Intrinsic vs. laboratory frame description of the deformed nucleus 48Cr

Abstract

The collective yrast band of the nucleus ${}^{48}$Cr is studied using the spherical shell model and the HFB method. Both approaches produce basically the same axially symmetric intrinsic state up to the - accurately reproduced - observed backbending. Agreement between both calculations extends to most observables. The only significant discrepancy comes from the static moments of inertia and can be attributed to the need of a more refined treatment of pairing correlations in the HFB calculation.

Comments: 4 pages, RevTeX 3.0 using psfig, 6 Postscript figures included using uufiles