Neutrino mass from Higgs quadruplet and multicharged Higgs searches at the LHC

被引：18
作者：
Ghosh, Tathagata [1 ,2 ,3 ]
Jana, Sudip [2 ,3 ,4 ]
Nandi, S. [2 ,3 ]
机构：
[1] Univ Hawaii, Dept Phys & Astron, Honolulu, HI 96822 USA
[2] Oklahoma State Univ, Dept Phys, Stillwater, OK 74078 USA
[3] Oklahoma State Univ, Oklahoma Ctr High Energy Phys, Stillwater, OK 74078 USA
[4] Fermilab Natl Accelerator Lab, Theoret Phys Dept, Batavia, IL 60510 USA
来源：
PHYSICAL REVIEW D | 2018年 / 97卷 / 11期
关键词：
MODEL; SYMMETRY;
D O I：
10.1103/PhysRevD.97.115037
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
In this paper, we revisit the dimension-7 neutrino mass generation mechanism based on the addition of an isospin 3/2 scalar quadruplet and two vectorlike isotriplet leptons to the standard model. We discuss the LHC phenomenology of the charged scalars of this model, complemented by the electroweak precision and lepton flavor violation constraints. We pay particular attention to the triply charged and doubly charged components. We focus on the same-sign-trilepton signatures originating from the triply charged scalars and find a discovery reach of 600-950 GeV at 3 ab(-1) of integrated luminosity at the LHC. On the other hand, doubly charged Higgs has been an object of collider searches for a long time, and we show how the present bounds on its mass depend on the particle spectrum of the theory. Strong constraints on the model parameter space can arise from the measured decay rate of the standard model Higgs to a pair of photons as well.
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页数：24
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