Silicon detector results from the first five-tower run of CDMS II
Abstract
We report results of a search for Weakly Interacting Massive Particles (WIMPs) with the Si detectors of the CDMS II experiment. This report describes a blind analysis of the first data taken with CDMS II's full complement of detectors in 2006-2007; results from this exposure using the Ge detectors have already been presented. We observed no candidate WIMP-scattering events in an exposure of 55.9 kg-days before analysis cuts, with an expected background of ~1.1 events. The exposure of this analysis is equivalent to 10.3 kg-days over a recoil energy range of 7-100 keV for an ideal Si detector and a WIMP mass of 10 GeV/c2. These data set an upper limit of 1.7x10-41 cm2 on the WIMP-nucleon spin-independent cross section of a 10 GeV/c2 WIMP. These data exclude parameter space for spin-independent WIMP-nucleon elastic scattering that is relevant to recent searches for low-mass WIMPs.
Keywords
Cite
@article{arxiv.1304.3706,
title = {Silicon detector results from the first five-tower run of CDMS II},
author = {CDMS Collaboration and R. Agnese and Z. Ahmed and A. J. Anderson and S. Arrenberg and D. Balakishiyeva and R. Basu Thakur and D. A. Bauer and A. Borgland and D. Brandt and P. L. Brink and T. Bruch and R. Bunker and B. Cabrera and D. O. Caldwell and D. G. Cerdeno and H. Chagani and J. Cooley and B. Cornell and C. H. Crewdson and P. Cushman and M. Daal and F. Dejongh and P. C. F. Di Stefano and E. do Couto e Silva and T. Doughty and L. Esteban and S. Fallows and E. Figueroa-Feliciano and J. Filippini and J. Fox and M. Fritts and G. L. Godfrey and S. R. Golwala and J. Hall and R. H. Harris and S. A. Hertel and T. Hofer and D. Holmgren and L. Hsu and M. E. Huber and A. Jastram and O. Kamaev and B. Kara and M. H. Kelsey and A. Kennedy and P. Kim and M. Kiveni and K. Koch and M. Kos and S. W. Leman and E. Lopez-Asamar and R. Mahapatra and V. Mandic and C. Martinez and K. A. McCarthy and N. Mirabolfathi and R. A. Moffatt and D. C. Moore and P. Nadeau and R. H. Nelson and K. Page and R. Partridge and M. Pepin and A. Phipps and K. Prasad and M. Pyle and H. Qiu and W. Rau and P. Redl and A. Reisetter and Y. Ricci and T. Saab and B. Sadoulet and J. Sander and K. Schneck and R. W. Schnee and S. Scorza and B. Serfass and B. Shank and D. Speller and K. M. Sundqvist and A. N. Villano and B. Welliver and D. H. Wright and S. Yellin and J. J. Yen and J. Yoo and B. A. Young and J. Zhan},
journal= {arXiv preprint arXiv:1304.3706},
year = {2013}
}
Comments
5 pages, 4 figures; updated to match published version