Excluding Light Asymmetric Bosonic Dark Matter

Preprint number: CP3-Origins-2011-12
Authors: Chris Kouvaris (CP3-Origins) and Peter Tinyakov (Universite Libre de Bruxelles)
External link: arXiv.org

Share this pageShare on FacebookTweet about this on TwitterShare on LinkedInGoogle+

We argue that current neutron star observations exclude asymmetric bosonic non-interacting dark matter in the range from 2 keV to 16 GeV, including the 5-15 GeV range favored by DAMA and CoGeNT. If bosonic WIMPs are composite of fermions, the same limits apply provided the compositeness scale is higher than ~10^12 GeV (for WIMP mass ~1 GeV). In case of repulsive self-interactions, we exclude large range of WIMP masses and interaction cross sections which complements the constraints imposed by observations of the Bullet Cluster.