First Dark Matter Results from the XENON100 Experiment
Abstract
The XENON100 experiment, in operation at the Laboratori Nazionali del Gran Sasso in Italy, is designed to search for dark matter WIMPs scattering off 62 kg of liquid xenon in an ultra-low background dual-phase time projection chamber. In this letter, we present first dark matter results from the analysis of 11.17 live days of non-blind data, acquired in October and November 2009. In the selected fiducial target of 40 kg, and within the pre-defined signal region, we observe no events and hence exclude spin-independent WIMP-nucleon elastic scattering cross-sections above 3.4 x 10^-44 cm^2 for 55 GeV/c^2 WIMPs at 90% confidence level. Below 20 GeV/c^2, this result constrains the interpretation of the CoGeNT and DAMA signals as being due to spin-independent, elastic, light mass WIMP interactions.
Cite
@article{arxiv.1005.0380,
title = {First Dark Matter Results from the XENON100 Experiment},
author = {The XENON100 Collaboration and E. Aprile and K. Arisaka and F. Arneodo and A. Askin and L. Baudis and A. Behrens and E. Brown and J. M. R. Cardoso and B. Choi and D. B. Cline and S. Fattori and A. D. Ferella and K. -L. Giboni and K. Hugenberg and A. Kish and C. W. Lam and J. Lamblin and R. F. Lang and K. E. Lim and J. A. M. Lopes and T. Marrodán Undagoitia and Y. Mei and A. J. Melgarejo Fernandez and K. Ni and U. Oberlack and S. E. A. Orrigo and E. Pantic and G. Plante and A. C. C. Ribeiro and R. Santorelli and J. M. F. dos Santos and M. Schumann and P. Shagin and A. Teymourian and D. Thers and E. Tziaferi and H. Wang and C. Weinheimer},
journal= {arXiv preprint arXiv:1005.0380},
year = {2011}
}
Comments
5 pages, 5 figures. Matches published version