Phys.Rev. C 104, 065803 (2021)

S.F.Paul, J.Bergmann, J.D.Cardona, K.A.Dietrich, E.Dunling, Z.Hockenbery, C.Hornung, C.Izzo, A.Jacobs, A.Javaji, B.Kootte, Y.Lan, E.Leistenschneider, E.M.Lykiardopoulou, I.Mukul, T.Murbock, W.S.Porter, R.Silwal, M.B.Smith, J.Ringuette, T.Brunner, T.Dickel, I.Dillmann, G.Gwinner, M.MacCormick, M.P.Reiter, H.Schatz, N.A.Smirnova, J.Dilling, A.A.Kwiatkowski

Mass measurements of ^60-63Ga reduce x-ray burst model uncertainties and extend the evaluated T=1 isobaric multiplet mass equation

ATOMIC MASSES ^60,61,62,63Ga; measured mass spectra using the TITAN multiple-reflection time-of-flight (MR-TOF) mass spectrometer at TRIUMF-ISAC facility; deduced mass excesses and S(p), and compared with previous experimental results and AME2020 evaluation, and theoretical calculations for S(p). Discussed isobaric multiplet mass equation (IMME) for A=60, and systematic trend for A=42-62 even-A nuclei. Relevance of ^60,61Ga mass measurements for the rp process in x-ray bursts, and for ⁶⁰Zn waiting point nucleus. ^60,61,62,63Ga isotopes produced in Zr(p, X), E=480 MeV, and selectively ionized by TRIUMF's Resonant Laser Ion Source (TRILIS).

doi: 10.1103/PhysRevC.104.065803