ON THE BRUECKNER THEORY OF PAIRING IN SEMIINFINITE NUCLEAR-MATTER BEYOND THE LOCAL-DENSITY APPROXIMATION

被引：13

作者：

BALDO, M

LOMBARDO, U

SAPERSTEIN, EE

ZVEREV, MV

机构：

[1] IV KURCHATOV ATOM ENERGY INST,MOSCOW 123182,RUSSIA

[2] MOSCOW ENGN PHYS INST,MOSCOW 115409,RUSSIA

来源：

PHYSICS LETTERS B | 1995年 / 350卷 / 02期

关键词：

D O I：

10.1016/0370-2693(95)00340-Q

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The problem of pairing in semi-infinite nuclear matter is investigated within a Brueckner type approach beyond the local density approximation (LDA). The propagator of two non-interacting particles in the semi-infinite potential well is calculated numerically for the Saxon-Woods potential. The equation for the effective pairing interaction is solved for a bare interaction of the delta-form with the momentum cutoff which correctly reproduces the NN-scattering data in the low-energy limit. Results show significant deviations from the LDA predictions in the surface region.

引用

页码：135 / 140

页数：6

共 9 条

[1]

Abrikosov A.A., 1963, METHODS QUANTUM FIEL

[2]

AISWORTH TL, 1989, PHYS LETT B, V222, P173

[3] SUPERFLUIDITY IN NEUTRON MATTER AND NUCLEAR-MATTER WITH REALISTIC INTERACTIONS [J].