Author:
Dutta Sukanta,Goyal Ashok,Singh Manvinder Pal
Abstract
Abstract
We explore the possibility that the discrepancy in the observed anomalous magnetic moment of the muon Δa
μ
and the predicted relic abundance of Dark Matter by Planck data, can be explained in a lepto-philic 2-HDM augmented by a real SM singlet scalar of mass ∼ 10–80 GeV. We constrain the model from the observed Higgs Decay width at LHC, LEP searches for low mass exotic scalars and anomalous magnetic moment of an electron Δa
e
. This constrained light singlet scalar serves as a portal for the fermionic Dark Matter, which contributes to the required relic density of the universe. A large region of model parameter space is found to be consistent with the present observations from the Direct and Indirect DM detection experiments.
Publisher
Springer Science and Business Media LLC
Subject
Nuclear and High Energy Physics
Reference60 articles.
1. M. Garny, A. Ibarra, M. Pato and S. Vogl, Internal bremsstrahlung signatures in light of direct dark matter searches, JCAP12 (2013) 046 [arXiv:1306.6342] [INSPIRE].
2. J. Goodman et al., Constraints on light Majorana dark matter from colliders, Phys. Lett.B 695 (2011) 185 [arXiv:1005.1286] [INSPIRE].
3. J. Hisano, K. Ishiwata and N. Nagata, Direct detection of dark matter degenerate with colored particles in mass, Phys. Lett.B 706 (2011) 208 [arXiv:1110.3719] [INSPIRE].
4. M. Garny, A. Ibarra, M. Pato and S. Vogl, Closing in on mass-degenerate dark matter scenarios with antiprotons and direct detection, JCAP11 (2012) 017 [arXiv:1207.1431] [INSPIRE].
5. Fermi-LAT collaboration, Dark matter constraints from observations of 25 Milky Way satellite galaxies with the Fermi Large Area Telescope, Phys. Rev.D 89 (2014) 042001 [arXiv:1310.0828] [INSPIRE].
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