FLAVOR SU(2) SYMMETRY-BREAKING IN DEEP INELASTIC-SCATTERING

被引：133

作者：

SIGNAL, A

SCHREIBER, AW

THOMAS, AW

机构：

来源：

MODERN PHYSICS LETTERS A | 1991年 / 6卷 / 03期

关键词：

D O I：

10.1142/S0217732391000233

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

Recently deep inelastic scattering experiments have implied that the 'sea' of the nucleon breaks flavor SU(2) symmetry. We examine the possible origins of this symmetry breaking in the Fermi statistics of the quarks and antiquarks in the sea and the requirements of chiral symmetry. We show that the present data have a natural explanation in terms of the long-range pion structure of the nucleon. Further work may lead to useful bounds on the parameters of bag models of the nucleon.

引用

页码：271 / 276

页数：6