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- W630299562 abstract "We propose a hidden sector scenario of dark matter introducing an SU(2)$_{rm H}$ gauge symmetry in addition to the Standard Model (SM) of particle physics. The dark sector is invariant under this hidden SU(2)$_{rm H}$ and behaves like a singlet under the SM gauge group. Local SU(2)$_{rm H}$ invariance of the dark sector is broken spontaneously when the scalar field in this sector acquires a vacuum expectation value (VEV) and thereby generating masses to the dark gauge bosons and dark fermions charged under the SU(2)$_{rm H}$. The lightest fermion in this dark SU(2)$_{rm H}$ sector can be a potential dark matter candidate. We first examine the viability of the model and constrain the model parameter space by theoretical constraints such as vacuum stability and by the experimental constraints such as PLANCK limit on relic density, LHC data, limits on spin independent scattering cross section from dark matter direct search experiments etc. We then investigate the gamma rays from the pair annihilation of the proposed dark matter candidate at the Galactic Centre region. We also extend our calculations of gamma rays flux for the case of dwarf galaxies and compare the signatures of gamma rays obtained from these astrophysical sites." @default.
- W630299562 created "2016-06-24" @default.
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- W630299562 date "2015-06-18" @default.
- W630299562 modified "2023-09-27" @default.
- W630299562 title "Possible Explanation of Indirect Gamma Ray Signatures from Hidden Sector SU(2)$_{rm H}$ Fermionic Dark Matter" @default.
- W630299562 hasPublicationYear "2015" @default.
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