LHC diphoton excess in a left-right symmetric model with minimal dark matter

Abstract

We construct a model containing a viable dark matter candidate, in the framework of left-right symmetry, which can explain both width and cross-section of the observed 750 GeV diphoton excess at the LHC. We introduce a fermion quintuplet whose neutral component can be a possible dark matter candidate, whereas the charged components enhance the loop induced coupling of a 750 GeV singlet scalar with a pair of photons. We study the photo-production of the singlet scalar and its various decay modes, successfully addressing both the ATLAS and the CMS diphoton excess.

arXiv comment5 pages, 3 pdf figures

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Cited by in corpus (5)

• Probing Doubly Charged Higgs Bosons at the LHC through Photon Initiated Processes
• Interpreting the 750 GeV digamma excess: a review
• Searching for signatures of $E_6$
• Same-sign Multilepton Signatures of an $SU(2{)}_R$ Quintuplet at the LHC
• Plateau Inflation in $R$-parity Violating MSSM