Physics – Nuclear Physics
Scientific paper
Feb 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998phrvc..57..714b&link_type=abstract
Physical Review C (Nuclear Physics), Volume 57, Issue 2, February 1998, pp.714-721
Physics
Nuclear Physics
47
Nuclear Matter, Nuclear Matter Aspects Of Neutron Stars, Specific Phase Transitions
Scientific paper
The lowest order constrained variational method is used to calculate the properties of asymmetrical nuclear matter with the new charge-independent breaking, Argonne V18 (AV18), as well as Argonne V14 (AV14) potentials, for a wide range of density and proton to neutron ratio. The new AV18 potential, unlike AV14 and Δ-Reid interactions, overbinds nuclear matter at a saturation density of about 0.31 fm-3 which agrees well with the variational method based on hypernetted chain summation techniques. It is shown that it is not a good approximation to use the result of nuclear and neutron matter to get the equation of state of asymmetrical nuclear matter with an empirical parabolic approximation. Finally, various properties of asymmetrical nuclear matter such as incompressibility, symmetry energy, etc., are given and a comparison is made with the other many-body techniques.
Bordbar Gholam Hossein
Modarres M.
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