Phys.Rev. C 104, 034310 (2021)

H.Kleis, M.Seidlitz, A.Blazhev, L.Kaya, P.Reiter, K.Arnswald, A.Dewald, M.Droste, C.Fransen, O.Moller, N.Shimizu, Y.Tsunoda, Y.Utsuno, P.von Brentano, K.O.Zell

Lifetime measurements of excited states in ⁵⁵Cr

NUCLEAR REACTIONS ⁴⁸Ca(¹¹B, 3np)⁵⁵Cr, E=32 MeV; measured Eγ, Iγ, level T_1/2 by recoil-distance Doppler shift (RDDS) method using Cologne plunger device surrounded by a cluster of seven HPGe crystals and five single HPGe detectors. ⁵⁵Cr; deduced levels, J, π, B(M1), B(E2). Comparison with shell-model calculations, with previous results for level half-lives, and systematics of N=31 isotones.

NUCLEAR STRUCTURE ⁵³Ti, ⁵⁵Cr, ⁵⁷Fe, ⁵⁹Ni, ⁶¹Zn; calculated levels, J, π, B(M1), B(E2), dominant neutron configurations for N=31 isotones using shell model, KB3G, FPD6, GXPF1A, and GXPF1Br interactions, and KSHELL, NUSHELLX@MSU computer codes. Comparison with experimental values.

doi: 10.1103/PhysRevC.104.034310