Core-excited states leading to the high-spin band structure in 93Nb nucleus

Abstract

We used the 80Se(18O,p4n) 93Nb reaction with a beam energy of 99MeV and the INGA spectrometer to investigate high-spin states in odd A 93Nb. Our data analysis revealed the spectral features of the nuclear states of interest. The previously reported decay scheme was verified. Spin and parity were assigned to the existing levels. Fourteen new side-feeding transitions were placed. Doppler shift attenuation method was used to measure the lifetimes of multiple levels in the dipole and quadrupole bands. Comparisons between the experimental characteristics and cranked Nilsson-Strutinsky calculations for the observed quadrupole bands and dipole bands indicate that these bands have been formed on the triaxial deformed shape of 93Nb. © The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024.