Indirect Dark Matter Searches in the Light of ATIC, FERMI, EGRET and PAMELA

Recently, new data on antiprotons and positrons from PAMELA, e(-)+e(+) spectra from ATIC, FERMI and HESS up to TeV energies all indicate deviations from expectations, which has caused an interesting mix of new explanations, ranging from background, standard astrophysical sources to signals from dark matter (DM) annihilation Unfortunately, the excess in positrons is not matched with obvious excesses in antiprotons or gamma rays, so a new class of DM scenarios with "leptophilic" WIMP candidates have been invoked On the other hand, the increase in the positron fraction, which could have had any spectral shape for new physics, matches well the shape expected from proton background