Doubly-charged Higgs and vacuum stability in left-right supersymmetry

Abstract

We present an analysis of supersymmetric left-right symmetric models with Higgs fields lying in the adjoint representation of $SU(2{)}_R$. These models feature a doubly-charged Higgs boson which gets its mass only at the loop level. We present, for the first time, a complete one-loop calculation of this mass and show that contributions that have been neglected so far can shift it by a few hundreds of GeV. We then combine this observation with LHC bounds deduced from extra charged gauge boson and doubly-charged Higgs boson searches. In particular, we point out that existing limits get substantially modified by the presence of singly-charged Higgs bosons that are also predicted in these models. In addition, we address constraints stemming from vacuum stability considerations and show how the considered class of models could be ruled out at the next LHC run in the absence of any signal.

25 pages, 11 figures; v2: extended analytical considerations on vacuum stability, added figure 10. Matches published version

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Cited by in corpus (16)

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• Phenomenology of the Higgs sector of a Dimension-7 Neutrino Mass Generation Mechanism
• Perspectives for Detecting Lepton Flavour Violation in Left-Right Symmetric Models
• Is the CMS eejj excess a hint for light supersymmetry?
• Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
• Vacuum Stability in Inert Higgs Doublet Model with Right-handed Neutrinos
• Multileptonic signals of co-annihilating left-right supersymmetric dark matter
• The Ultraviolet Landscape of Two-Higgs Doublet Models
• A constrained supersymmetric left-right model
• Investigating the scalar sector of left-right symmetric models with leptonic probes
• Investigating New Physics Models with Signature of Same-Sign Diboson + ${E/}_T$
• Left-Right Symmetry Breaking and Gravitational Waves : A Tale of Two Phase Transitions
• The left-right supersymmetric option at a high-energy upgrade of the LHC
• Exclusive doubly charged Higgs boson pair production in $pp$ collisions at the LHC
• Anatomy of Heavy Gauge Bosons in a Left-Right Supersymmetric Model