Isospin-dependent pairing interaction from nuclear matter calculations

Details Isospin-dependent pairing interaction from nuclear matter calculations Isospin-dependent pairing interaction from nuclear matter calculations

Apr 2010

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2010phrvc..81d4313z&link_type=abstract

Physical Review C, vol. 81, Issue 4, id. 044313

Physics

4

Nuclear Matter, Nucleon-Nucleon Interactions, Forces In Hadronic Systems And Effective Interactions, Nuclear Matter Aspects Of Neutron Stars

Scientific paper

The isospin dependence of the effective pairing interaction is discussed on the basis of the Bardeen, Cooper, and Schrieffer theory of superfluid asymmetric nuclear matter. It is shown that the energy gap, calculated within the mean field approximation in the range from symmetric nuclear matter to pure neutron matter, is not linearly dependent on the symmetry parameter owing to the nonlinear structure of the gap equation. Moreover, the construction of a zero-range effective pairing interaction compatible with the neutron and proton gaps in homogeneous matter is investigated, along with some recent proposals of isospin dependence tested on the nuclear data table.

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