Charged Higgs decays in models with singlet neutrino in large extra dimensions

被引：17

作者：

Agashe, K ^{[1
]}

Deshpande, NG ^{[1
]}

Wu, GH ^{[1
]}

机构：

[1] Univ Oregon, Inst Theoret Sci, Eugene, OR 97403 USA

来源：

PHYSICS LETTERS B | 2000年 / 489卷 / 3-4期

关键词：

D O I：

10.1016/S0370-2693(00)00941-2

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

In models with large extra dimensions and TeV scale quantum gravity, small (Dirac) neutrino masses can be obtained naturally if the right-handed neutrino propagates in the extra dimensions. In this scenario, with 2 Higgs doublets, we show that the decay of charged Higgs into left-handed charged lepton (say tau) and right-handed neutrino can be significantly enhanced, with O(1) branching ratio, due to the large number of Kaluza-Klein states of the right-handed neutrino. Since tau's from the standard decay of charged Higgs are right-handed, the above novel charged Higgs decay can provide a distinctive signature of these models at hadron/lepton colliders. Similarly, top quark decays to b mu(+) nu, b tau(+) nu through virtual charged Higgs can be enhanced. (C) 2000 Elsevier Science B.V. All rights reserved.

引用

页码：367 / 376

页数：10

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