Properties of stellar matter in supernova explosions and nuclear multifragmentation

Details Properties of stellar matter in supernova explosions and nuclear multifragmentation Properties of stellar matter in supernova explosions and nuclear multifragmentation

2006-12-12

arxiv.org/abs/nucl-th/0612055v1

Physics

Nuclear Physics

Nuclear Theory

6 pages, 4 figures, a talk at the International Conference on Nucleus-Nucleus Collisions, Rio de Janeiro, Brazil, 2006

Scientific paper

During the collapse of massive stars, and the supernova type-II explosions, stellar matter reaches densities and temperatures which are similar to the ones obtained in intermediate-energy nucleus-nucleus collisions. The nuclear multifragmentation reactions can be used for determination of properties of nuclear matter at subnuclear densities, in the region of the nuclear liquid-gas phase transition. It is demonstrated that the modified properties of hot nuclei (in particular, their symmetry energy) extracted from the multifragmentation data can essentially influence nuclear composition of stellar matter. The effects on weak processes, and on the nucleosynthesis are also discussed.

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