CHARGE-SYMMETRY-BREAKING POTENTIALS FROM ISOSPIN-VIOLATING MESON-BARYON COUPLING-CONSTANTS

被引：21

作者：

GARDNER, S

HOROWITZ, CJ

PIEKAREWICZ, J

机构：

[1] INDIANA UNIV,CTR NUCL THEORY,BLOOMINGTON,IN 47405

[2] INDIANA UNIV,DEPT PHYS,BLOOMINGTON,IN 47405

[3] FLORIDA STATE UNIV,SUPERCOMP COMPUTAT RES INST,TALLAHASSEE,FL 32306

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 75卷 / 13期

关键词：

D O I：

10.1103/PhysRevLett.75.2462

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We consider charge-symmetry violations in the nucleon-nucleon force that result from isospin-violating meson-baryon coupling constants. The isospin violations arise from the difference in the up and down constituent quark masses. We show that a class IV charge-symmetry-breaking potential exists in the resulting omega exchange contribution to the NN force. The magnitude of this contribution is consistent with that phenomenologically required by the measured difference of n and p analyzing powers in elastic (n) over right arrow-(p) over right arrow scattering at 183 MeV.

引用

页码：2462 / 2465

页数：4

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