Physics
Scientific paper
Oct 2001
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2001aps..haw.sb011i&link_type=abstract
American Physical Society, First Joint Meeting of the Nuclear Physicists of the American and Japanese Physical Societies October
Physics
Scientific paper
Within the current explosive nucleosynthsis models at Supernova(SN) explosion, the origin of heavy proton rich nuclei and the element abundance universality are not sufficiently explained yet. As a clue to solve this problem, we propose a new process to synthesize nuclei by fragmentation of SN matter through Liquid-Gas(LG) phase transition, as a preprocess of the normal rapid neutron capture process, and study the possibility qualitatively. At the last JPS meeting, we have shown that SN matter experienced LG phase transition can be ejected to outer space by using two-phase coexistence model with RMF. Besides, we have demonstrated that the mass distribution in the solar system can be globally described in a statistical model. However, we have not treated the mean field and statistical features of SN matter fragmentation in a consistent way. We improve this point and compare the mass and isotope distributions in LG coexistence region at this presentation. Specifically, we extend the statistical model to be consistent with the equation of state in RMF in the limit without Coulomb and shell correction effects.
Ishizuka Chikako
Ohnishi Akira
Sumiyoshi Kousuke
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