PARTICLE-WIDTH EFFECT ON CP-VIOLATING ASYMMETRIES

被引：16

作者：

LIU, J

机构：

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

来源：

PHYSICAL REVIEW D | 1993年 / 47卷 / 05期

关键词：

D O I：

10.1103/PhysRevD.47.R1741

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

CP-violating asymmetries calculated from the Breit-Wigner approximation for unstable particle propagators violate CPT invariance. A formalism satisfying CPT invariance and unitarity is presented. Applications are given to t decays. For the decay t --> bnu(tau)tauBAR in a class of CP-violating Higgs models the CP-violating asymmetry turns out to be 10(-4) times smaller than the previously reported results.

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收藏

页码：R1741 / R1743

页数：3

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