NATURAL SUPPRESSION OF STRONG P- AND T-INVARIANCE VIOLATIONS AND CALCULABLE MIXING ANGLES IN SU(2) BY U(1)

被引：95

作者：

SEGRE, G

WELDON, HA

机构：

[1] Department of Physics, University of Pennsylvania, Philadelphia

来源：

PHYSICAL REVIEW LETTERS | 1979年 / 42卷 / 18期

关键词：

D O I：

10.1103/PhysRevLett.42.1191

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

Permutation symmetry is imposed on an SU(2)LU(1)CP-invariant Lagrangian with six quarks. The mixing angles of the b and t are determined: b decays predominantly to u and a meson containing b should have a lifetime τB10-11 sec or less. A phase in the gauge couplings of b and t causes nonconservation of CP in KL decays that is naturally small. No violations of P and T invariance are induced into the strong interactions by φ=arg(DetM) at the tree level. One-loop corrections yield an upper bound of φ<10-10(msmb)(mtmb)2. © 1979 The American Physical Society.

引用

页码：1191 / 1195

页数：5

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