Phys.Rev. C 105, 034308 (2022)

Madhu, K.Yadav, A.Y.Deo, Pragati, P.C.Srivastava, S.K.Tandel, S.G.Wahid, S.Kumar, S.Muralithar, R.P.Singh, I.Bala, S.S.Bhattacharjee, R.Garg, S.Chakraborty, S.Rai, A.K.Jain

Evolution of nuclear structure through isomerism in ²¹⁶Fr

NUCLEAR REACTIONS ²⁰⁸Pb(¹¹B, 3n), E=54-62 MeV; measured Eγ, Iγ, γ(θ), γγ-coin. ²¹⁶Fr; deduced high-spin isomers, J, π, T_1/2 of isomeric states, γ-ray branching ratios, B(E1), B(M2), single-particle transition rates, configurations. Half-lives extracted using centroid-shift and decay-curve analyses. Systematics of the 11⁺ isomers properties in the ²¹⁶Fr, ²¹²At, ²¹⁸Ac. Comparison to the shell-model calculations. Beam from 15 UD Pelletron accelerator at Inter-University Accelerator Centre (IUAC). Detector system - Indian National Gamma Array (INGA) with 14 Compton suppressed clover HPGe.

doi: 10.1103/PhysRevC.105.034308