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arXiv · 1607.03878

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

Sanjib Kumar Agarwalla·Kirtiman Ghosh·Ayon Patra
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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.

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Sanjib Kumar Agarwalla, Kirtiman Ghosh, Ayon Patra. 2016-07-13. LHC diphoton excess in a left-right symmetric model with minimal dark matter. https://arxiv.org/abs/1607.03878

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