Bayes and present dark matter direct search status

Abstract

Recently there has been a huge activity in the dark matter direct detection field, with the report of an excess from CoGeNT and CRESST along with the annual modulated signal of DAMA/Libra and the strong exclusion bound from XENON100. We analyse these results within the framework of Bayesian inference and evidence. Indeed Bayesian methods are well suited for marginalizing over experimental systematics and background. We present the results for spin-independent interaction on nucleus with particular attention to the low dark matter mass region and the compatibility between experiments. In the same vein we also investigate the impact of astrophysical uncertainties on the WIMP preferred parameter space within the class of isotropic dark matter velocity distributions.

4 pages, 1 figure, to appear in the proceedings of the TAUP 2011 conference held in Munich (5 - 9 September, 2011)

References in corpus (7)

• Bayes in the sky: Bayesian inference and model selection in cosmology
• First results from DAMA/LIBRA and the combined results with DAMA/NaI
• Dark Matter Results from 100 Live Days of XENON100 Data
• Search for an Annual Modulation in a P-type Point Contact Germanium Dark Matter Detector
• Measuring the effective complexity of cosmological models
• Likelihood Approach to the First Dark Matter Results from XENON100
• A Bayesian view of the current status of dark matter direct searches

Cited by in corpus (2)

• Chasing a consistent picture for dark matter direct searches
• Bayesian Approach for Counting Experiment Statistics applied to a Neutrino Point Source Analysis