Extending the CRESST-II commissioning run limits to lower masses

Details Extending the CRESST-II commissioning run limits to lower masses Extending the CRESST-II commissioning run limits to lower masses

2011-09-12

arxiv.org/abs/1109.2589v2

Phys.Rev.D85:021301,2012

Astronomy and Astrophysics

Astrophysics

Cosmology and Extragalactic Astrophysics

4 pages, 4 figures

Scientific paper

10.1103/PhysRevD.85.021301

Motivated by the recent interest in light WIMPs of mass ~O(10 GeV), an extension of the elastic, spin-independent WIMP-nucleon cross-section limits resulting from the CRESST-II commissioning run (2007) are presented. Previously, these data were used to set cross-section limits from 1000 GeV down to ~17 GeV, using tungsten recoils, in 47.9 kg-days of exposure of calcium tungstate. Here, the overlap of the oxygen and calcium bands with the acceptance region of the commissioning run data set is reconstructed using previously published quenching factors. The resulting elastic WIMP cross section limits, accounting for the additional exposure of oxygen and calcium, are presented down to 5 GeV.

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