Exploring the doubly charged Higgs boson of the left-right symmetric model using vector boson fusionlike events at the LHC

Dutta, Bhaskar; Eusebi, R.; Gao, Y.; Ghosh, Tathagata; Kamon, T.

doi:10.1103/physrevd.90.055015

Cited by 43 publications

(37 citation statements)

References 74 publications

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“…This will give rise to a purely type I seesaw framework with TeV scale left-right symmetry. Such possibilities were discussed in the last reference of [30][31][32][33][34] and also in [78,79].…”

Section: Jhep11(2015)208mentioning

confidence: 99%

Neutrinoless double beta decay in type I+II seesaw models

Borah

Dasgupta

2015

J. High Energ. Phys.

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We study neutrinoless double beta decay in left-right symmetric extension of the standard model with type I and type II seesaw origin of neutrino masses. Due to the enhanced gauge symmetry as well as extended scalar sector, there are several new physics sources of neutrinoless double beta decay in this model. Ignoring the left-right gauge boson mixing and heavy-light neutrino mixing, we first compute the contributions to neutrinoless double beta decay for type I and type II dominant seesaw separately and compare with the standard light neutrino contributions. We then repeat the exercise by considering the presence of both type I and type II seesaw, having non-negligible contributions to light neutrino masses and show the difference in results from individual seesaw cases. Assuming the new gauge bosons and scalars to be around a TeV, we constrain different parameters of the model including both heavy and light neutrino masses from the requirement of keeping the new physics contribution to neutrinoless double beta decay amplitude below the upper limit set by the GERDA experiment and also satisfying bounds from lepton flavor violation, cosmology and colliders.

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Section: Jhep11(2015)208mentioning

confidence: 99%

Neutrinoless double beta decay in type I+II seesaw models

Borah

Dasgupta

2015

J. High Energ. Phys.

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“…These models may wash out the lepton asymmetry generated by the right-handed neutrino decays. (iii) The interactions of the right-handed triplet Higgs scalars ∆ R [24][25][26][27] can also affect the lepton asymmetry generated by other mechanisms. (iv) The left-handed triplet Higgs scalars ∆ L can generate a lepton asymmetry and also a neutrino mass, after the right-handed neutrinos decay [28][29][30][31][32].…”

Section: Introductionmentioning

confidence: 99%

Alternative formulation of left-right symmetry with B−L conservation and purely Dirac neutrinos

et al. 2019

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We propose an alternative formulation of a Left-Right Symmetric Model (LRSM) where the difference between baryon number (B) and lepton number (L) remains an unbroken symmetry. This is unlike the conventional formulation, where B − L is promoted to a local symmetry and is broken explicitly in order to generate Majorana neutrino masses. In our case B −L remains a global symmetry after the left-right symmetry breaking, allowing only Dirac mass terms for neutrinos. In addition to parity restoration at some high scale, this formulation provides a natural framework to explain B − L as an anomaly-free global symmetry of the Standard Model and the non-observation of (B − L)-violating processes. Neutrino masses are purely Dirac type and are generated either through a two loop radiative mechanism or by implementing a Dirac seesaw mechanism.

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“…In contrast, pair production of Δ AEAE for the ΔM > 0 case mentioned above will be sensitive to this study if one lepton is lost or mistagged, but given the range of M Δ AEAE we are interested in, the occurrence of such events is very unlikely. This is because the decay of Δ AEAE leads to appreciably energetic leptons [50], which has high tagging efficiency.…”

Section: Searches For δmentioning

confidence: 99%

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

2018

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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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Exploring the doubly charged Higgs boson of the left-right symmetric model using vector boson fusionlike events at the LHC

Cited by 43 publications

References 74 publications

Neutrinoless double beta decay in type I+II seesaw models

Neutrinoless double beta decay in type I+II seesaw models

Alternative formulation of left-right symmetry with B−L conservation and purely Dirac neutrinos

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

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