Excluding Light Asymmetric Bosonic Dark Matter

Details Excluding Light Asymmetric Bosonic Dark Matter Excluding Light Asymmetric Bosonic Dark Matter

2011-04-03

arxiv.org/abs/1104.0382v2

Phys. Rev. Lett. 107, 091301 (2011)

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

published version

Scientific paper

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.

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