data. Remark: Paper aimed mainly to show the possibilities of the HECTOR spectrometer.

doi: 10.1140/epja/i2019-12748-8
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Data from this article have been entered in the XUNDL database. For more information, click here.