Limits on Spin-Dependent WIMP-Nucleon Cross Sections from the XENON10 Experiment

J. Angle, E. Aprile, F. Arneodo, L. Baudis, A. Bernstein, A. Bolozdynya, L. C. C. Coelho, C. E. Dahl, L. DeViveiros, A. D. Ferella, L. M. P. Fernandes, S. Fiorucci (+24 others)
2008 Physical Review Letters  
XENON10 is an experiment to directly detect weakly interacting massive particle (WIMPs), which may comprise the bulk of the non-baryonic dark matter in our Universe. We report new results for spin-dependent WIMP-nucleon interactions with 129-Xe and 131-Xe from 58.6 live-days of operation at the Laboratori Nazionali del Gran Sasso (LNGS). Based on the non-observation of a WIMP signal in 5.4 kg of fiducial liquid xenon mass, we exclude previously unexplored regions in the theoretically allowed
more » ... ameter space for neutralinos. We also exclude a heavy Majorana neutrino with a mass in the range of 10 GeV -2 TeV as a dark matter candidate under standard assumptions for its density and distribution in the galactic halo.
doi:10.1103/physrevlett.101.091301 pmid:18851599 fatcat:litpmzaxd5awxcraui62xwz44q