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NSR database version of April 26, 2024.

Search: Author = O.M.Drozdowski

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2017BR14      Phys.Rev. C 96, 034316 (2017)

M.Brodeur, A.A.Kwiatkowski, O.M.Drozdowski, C.Andreoiu, D.Burdette, A.Chaudhuri, U.Chowdhury, A.T.Gallant, A.Grossheim, G.Gwinner, H.Heggen, J.D.Holt, R.Klawitter, J.Lassen, K.G.Leach, A.Lennarz, C.Nicoloff, S.Raeder, B.E.Schultz, S.R.Stroberg, A.Teigelhofer, R.Thompson, M.Wieser, J.Dilling

Precision mass measurements of magnesium isotopes and implications for the validity of the isobaric mass multiplet equation

ATOMIC MASSES ^27,28,29Mg; measured cyclotron frequencies, mass excesses using TITAN Penning trap at ISAC-TRIUMF facility; deduced S(p). Comparison with AME-2016 evaluated data, and with ab initio calculations from the valence-space in-medium similarity renormalization group. ^27,28,29Mg produced in SiC(p, X), E=480 MeV reaction, followed by laser resonance ionization in a radio-frequency ion guide (IG-LIS).²⁹Mg, ²⁹Cl, ³⁰Mg, ³⁰Ar; analyzed isobaric mass multiplet equation (IMME) in the form of a cubic term. ²⁸S, ²⁹Cl; need to confirm mass excess of ²⁸S and S(n) of ²⁹Cl.

doi: 10.1103/PhysRevC.96.034316
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2017RE10      Phys.Rev. C 96, 052501 (2017)

M.P.Reiter, K.G.Leach, O.M.Drozdowski, S.R.Stroberg, J.D.Holt, C.Andreoiu, C.Babcock, B.Barquest, M.Brodeur, A.Finlay, M.Foster, A.T.Gallant, G.Gwinner, R.Klawitter, B.Kootte, A.A.Kwiatkowski, Y.Lan, D.Lascar, E.Leistenschneider, A.Lennarz, S.Paul, R.Steinbrugge, R.I.Thompson, M.Wieser, J.Dilling

High-precision Q_EC-value measurement of the superallowed β⁺ emitter ²²Mg and an ab initio evaluation of the A=22 isobaric triplet

ATOMIC MASSES ²²Mg; measured time-of-flight quadrupole-excitation and Ramsey-excitation resonance spectra using Ion Trap for Atomic and Nuclear Science (TITAN) at TRIUMF; deduced average frequency ratios for the mass measurements. ²²Mg, ²²Na; deduced mass excesses and Q value for ϵ decay of ²²Mg decay to ²²Na. Comparison with AME-2016 and Hardy-Towner evaluations. ²²Mg, ²²Ne, ²²Na; deduced new coefficients of the IMME by using state-of-the-art ab initio shell-model calculations of the IAS energies. Relevance to isospin-symmetry-breaking (ISB) correction in superallowed β decays.

doi: 10.1103/PhysRevC.96.052501
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