Direct and Indirect Detection of Dark Matter in D6 Flavor Symmetric Model

Abstract

We study a fermionic dark matter in a non-supersymmetric extension of the standard model with a family symmetry based on D6xZ2xZ2. In our model, the final state of the dark matter annihilation is determined to be e+ e- by the flavor symmetry, which is consistent with the PAMELA result. At first, we show that our dark matter mass should be within the range of 230 GeV - 750 GeV in the WMAP analysis combined with mu to e gamma constraint. Moreover we simultaneously explain the experiments of direct and indirect detection, by simply adding a gauge and D6 singlet real scalar field. In the direct detection experiments, we show that the lighter dark matter mass ~ 230 GeV and the lighter standard model Higgs boson ~ 115 GeV is in favor of the observed bounds reported by CDMS II and XENON100. In the indirect detection experiments, we explain the positron excess reported by PAMELA through the Breit-Wigner enhancement mechanism. We also show that our model is consistent with no antiproton excess suggested by PAMELA.

20 pages, 9 figures, 2 tables, accepted version for publication in European Physical Journal C

References in corpus (16)

• Observation of an anomalous positron abundance in the cosmic radiation
• Measurement of the Cosmic Ray e+ plus e- spectrum from 20 GeV to 1 TeV with the Fermi Large Area Telescope
• A new measurement of the antiproton-to-proton flux ratio up to 100 GeV in the cosmic radiation
• PAMELA Positron Excess as a Signal from the Hidden Sector
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• Dark Matter: The Leptonic Connection
• Neutrino masses and CDM in a non-supersymmetric model
• D4 Flavor Symmetry for Neutrino Masses and Mixing
• Soft supersymmetry breaking terms from D4 x Z2 lepton flavor symmetry
• The discrete flavor symmetry D5
• Universally Leptophilic Dark Matter From Non-Abelian Discrete Symmetry
• theta_C from the Dihedral Flavor Symmetries D_7 and D_14
• Quark and lepton mixing angles with a dodeca-symmetry
• D6 Family Symmetry and Cold Dark Matter at LHC
• A_4-based neutrino masses with Majoron decaying dark matter

Cited by in corpus (7)

• The low-scale approach to neutrino masses
• Direct Detection of Leptophilic Dark Matter in a Model with Radiative Neutrino Masses
• Connecting neutrino physics with dark matter
• 3.5 keV X-ray Line Signal from Decay of Right-Handed Neutrino due to Transition Magnetic Moment
• Super Flavorsymmetry with Multiple Higgs Doublets
• Revisiting Discrete Dark Matter Model:θ_{13}\neq0 and ν_{R} Dark Matter
• Symmetryless Dark Matter