Phys.Rev. C 105, 014322 (2022)

A.Mukherjee, S.Bhattacharya, T.Trivedi, R.P.Singh, S.Muralithar, D.Negi, R.Palit, S.Nag, S.Rajbanshi, M.Kumar Raju, S.Kumar, D.Choudhury, R.Kumar, R.K.Bhowmik, S.C.Pancholi, A.K.Jain

Shape coexistence and octupole correlations in ⁷²Se

NUCLEAR REACTIONS ⁵⁰Cr(²⁸Si, 2pα)⁷²Se, E=90 MeV; measured Eγ, Iγ, γγ-coin, γγ(θ)(DCO), γγ(θ)(ADO), γγ-linear polarization asymmetries using INGA array of 17 Compton-suppressed clover detectors at the 15UD Pelletron accelerator of IUAC, New Delhi. ⁷²Se; deduced high-spin levels, J, π, multipolarities, multipole mixing ratios, Kπ=0+ bands, γ-band, alignments, B(E1)/B(E2) ratios, octupole correlations, intrinsic dipole moment D₀ for the octupole band; calculated single-particle energy as a function of β₂ for fixed triaxiality and hexadecapole deformation parameters, single-particle proton and neutron energy levels; bands interpreted in terms of the total Routhian surface (TRS) calculations. Systematics of B(E1)/B(E2) ratios and D₀ values for ⁷²Se, ⁷³Br, ^114,116,117Xe, ¹²⁵Ba, and for energies of 3- states for ^{70,72,74,76,78,80,82}Se.

doi: 10.1103/PhysRevC.105.014322