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NSR database version of April 27, 2024.

Search: Author = J.Dissanayake

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2020GA12      Phys.Rev. C 101, 055805 (2020)

P.Gastis, G.Perdikakis, J.Dissanayake, P.Tsintari, I.Sultana, C.R.Brune, T.N.Massey, Z.Meisel, A.V.Voinov, K.Brandenburg, T.Danley, R.Giri, Y.Jones-Alberty, S.Paneru, D.Soltesz, S.Subedi

Constraining the destruction rate of ⁴⁰K in stellar nucleosynthesis through the study of the ⁴⁰Ar(p, n)⁴⁰K reaction

NUCLEAR REACTIONS ⁴⁰Ar(p, n)⁴⁰K, E(cm)=3.3-3.9 MeV; measured In, Eγ, Iγ, and differential σ(θ, E) using neutron time-of-flight technique with plastic scintillators for neutron detection and LaBr₃ scintillator for γ detection at the Edwards Accelerator Laboratory of Ohio University; deduced total σ(E), and partial σ(E) populating discrete states. ⁴⁰K(n, p), E(cm)=3.3-3.9 MeV; deduced thermonuclear reaction rates for the forward and reverse reactions. Comparison with Hauser-Feshbach calculations using the statistical model code TALYS, and with theoretical rates in the REACLIB library. Relevance to yield of ⁴⁰K in nucleosynthesis, and impact on galactic chemical evolution models for the study of properties of exoplanets.

doi: 10.1103/PhysRevC.101.055805
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2570.

2019SA36      Phys.Rev. C 100, 014308 (2019)

R.Sandler, G.Bollen, J.Dissanayake, M.Eibach, K.Gulyuz, A.Hamaker, C.Izzo, X.Mougeot, D.Puentes, F.G.A.Quarati, M.Redshaw, R.Ringle, I.Yandow

Direct determination of the ¹³⁸La β-decay Q value using Penning trap mass spectrometry

ATOMIC MASSES ¹³⁸La, ¹³⁸Ce, ¹³⁸Ba, ¹³⁶Xe; measured cyclotron frequency ratios, time-of-flight ion cyclotron resonance for ¹³⁸La using Penning trap mass spectrometry at LEBIT-NSCL-MSU facility; deduced atomic mass excesses. Comparison with AME-2016 evaluation.

RADIOACTIVITY ¹³⁸La(β^-), (EC); ¹³⁸Ce(2EC); deduced Q values; calculated ¹³⁸La β-decay curve, experimental shape factor, ¹³⁸La ϵ decay probability ratios for K, L, and M shells. Comparison with previous measurements.

doi: 10.1103/PhysRevC.100.014308
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