Backbending phenomenon in Cr-48
Nov, 1998
11 pages
Published in:
- Phys.Rev.C 58 (1998) 2765-2776
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Abstract: (APS)
A new mechanism for the backbending phenomenon in 48Cr is discussed based on a careful analysis of the yrast band, where no level crossing of the single-particle orbits is expected. A newly developed numerical code for solving the self-consistent cranked Hartree-Fock-Bogoliubov (HFB) equation with a maximum overlap criterion is applied to 48Cr, and various continuous cranked HFB solutions forming many rotational bands are obtained. By using the first derivative of the cranked HFB wave function with respect to the total angular momentum, and by comparing the Thouless-Valatin and the Inglis moments of inertia, it is pointed out that a fully self-consistent mean-field treatment, which properly takes into account the two-body residual interaction, is crucial in explaining cases of backbending phenomena that are not associated with a single-particle level crossing.- 21.10.Re
- 21.60.Jz
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