Physics – Nuclear Physics
Scientific paper
Feb 1999
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999phrvc..59..682b&link_type=abstract
Physical Review C (Nuclear Physics), Volume 59, Issue 2, February 1999, pp.682-703
Physics
Nuclear Physics
69
Nuclear Matter, Nuclear Physics Aspects Of Novae, Supernovae, And Other Explosive Environments, Nuclear Matter Aspects Of Neutron Stars, Low And Intermediate Energy Heavy-Ion Reactions
Scientific paper
The microscopic theory of the nuclear matter equation of state at finite temperature is developed within the Bloch-De Dominicis diagrammatic expansion. The liquid gas phase transition of symmetric nuclear matter is identified, with a critical temperature Tc~20 MeV, using the Argonne v14 as the bare NN interaction and a phenomenological three-body force adjusted to give the correct saturation point. Pure neutron and asymmetric matter, relevant to supernovae explosions, are also studied. It is found that the liquid-gas phase transition disappears at asymmetries a>0.9. At the bounce-off of the supernova collapse, temperatures of several tens of MeV are reached and we find that the compressibility steeply increases at such temperatures. Finally, we find that the equation of state gives a ``limiting temperature'' of finite nuclei consistent with the experimental observation in compound nucleus reactions. A careful analysis of the diagrammatic expansion reveals that the dominant terms are the ones that correspond to the zero-temperature Bethe-Brueckner-Goldstone diagrams, where the temperature is introduced in the occupation numbers only, represented by Fermi distributions, thus justifying this commonly used procedure of naively introducing the temperature effect.
Baldo Marcello
Ferreira L. S.
No associations
LandOfFree
Nuclear liquid-gas phase transition does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Nuclear liquid-gas phase transition, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Nuclear liquid-gas phase transition will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-949583