CP violation in rare kaon decays

被引：0
|
作者：
Senyo, K [1 ]
机构：
[1] Osaka Univ, Toyonaka, Osaka 5600043, Japan
来源：
HIGH ENERGY PHYSICS 99, PROCEEDINGS | 2000年
关键词：
D O I：
暂无
中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
学科分类号：
摘要：
New results on direct and indirect CP violation searches from the KTeV rare decay program are reported. As a direct CP violation search, KTeV has set three new upper limits on the branching ratio; BR(K-L --> pi0 nu<(<nu>)over bar>) < 5.9 X 10(-7) BR(KL --> pi (0)e(+)e(-)) < 5.64 x 10(-10) and BR(K-L --> pi (0)mu (+)mu (-)) < 3.4 x 10(-10) at the 90 % CL. KTeV has also measured BR(K-L --> pi (+)pi (-)-e(+)e(-)) = (3.63 +/- 0.11(stat.) +/- 0.14(syst.)) x 10(-7), for the decay K-L --> pi (+)pi (-)e(+)e(-) which has an angular asymmetry due to indirect CP violation.
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页码：563 / 565
页数：3
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