Tau lepton mixing with charginos and its effects on chargino searches at e+e- colliders

被引：25

作者：

Akeroyd, AG ^{[1
]}

Díaz, MA ^{[1
]}

Valle, JWF ^{[1
]}

机构：

[1] Univ Valencia, CSIC, IFIC, Dept Fis Teor, E-46100 Valencia, Spain

来源：

PHYSICS LETTERS B | 1998年 / 441卷 / 1-4期

关键词：

D O I：

10.1016/S0370-2693(98)01191-5

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In bilinear R-parity violating models where a term epsilon(3)L(3)H(2) is introduced in the superpotential, the tau lepton can mix with charginos. We show that this mixing is fully compatible with LEP1 precision measurements of the Z tau tau and W tau nu(tau) couplings even for large values of epsilon(3) and of the induced vacuum expectation value nu(3) of the tau-sneutrino. The single production of charginos at e(+)e(-) colliders is possible in this case and we present numerical values of the cross-section at LEP1, LEP2 and an NLC. We find maximum values of 10 pb at LEP1 and 1 fb at NLC, while the corresponding values at LEP2 are too small to observe. (C) 1998 Elsevier Science B.V. All rights reserved.

引用

页码：224 / 234

页数：11

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