Phys.Rev. C 106, 014602 (2022)

A.Bronis, F.P.Hessberger, S.Antalic, B.Andel, D.Ackermann, S.Heinz, S.Hofmann, J.Khuyagbaatar, B.Kindler, I.Kojouharov, P.Kuusiniemi, M.Leino, B.Lommel, R.Mann, K.Nishio, A.G.Popeko, B.Streicher, B.Sulignano, J.Uusitalo, M.Venhart, A.V.Yeremin

Decay studies of new isomeric states in ²⁵⁵No

RADIOACTIVITY ²⁵⁰Fm, ^252,254,255No(α)[from ²⁰⁸Pb(⁴⁸Ca, X), E=213.6, 218.4 MeV]; measured Eα. ^255mNo(IT); measured Eγ, γ(ce)-coin, γ(ER)-coin; deduced levels, three micro-sec isomers in ²⁵⁵No, J, π, T_1/2, multipolarities, Nilsson configurations. Comparison with level scheme of ²⁵⁷Rf from the decay of its isomer, and with theoretical calculations based on the mean-field models. ^253mNo, ^255mRf, ^257mRf; deduced Nilsson configurations of high-K 3-qp isomeric states in N=151 and N=153 isotopes. Systematics of experimental and theoretical single-particle states in N=153 isotones of ²⁴⁷Pu, ²⁴⁹Cm, ²⁵¹Cf, ²⁵³Fm, ²⁵⁵No, ²⁵⁷Rf, ²⁵⁹Sg, ²⁶¹Hs.

doi: 10.1103/PhysRevC.106.014602