Blocking Effect and Moments of Inertia of K=1/2 Rotational Band in 171Yb**The project supported by National Natural Science Foundation of China under Grant Nos. 10147205 and 10375001

Abstract

The rotational band in is investigated using the particle number conserving (PNC) method for treating the cranked shell model with monopole and quadrupole pairing interactions. The experimental moments of inertia of (signature ) are reproduced well by the PNC calculation, in which no free parameter is involved. The difference in the contribution to the moment of inertia between protons and neutrons is mainly due to the blocking effect of neutron normal orbitals. The variation of the occupation probability of each cranked orbital and the contribution to the moment of inertia from each major shell and from each cranked orbital are investigated.