http://arxiv.org/abs/1907.12808
Recently, the CMS Collaboration observed the hint of a resonance decaying to two photons at about 96 GeV with a local significance of $2.8\sigma$. While it is too early to say whether this will stand the test of time, such a resonance can easily be accommodated in several extensions of the Standard Model (SM). Assuming that the new resonance is a scalar, we try to see its effect on several simplistic models that also contain a cold dark matter candidate. As expected, we find that with such a scalar, the parameter space gets more constrained and hence, more tractable. In this paper, we explore the consequences of such SM extensions that provide a 96 GeV scalar and one or more cold dark matter candidates. We show how significant constraints can be placed on the parameter space, not only from direct dark matter searches or LHC data but also from theoretical considerations like scattering unitarity or stability of the potential.
P. Mondal, S. Maharana and A. Kundu
Wed, 31 Jul 19
22/65
Comments: 16 pages, 25 figures
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