Lepton flavor violating decays of Standard-Model-like Higgs in 3-3-1 model with neutral lepton

被引：42

作者：

Hue, L. T. ^{[1
]}

Long, H. N. ^{[2
,3
]}

Thuc, T. T. ^{[1
]}

Phong Nguyen, T. ^{[4
]}

机构：

[1] VAST, Inst Phys, 10 Dao Tan, Hanoi, Vietnam

[2] Ton Duc Thang Univ, Theoret Particle Phys & Cosmol Res Grp, Ho Chi Minh City, Vietnam

[3] Ton Duc Thang Univ, Fac Sci Appl, Ho Chi Minh City, Vietnam

[4] Cantho Univ, Dept Phys, 3-2 St, Ninh Kieu, Cantho, Vietnam

来源：

NUCLEAR PHYSICS B | 2016年 / 907卷

关键词：

WEAK-INTERACTIONS; MU-TAU; BOSON; CONSTRAINTS; SEARCH; GAMMA; FCNC;

D O I：

10.1016/j.nuclphysb.2016.03.034

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：

The one loop contribution to the lepton flavor violating decay h(0) -> mu tau of the SM-like neutral Higgs (LFVHD) in the 3-3-1 model with neutral lepton is calculated using the unitary gauge. We have checked in detail that the total contribution is exactly finite, and the divergent cancellations happen separately in two parts of active neutrinos and exotic heavy leptons. By numerical investigation, we have indicated that the one-loop contribution of the active neutrinos is very suppressed while that of exotic leptons is rather large. The branching ratio of the LFVHD strongly depends on the Yukawa couplings between exotic leptons and SU(3)(L) Higgs triplets. This ratio can reach 10(-5) providing large Yukawa couplings and constructive correlations of the SU(3)(L) scale (v(3)) and the charged Higgs masses. The branching ratio decreases rapidly with the small Yukawa couplings and large v(3). (C) 2016 The Authors. Published by Elsevier B.V. This is an open access article under the CC BY license.

引用

页码：37 / 76

页数：40

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