Bibcode
Cannoni, M.; Gómez, M. E.; Sánchez-Conde, M. A.; Prada, F.; Panella, O.
Bibliographical reference
Physical Review D, vol. 81, Issue 10, id. 107303
Advertised on:
5
2010
Journal
Citations
18
Refereed citations
15
Description
We present a detailed study of the effect of internal bremsstrahlung
photons in the context of the minimal supersymmetric standard models and
their impact on γ-ray dark matter annihilation searches. We find
that, although this effect has to be included for the correct evaluation
of fluxes of high energy photons from neutralino annihilation, its
contribution is relevant only in models and at energies where the lines
contribution is dominant over the secondary photons. Therefore, we find
that the most optimistic supersymmetric scenarios for dark matter
detection do not change significantly when including the internal
bremsstrahlung. As an example, we review the γ-ray dark matter
detection prospects of the Draco dwarf spheroidal galaxy for the MAGIC
stereoscopic system and the CTA project. Though the flux of high energy
photons is enhanced by an order of magnitude in some regions of the
parameter space, the expected fluxes are still much below the
sensitivity of the instruments.