Higgs mass and right-handed sneutrino WIMP in a supersymmetric 3-3-1 model

Abstract

This work deals with right handed sneutrino as thermal cold dark matter candidate. This scalar emerges in a supersymmetric version of $SU(3{)}_c\otimes SU(3{)}_L\otimes U(1{)}_X$ gauge model where right handed neutrinos are a natural component of leptonic chiral scalar supermultiplets. We first consider the issue of a $125$~GeV Higgs boson mass in this model, showing that constraints on stop mass and trilinear soft coupling are considerably alleviated compared to MSSM. Then we investigate the region of parameter space that is consistent with right handed sneutrino as thermal cold dark matter, under the light of Planck results on the relic abundance and direct detection from LUX experiment. This sneutrino mainly annihilates through an extra neutral gauge boson, $Z^{\prime }$, and Higgs exchange, so that the physics of dark matter is somewhat related to the parameters determining Higgs and $Z^{\prime }$ masses. We then obtain that right handed sneutrino in this model must be heavier than $400$~GeV to conform with Planck and LUX, simultaneously constraining the $Z^{\prime }$ mass to be above 2400~GeV, which is in perfect agreement with LHC searches in a non-supersymmetric version of this model.

Minor changes, references added, 20 pages, 4 figures and 1 table

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• R-parity as a residual gauge symmetry : probing a theory of cosmological dark matter
• A Call for New Physics : The Muon Anomalous Magnetic Moment and Lepton Flavor Violation
• The Dark Sequential Z' Portal: Collider and Direct Detection Experiments
• Constraining 3-3-1 Models at the LHC and Future Hadron Colliders
• Lepton Flavor Violation Induced by Dark Matter
• Resonant slepton production and right sneutrino dark matter in left-right supersymmetry
• Lower Mass Bound on the $W^{\prime }$ mass via Neutrinoless Double Beta Decay in a 3-3-1 Model
• Maximal value for trilinear Higgs coupling in a 3-3-1 EFT