ISOSPIN BREAKING IN LOW-ENERGY PION-NUCLEON SCATTERING

被引：65

作者：

GIBBS, WR ^{[1
]}

AI, L ^{[1
]}

KAUFMANN, WB ^{[1
]}

机构：

[1] ARIZONA STATE UNIV,DEPT PHYS & ASTRON,TEMPE,AZ 85287

来源：

PHYSICAL REVIEW LETTERS | 1995年 / 74卷 / 19期

关键词：

D O I：

10.1103/PhysRevLett.74.3740

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We have analyzed low-energy pion-nucleon data for isospin invariance by comparing charge-exchange amplitudes derived from charge-exchange data with those predicted from recent π±p elastic data through the application of isospin invariance. A discrepancy of the order of 7% is observed beyond the contributions of the π±p Coulomb interaction and the hadronic mass differences. © 1995 The American Physical Society.

引用

页码：3740 / 3743

页数：4

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