A. Baran,
J.A. Sheikh,
J. Dobaczewski,
W. Nazarewicz
July 28, 2010
Collective mass tensor derived from the cranking approximation to
the adiabatic time-dependent Hartree-Fock-Bogoliubov (ATDHFB)
approach is compared with that obtained in the Gaussian Overlap
Approximation (GOA) to the generator coordinate method. Illustrative
calculations are carried out for one-dimensional quadrupole fission
pathways in
Fm. It is shown that the collective mass
exhibits strong variations with the quadrupole collective
coordinate. These variations are related to the changes in the
intrinsic shell structure. The differences between collective
inertia obtained in cranking and perturbative cranking
approximations to ATDHFB, and within GOA, are discussed.