Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2001-04-25
Phys.Rev. C64 (2001) 017304
Physics
Nuclear Physics
Nuclear Theory
6 pages revtex file + 4 ps files for figures, Phys. Rev. C (in press)
Scientific paper
10.1103/PhysRevC.64.017304
The thermal evolution of the shell correction energy is investigated for deformed nuclei using Strutinsky prescription in a self-consistent relativistic mean-field framework. For temperature independent single-particle states corresponding to either spherical or deformed nuclear shapes, the shell correction energy $\Delta_{sc}$ steadily washes out with temperature. However, for states pertaining to the self-consistent thermally evolving shapes of deformed nuclei, the dual role played by the single-particle occupancies in diluting the fluctuation effects from the single-particle spectra and in driving the system towards a smaller deformation is crucial in determining $\Delta_{sc}$ at moderate temperatures. In rare earth nuclei, it is found that $\Delta_{sc}$ builds up strongly around the shape transition temperature; for lighter deformed nuclei like $^{64}Zn$ and $^{66}Zn$, this is relatively less prominent.
Agrawal B. K.
De J. N.
Samaddar S. K.
Sil Tapas
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