Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2008-12-17
Phys.Rev.C80:064301,2009
Physics
Nuclear Physics
Nuclear Theory
11 pages, 17 figures. We clarify the connection between the effective masses and the pairing density functional in the revised
Scientific paper
10.1103/PhysRevC.80.064301
Toward a universal description of pairing properties in nuclei far from stability, we extend the energy density functional by enriching the isovector density dependence in the particle-particle channel (pair density functional, pair-DF). We emphasize the necessity of both the linear and quadratic isovector density terms. The parameters are optimized by the Hartree-Fock-Bogoliubov calculation for 156 nuclei of the mass number A=118-196 and the asymmetry parameter (N-Z)/A<0.25. We clarify that the pair-DF should include the isovector density dependence in order to take into account the effect of the isoscalar and isovector effective masses in the particle-hole channel consistently. The different Skyrme forces can give the small difference in the pairing gaps toward the neutron drip line, if the optimal pair-DF consistent with the particle-hole channel is employed.
Nakatsukasa Takashi
Shimizu Yoshifumi R.
Yamagami Masayuki
No associations
LandOfFree
Optimal pair density functional for description of nuclei with large neutron excess 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 Optimal pair density functional for description of nuclei with large neutron excess, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Optimal pair density functional for description of nuclei with large neutron excess will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-94410