WMAP, Planck, and CVL 1-sigma constraints on the ⟨ σAυ ⟩ − mDM plane for μ (upper panel) and e (lower panel) annihilation channels. The solid lines show the upper bounds on annihilation cross section as determined directly through full MCMC calculations. The shaded regions around solid lines show the results from the simple recipe of Eq. (1) with values of r taken from Table 1. The vertical gray stripe shows the range of WIMP masses (mDM = 6 − 8 GeV) that provide a good fit to CoGeNT and DAMA/LIBRA data (Hooper et al. 2010). The vertical dotted line marks the lowest DM particle mass 5 GeV available for PYTHIA simulations. Extrapolations are shown below that value.
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