Particle Width Effect on $CP$-Violating Asymmetries

Jiang Liu

doi:10.1103/PhysRevD.47.R1741

Particle Width Effect on $CP$-Violating Asymmetries

高能物理 - 唯象学 2009-12-30 v1

作者: Jiang Liu

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摘要

$CP$ -violating asymmetries calculated from the Breit-Wigner approximation for unstable particle propagators violate $CPT$ . A formalism satisfying $CP$ invariance and unitarity is presented. Applications are given to $t$ decays. For the decay $t\to b\nu_{\tau}\bar{\tau}$ in a class of $CP$ -violating models the $CP$ -violating asymmetry turns out to be $10^{-4}$ times smaller than the previously reported results.

关键词

cp violation in higgs cp violation cpt violation

引用

@article{arxiv.hep-ph/9209294,
  title  = {Particle Width Effect on $CP$-Violating Asymmetries},
  author = {Jiang Liu},
  journal= {arXiv preprint arXiv:hep-ph/9209294},
  year   = {2009}
}

备注

8 pages

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