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Title: Photon spectra from WIMP annihilation

If the present dark matter in the Universe annihilates into standard model particles, it must contribute to the fluxes of cosmic rays that are detected on the Earth and, in particular, to the observed gamma-ray fluxes. The magnitude of such a contribution depends on the particular dark matter candidate, but certain features of the produced photon spectra may be analyzed in a rather model-independent fashion. In this work we provide the complete photon spectra coming from WIMP annihilation into standard model particle-antiparticle pairs obtained by extensive Monte Carlo simulations. We present results for each individual annihilation channel and provide analytical fitting formulas for the different spectra for a wide range of WIMP masses.
Authors:
 [1] ;  [2] ; ; ;  [3] ;  [4]
  1. William I. Fine Theoretical Physics Institute, University of Minnesota, Minneapolis, Minnesota 55455 (United States) and School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455 (United States)
  2. (Spain)
  3. Departamento de Fisica Teorica I, Universidad Complutense de Madrid, E-28040 Madrid (Spain)
  4. INFN sezione di Torino, I-10122 Torino, Italy and Dipartimento di Fisica Teorica, Universita di Torino, I-10122 Torino (Italy)
Publication Date:
OSTI Identifier:
21541448
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physical Review. D, Particles Fields; Journal Volume: 83; Journal Issue: 8; Other Information: DOI: 10.1103/PhysRevD.83.083507; (c) 2011 American Institute of Physics
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ANNIHILATION; ANTIPARTICLES; COMPUTERIZED SIMULATION; COSMIC RADIATION; GAMMA RADIATION; MASS; MONTE CARLO METHOD; NONLUMINOUS MATTER; PHOTONS; SPECTRA; STANDARD MODEL; UNIVERSE; WEAK INTERACTIONS ANTIMATTER; BASIC INTERACTIONS; BOSONS; CALCULATION METHODS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; FIELD THEORIES; GRAND UNIFIED THEORY; INTERACTIONS; IONIZING RADIATIONS; MASSLESS PARTICLES; MATHEMATICAL MODELS; MATTER; PARTICLE INTERACTIONS; PARTICLE MODELS; QUANTUM FIELD THEORY; RADIATIONS; SIMULATION; UNIFIED GAUGE MODELS