CP violation in a light Higgs boson decay from τ-spin correlations at a linear collider

被引：23
|
作者：
Rougé, A [1 ]
机构：
[1] Ecole Polytech, CNRS, IN2P3, Lab Leprince Ringuet, F-91128 Palaiseau, France
来源：
PHYSICS LETTERS B | 2005年 / 619卷 / 1-2期
关键词：
D O I：
10.1016/j.physletb.2005.05.076
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We present a new method to measure the transverse spin correlation in the H -> tau(+)tau(-) decay. The method has been devised to be insensitive to the beamstrahlung which affects the definition of the beam energy at a linear collider. In the case of two tau(+/-) -> pi(+/-) nu(tau)(nu(tau)) decays, using the anticipated detector performance of the TESLA project, we get a promising estimation of the error expected on the measurement of a CP violating phase. (c) 2005 Elsevier B.V. All rights reserved.
引用
收藏
页码：43 / 49
页数：7
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