Light Dark Matter in the light of CRESST-II

Details Light Dark Matter in the light of CRESST-II Light Dark Matter in the light of CRESST-II

2011-10-12

arxiv.org/abs/1110.2721v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

20 pages, 6 figures, 1 table

Scientific paper

Recently the CRESST collaboration has published the long anticipated results of their direct Dark Matter (DM) detection experiment with a CaWO_4 target. The number of observed events exceeds known backgrounds at more than 4 sigma significance, and this excess could potentially be due to DM scattering. We confront this interpretation with null results from other direct detection experiments for a number of theoretical models, and find that consistency is achieved in non-minimal models such as inelastic DM and isospin-violating DM. In both cases mild tension with constraints remain. The CRESST data can, however, not be reconciled with the null results and with the positive signals from DAMA and CoGeNT simultaneously in any of the models we study.

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