Three-body force effect on P-3 F-2 neutron superfluidity in neutron matter, neutron star matter, and neutron stars

We investigate the effect of microscopic three-body forces on the P-3 F-2 neutron superfluidity in neutron matter, beta-stable neutron star matter, and neutron stars by using the BCS theory and the Brueckner-Hartree-Fock approach. We adopt the Argonne V18 potential supplemented with a microscopic three-body force as the realistic nucleon-nucleon interaction. We have concentrated on studying the three-body force effect on the P-3 F-2 neutron pairing gap. It is found that the three-body force effect considerably enhances the P-3 F-2 neutron superfluidity in neutron star matter and neutron stars.

National Natural Science Foundation of China 10575119 10775061 Knowledge Innovation Project KJCX3-SYW-N2 Chinese Academy of Sciences Major State Basic Research Developing Program of China 2007CB815004 CAS/SAFEA International Partnership Program for Creative Research Teams CXTD-J2005-1 Asia-Link project CN/ASIA-LINK/008(94791)