https://doi.org/10.1140/epja/i2015-15047-6
Regular Article - Theoretical Physics
Nuclear structure of 122-134Ba in IBM-1
Ramjas College, University of Delhi, 110007, Delhi, India
* e-mail: jbgupta2011@gmail.com
Received:
26
January
2015
Revised:
21
March
2015
Accepted:
2
April
2015
Published online:
27
April
2015
The nuclear level structures of 122-134 Ba isotopes have been studied empirically in relation to the analytic symmetries of the interacting boson model IBM-1 and in the calculation of the IBM-1 Hamiltonian. Comparison is made with experiment and with the microscopic dynamic pairing plus quadrupole model predictions available from our previous studies. The variation of the structure of states in the 22 + bands and of the 0 2,3 + bands, with neutron number N, have been studied. Relation of odd-even spin staggering in the 22 + bands with the β-softness is illustrated. A comparison is made with predictions of the various analytical symmetries.
© SIF, Springer-Verlag Berlin Heidelberg, 2015