Grodner, E.Srebrny, J.Droste, Ch.Prochniak, L.Rohozinski, S. G.Kowalczyk, M.Ionescu-Bujor, M.Ur, C. A.Starosta, K.Ahn, T.Kisielinski, M.Marchlewski, T.Aydın, S.Recchia, F.Georgiev, G.Lozeva, R.Fiori, E.Zielinska, M.Chen, Q. B.Zhang, S. Q.Yu, L. F.Zhao, P. W.Meng, J.13.07.20192019-07-2913.07.20192019-07-2920180031-90071079-7114https://doi.org/10.1103/PhysRevLett.120.022502https://hdl.handle.net/20.500.12451/6009The g factor of the 56 ns half-life isomeric state in Cs-128 has been measured using the time-differential perturbed angular distribution method. This state is the bandhead of the positive-parity chiral rotational band, which emerges when an unpaired proton, an unpaired neutron hole, and an even-even core are coupled such that their angular momentum vectors are aplanar (chiral configuration). g-factor measurements can give important information on the relative orientation of the three angular momentum vectors. The measured g factor g = +0.59(1) shows that there is an important contribution of the core rotation in the total angular momentum of the isomeric state. Moreover, a quantitative theoretical analysis supports the conclusion that the three angular momentum vectors lie almost in one plane, which suggests that the chiral configuration in Cs-128 demonstrated in previous works by characteristic patterns of electromagnetic transitions appears only above some value of the total nuclear spin.eninfo:eu-repo/semantics/openAccessArticle120210.1103/PhysRevLett.120.02250229376727Q1WOS:000423131200005N/A