Competition between T=0 and T=1 pairing in proton-rich nuclei

被引：181

作者：

Satula, W

Wyss, R

机构：

[1] JOINT INST HEAVY ION RES,OAK RIDGE,TN 37831

[2] UNIV TENNESSEE,DEPT PHYS,KNOXVILLE,TN 37996

[3] UNIV WARSAW,INST THEORET PHYS,PL-00681 WARSAW,POLAND

来源：

PHYSICS LETTERS B | 1997年 / 393卷 / 1-2期

关键词：

D O I：

10.1016/S0370-2693(96)01603-6

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

A cranked mean-field model with two-body T = 1 and T = 0 pairing interactions is presented. Approximate projection onto good particle-number is enforced via an extended Lipkin-Nogami scheme. Our calculations suggest the simultaneous presence of both T = 0 and T = 1 pairing modes in N = Z nuclei. The transitions between different pairing phases are discussed as a function of neutron/proton excess, T-z, and rotational frequency, HBAR omega. The additional binding energy due to the T = 0 np-pairing correlations, is suggested as a possible microscopic explanation of the Wigner energy term in even-even nuclei.

引用

页码：1 / 6

页数：6

共 18 条

[1] NUCLEAR-MASS FORMULA VIA AN APPROXIMATION TO THE HARTREE-FOCK METHOD [J].