Higgs Quadruplet Impact on $W$ Mass Shift, Dark Matter, and LHC Signatures

Abstract

The addition of a Higgs quadruplet to the standard model (SM) of quarks and leptons would shift the $W$ boson mass upward. It could also facilitate the production of dark matter through the conventional thermal freeze-out scenario via Yukawa interaction with the Higgs quadruplet or freeze-in production from the decay of SM Higgs. We investigate the same-sign lepton smoking gun signature of the double-charged scalar component of the Quadruplet Higgs at the LHC.

7 pages, 5 fugures, 1 table, matches the version accepted for publication in PRD

References in corpus (3)

• TeV-scale Seesaw with Quintuplet Fermions
• Bounds on the mass of doubly-charged Higgs bosons in the same-sign diboson decay scenario
• Cascade Seesaw for Tiny Neutrino Mass

Cited by in corpus (2)

• Anatomy of the Real Higgs Triplet Model
• Sensitivity of $W$-boson measurements to low-mass right-handed neutrinos