https://doi.org/10.1140/epja/s10050-024-01440-1
Regular Article – Experimental Physics
Core-excited states leading to the high-spin band structure in 
Nb nucleus
1
Department of Physics, Indian Institute of Technology (BHU), 221005, Varanasi, India
2
Department of Nuclear and Atomic Physics, T. I. F. R., 400005, Mumbai, India
Received:
8
August
2024
Accepted:
25
October
2024
Published online:
25
November
2024
We used the 
Se(
O,p4n) Nb reaction with a beam energy of 99MeV and the INGA spectrometer to investigate high-spin states in odd A Nb. 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 Nb.
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© The Author(s), under exclusive licence to Società Italiana di Fisica and Springer-Verlag GmbH Germany, part of Springer Nature 2024. Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.
