Nuclear expansion with excitation

Details Nuclear expansion with excitation Nuclear expansion with excitation

2005-12-05

arxiv.org/abs/nucl-th/0512014v3

Phys.Lett.B638:160-165,2006

Physics

Nuclear Physics

Nuclear Theory

17 pages, 5 figures, revtex4; calculations with deformation added

Scientific paper

10.1016/j.physletb.2006.05.046

The expansion of an isolated hot spherical nucleus with excitation energy and its caloric curve are studied in a thermodynamic model with the SkM* force as the nuclear effective two-body interaction. The calculated results are shown to compare well with the recent experimental data from energetic nuclear collisions. The fluctuations in temperature and density are also studied. They are seen to build up very rapidly beyond an excitation energy of 9 MeV/u. Volume-conserving quadrupole deformation in addition to expansion indicates, however, nuclear disassembly above an excitation energy of 4 MeV/u

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