학술논문
Search for inelastic dark matter with the CDMS II experiment
Document Type
Working Paper
Author
CDMS Collaboration; Ahmed, Z.; Akerib, D. S.; Arrenberg, S.; Bailey, C. N.; Balakishiyeva, D.; Baudis, L.; Bauer, D. A.; Brink, P. L.; Bruch, T.; Bunker, R.; Cabrera, B.; Caldwell, D. O.; Cooley, J.; Silva, E. do Couto e; Cushman, P.; Daal, M.; DeJongh, F.; Di Stefano, P.; Dragowsky, M. R.; Duong, L.; Fallows, S.; Figueroa-Feliciano, E.; Filippini, J.; Fox, J.; Fritts, M.; Golwala, S. R.; Hall, J.; Hennings-Yeomans, R.; Hertel, S. A.; Holmgren, D.; Hsu, L.; Huber, M. E.; Kamaev, O.; Kiveni, M.; Kos, M.; Leman, S. W.; Liu, S.; Mahapatra, R.; Mandic, V.; McCarthy, K. A.; Mirabolfathi, N.; Moore, D.; Nelson, H.; Ogburn, R. W.; Phipps, A.; Pyle, M.; Qiu, X.; Ramberg, E.; Rau, W.; Razeti, M.; Reisetter, A.; Resch, R.; Saab, T.; Sadoulet, B.; Sander, J.; Schnee, R. W.; Seitz, D. N.; Serfass, B.; Sundqvist, K. M.; Tarka, M.; Wikus, P.; Yellin, S.; Yoo, J.; Young, B. A.; Zhang, J.
Source
Phys.Rev.D83:112002,2011
Subject
Language
Abstract
Results are presented from a reanalysis of the entire five-tower data set acquired with the Cryogenic Dark Matter Search (CDMS II) experiment at the Soudan Underground Laboratory, with an exposure of 969 kg-days. The analysis window was extended to a recoil energy of 150 keV, and an improved surface-event background-rejection cut was defined to increase the sensitivity of the experiment to the inelastic dark matter (iDM) model. Three dark matter candidates were found between 25 keV and 150 keV. The probability to observe three or more background events in this energy range is 11%. Because of the occurrence of these events the constraints on the iDM parameter space are slightly less stringent than those from our previous analysis, which used an energy window of 10-100 keV.
Comment: 10 pages, 10 figures, minor changes to match published version, conclusion unchanged
Comment: 10 pages, 10 figures, minor changes to match published version, conclusion unchanged