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

Journal Article · · Physical Review. D.

In this study, 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.

Research Organization:
Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States); Oklahoma State Univ., Stillwater, OK (United States); Univ. of Hawaii, Honolulu, HI (United States)
Sponsoring Organization:
USDOE Office of Science (SC), High Energy Physics (HEP)
Grant/Contract Number:
AC02-07CH11359; SC0016013; SC0010504
OSTI ID:
1455098
Alternate ID(s):
OSTI ID: 1439471; OSTI ID: 1598565
Report Number(s):
FERMILAB-PUB-18-125-T; UH-511-1288-2017; OSU-HEP-18-01; arXiv:1802.09251; PRVDAQ; 115037
Journal Information:
Physical Review. D., Journal Name: Physical Review. D. Vol. 97 Journal Issue: 11; ISSN 2470-0010
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 14 works
Citation information provided by
Web of Science

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