Muon Flux Limits for Majorana Dark Matter Particles

Abstract

We analyze the effects of capture of dark matter (DM) particles, with successive annihilations, predicted in the minimal walking technicolor model (MWT) by the Sun and the Earth. We show that the Super-Kamiokande (SK) upper limit on excessive muon flux disfavors the mass interval between 100-200 GeV for MWT DM with a suppressed Standard Model interaction (due to a mixing angle), and the mass interval between 0-1500 GeV for MWT DM without such suppression, upon making the standard assumption about the value of the local DM distribution. In the first case, the exclusion interval is found to be very sensitive to the DM distribution parameters and can vanish at the extreme of the acceptable values.

20 pages, 12 figures. The revised version has minor addition (without change of the result) as the following: 1) Comparison of our estimations with analogous previous ones is included in the Figure 7; a paragraph regarding it was added in Discussion. 2) The Introduction, Acknowledgements and References have been a little extended

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• Conformal Window of Gauge Theories with Four-Fermion Interactions and Ideal Walking
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• Search for GeV-scale Dark Matter Annihilation in the Sun with IceCube DeepCore
• Search for neutrino emission from relic dark matter in the Sun with the Baikal NT200 detector
• Neutrino signals from electroweak bremsstrahlung in solar WIMP annihilation
• The Dark Sequential Z' Portal: Collider and Direct Detection Experiments
• A mass-dependent beta-function
• Decaying Dark Atom constituents and cosmic positron excess
• Linear confinement without dilaton in bottom-up holography for walking technicolour
• WIMP capture and annihilation in the Earth in effective theories
• Cosmological Constant in a Model with Superstring-Inspired E_6 Unification and Shadow Theta-Particles
• On the Role of Neutrinos Telescopes in the Search for Dark Matter Annihilations in the Sun
• Quasiconformality and mass
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• Phase Diagrams of Strongly Interacting Theories
• Invisible Higgs and Dark Matter
• Neutrinos from captured dark matter in galactic stars
• Interpreting the bounds on Solar Dark Matter induced muons at Super-Kamiokande in the light of CDMS results
• Searching for Dark Matter Annihilation to Monoenergetic Neutrinos with Liquid Scintillation Detectors
• Constraints on Majorana Dark Matter from a Fourth Lepton Family