Phys.Lett. B 841, 137933 (2023)

S.Hellgartner, D.Mucher, K.Wimmer, V.Bildstein, J.L.Egido, R.Gernhauser, R.Krucken, A.K.Nowak, M.Zielinska, C.Bauer, M.L.L.Benito, S.Bottoni, H.DeWitte, J.Elseviers, D.Fedorov, F.Flavigny, A.Illana, M.Klintefjord, T.Kroll, R.Lutter, B.Marsh, R.Orlandi, J.Pakarinen, R.Raabe, E.Rapisarda, S.Reichert, P.Reiter, M.Scheck, M.Seidlitz, B.Siebeck, E.Siesling, T.Steinbach, T.Stora, M.Vermeulen, D.Voulot, N.Warr, F.J.C.Wenander

Axial and triaxial degrees of freedom in ⁷²Zn

NUCLEAR REACTIONS ¹⁰⁹Ag(⁷²Zn, ⁷²Zn'), E=2.85 MeV/nucleon, [secondary ⁷²Zn beam from U(p, F), E=1.4 GeV primary beam using UC_x target, resonant ionization laser ion Source, and High Resolution mass Separator at the REX-ISOLDE-CERN facility]; measured particle spectra using C-REX array of two annular double-sided silicon strip detectors (DSSSD), Doppler-corrected Eγ, Iγ, (particle)γ-coin, σ(θ, E(level)) using Miniball array of eight six-fold segmented HPGe triple cluster detectors for γ radiation. ⁷²Zn; deduced levels, Jπ, E2 matrix elements, B(E2), spectroscopic quadrupole moments for the first two 2+ states, first excited 0+ and first 4+ states using GOSIA-GOSIA2 analysis in multiple safe Coulomb excitation; calculated potential energy surface (PES) in (β, γ) planes for the g.s., first excited 0+ and 2+ states, and the 2+ state of the γ band in the PNAMP approach. Comparison to shell-model calculations using jj44c and JUN45 effective interactions, and to mean-field generator coordinate method (GCM) calculations. Systematics and theoretical predictions of B(E2) values for ^{62,64,66,68,70,72,74,76,78,80}Zn for the first 2+ and 4+ states.

doi: 10.1016/j.physletb.2023.137933