Surface behaviour of the pairing gap in a slab of nuclear matter

被引：14

作者：

Baldo, M

Farine, M

Lombardo, U

Saperstein, EE

Schuck, P

Zverev, MV

机构：

[1] Ist Nazl Fis Nucl, Sez Catania, I-95129 Catania, Italy

[2] Ecole Navale, F-29240 Brest, France

[3] Ist Nazl Fis Nucl, LNS, I-95123 Catania, Italy

[4] Dipartimento Fis, I-95129 Catania, Italy

[5] Kurchatov Inst, Moscow 123182, Russia

[6] Univ Paris 11, CNRS, IN2P3, Inst Phys Nucl, F-91406 Orsay, France

来源：

EUROPEAN PHYSICAL JOURNAL A | 2003年 / 18卷 / 01期

关键词：

D O I：

10.1140/epja/i2003-10064-8

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

The surface behavior of the pairing gap previously studied for semi-infinite nuclear matter is analyzed in the slab geometry. The gap-shape function is calculated in two cases: a) pairing with the Gogny force in a hard-wall potential and b) pairing with the separable Paris interaction in a Saxon-Woods mean-field potential. It is shown that the surface features are preserved in the case of slab geometry, being almost independent of the width of the slab. It is also demonstrated that the surface enhancement is strengthened as the absolute value of chemical potential |mu| decreases which simulates the approach to the nucleon drip line.

引用

页码：17 / 23

页数：7

共 22 条

[1]

Baldo M, 1999, PHYS ATOM NUCL+, V62, P66

[2] Microscopic study of the effective pairing interaction in semi-infinite nuclear matter with the separable NN-interaction [J].