Revisiting simplified dark matter models in terms of AMS-02 and Fermi-LAT

Abstract

We perform an analysis of the simplified dark matter models in the light of cosmic ray observables by AMS-02 and Fermi-LAT. We assume fermion, scalar or vector dark matter particle with a leptophobic spin-0 mediator that couples only to Standard Model quarks and dark matter via scalar and/or pseudo-scalar bilinear. The propagation and injection parameters of cosmic rays are determined by the observed fluxes of nuclei from AMS-02. We find that the AMS-02 observations are consistent with the dark matter framework within the uncertainties. The AMS-02 antiproton data prefer 30 (50) GeV - 5 TeV dark matter mass and require an effective annihilation cross section in the region of 4x10^{-27} (7x10^{-27}) - 4x10^{-24} cm^3/s for the simplified fermion (scalar and vector) dark matter models. The cross sections below 2x10^{-26} cm^3/s can evade the constraint from Fermi-LAT dwarf galaxies for about 100 GeV dark matter mass.

20 pages, 8 figures, 2 tables. arXiv admin note: text overlap with arXiv:1612.09501

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Cited by in corpus (6)

• Scrutinizing the evidence for dark matter in cosmic-ray antiprotons
• Cosmic-ray Antinuclei as Messengers of New Physics: Status and Outlook for the New Decade
• Unveiling Hidden Physics at the LHC
• Revisiting the direct detection of dark matter in simplified models
• Simplified dark matter models with loop effects in direct detection and the constraints from indirect detection and collider search
• Connecting multi-lepton anomalies at the LHC and in Astrophysics with MeerKAT/SKA