Phys.Rev. C 105, 014323 (2022)

J.A.Briz, M.J.G.Borge, B.Rubio, J.Agramunt, A.Algora, A.Y.Deo, M.E.Estevez Aguado, G.Farrelly, L.M.Fraile, W.Gelletly, A.Maira, E.Nacher, A.Perea, Zs.Podolyak, A.Poves, P.Sarriguren, O.Tengblad

Clarifying the structure of low-lying states in ⁷²Br

RADIOACTIVITY ⁷²Kr(EC), (β⁺)[from Nb(p, X), E=1.4 GeV at ISOLDE-CERN, followed by high-resolution mass separation]; measured Eγ, Iγ, x rays, conversion electrons, conversion coefficients using HPGe detector for γ rays and a miniorange electron spectrometer for electrons. ⁷²Br; deduced levels, J, π, multipolarities, multipole mixing ratios, configurations, no E0 transitions observed. ⁷²Br(EC)[from ⁷²Kr EC decay]; ⁷²As(EC)[present as contaminant]; measured Eγ, Iγ, conversion electrons. ⁷²Se, ⁷²Ge; deduced Eγ and E0 transitions. Comparison of level structure in ⁷²Br with theoretical calculations using the mean-field HF+BCS approach with SLy4 Skyrme-type interaction and large-scale shell-model using jun45.lnps interaction, and with previous experimental results.

doi: 10.1103/PhysRevC.105.014323