Understand
Recently, several astrophysical data or would-be signals has been observed in different dark-matter oriented experiments.
- In each case, one could fit the data at the price of specific nature of the coupling between the Standard Model (SM) particles and a light Dark Matter candidate: hadrophobic (INTEGRAL, PAMELA) or leptophobic (WMAP Haze, dijet anomalies of CDF, FERMI Galactic Center observation).
- In this work, we show that when one takes into account the more recent LEP and Tevatron analysis, a light thermal fermionic Dark Matte (\lesssim 10 GeV) that couples to electrons is mainly ruled out if one combines the analysis with WMAP constraints.
- We also study the special case of scalar dark matter, using a mono-photon events simulation to constrain the coupling of dark matter to electron.