Spherical cows in dark matter indirect detection

Uncertainties in Dark Matter Indirect Detection

Indirect Detection of Little Higgs Dark Matter

Little Higgs models with T parity contain an attractive dark matter candidate, the heavy photon. We compute the cross section of the heavy photon annihilation into Zphoton pairs, which turns out to be substantially higher than the previously computed cross section for the two photon final state. Unfortunately, even with this enhancement, the monochromatic photon flux from galactic heavy photon ...

The Indirect Detection of Halo Dark Matter

High energy particles are produced by the annihilation of dark matter particles in our galaxy. These are presently searched for using balloon-borne an-tiproton and positron detectors and large area, deep underground neutrino telescopes. Dark matter particles, trapped inside the sun, are an abundant source of such neutrinos. From both the cosmological and particle physics points of view the ligh...

Indirect detection of unstable heavy dark matter

Unstable relics with lifetime longer than the age of the Universe could be the dark matter today. Electrons, photons and neutrinos are a natural outcome of their decay and could be searched for in cosmic rays and in γ-ray and neutrino detectors. I compare the sensitivities of these three types of searches to the mass and lifetime of a generic unstable particle. I show that if the relics constit...

Status of indirect dark matter detection

Indirect astrophysical channels (such as gamma rays, neutrinos, and cosmic ray antimatter) are a cornerstone in the dark matter particle identification program. A review of the present constraints is presented, together with some perspectives for the near future: we argue that the approach of “fitting any spectral feature to a dark matter model” is unlikely to lead to a convincing indirect dete...