Three prong tau decays with charged kaons in the final state

被引：0
|
作者：
Kass, RD
机构：
[1] Department of Physics, Ohio State University, Columbus
来源：
NUCLEAR PHYSICS B | 1997年
关键词：
D O I：
10.1016/S0920-5632(97)00210-7
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：
Recent results from the CLEO experiment on 3-prong pi decays containing a charged kaon are reported. From a direct search for tau(-) --> phi h(-)nu(tau) (h(-) = pi(-) or K-) we find model-dependent upper limits on the branching fractions in the range: B(tau(-) --> phi pi(-)nu(tau)) < (1.2 - 2.0) x 10(-4) and B(tau(-) --> phi K(-)nu(tau)) < (5.4 - 6.7) x 10(-5) at 90% confidence level. We also report the preliminary results B(tau(-) --> K(-)h(+)pi(-)nu)/B(tau(-) --> pi(-)pi(+)pi(-)nu) = (4.66 +/- 0.29 +/- 0.81)% and B(tau(-) --> K(-)h(+)pi(-)nu)/B(tau(-) --> h(-)h(+)h(-)nu) = (4.45 +/- 0.29 +/- 0.81)%.
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页码：145 / 152
页数：8
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