Search for inelastic dark matter with the CDMS II experiment

Z. Ahmed, D. S. Akerib, S. Arrenberg*, C. N. Bailey, D. Balakishiyeva, L. Baudis, D. A. Bauer, P. L. Brink, T. Bruch, R. Bunker, B. Cabrera, D. O. Caldwell, J. Cooley, E. Do Couto E Silva, P. Cushman, M. Daal, F. Dejongh, P. Di Stefano, M. R. Dragowsky, L. DuongS. Fallows, E. Figueroa-Feliciano, J. Filippini, J. Fox, M. Fritts, S. R. Golwala, J. Hall, R. Hennings-Yeomans, S. A. Hertel, D. Holmgren, L. Hsu, M. E. Huber, O. Kamaev, M. Kiveni, M. Kos, S. W. Leman, S. Liu, R. Mahapatra, V. Mandic, K. A. McCarthy, N. Mirabolfathi, D. Moore, H. Nelson, R. W. Ogburn, A. Phipps, M. Pyle, X. Qiu, E. Ramberg, W. Rau, M. Razeti, A. Reisetter, R. Resch, T. Saab, B. Sadoulet, J. Sander, R. W. Schnee, D. N. Seitz, B. Serfass, K. M. Sundqvist, M. Tarka, P. Wikus, S. Yellin, J. Yoo, B. A. Young, J. Zhang

*Corresponding author for this work

Research output: Contribution to journalArticle

22 Scopus citations

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.

Original languageEnglish (US)
Article number112002
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume83
Issue number11
DOIs
StatePublished - Jun 1 2011

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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    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., Do Couto E Silva, E., Cushman, P., Daal, M., Dejongh, F., Di Stefano, P., Dragowsky, M. R., ... Zhang, J. (2011). Search for inelastic dark matter with the CDMS II experiment. Physical Review D - Particles, Fields, Gravitation and Cosmology, 83(11), [112002]. https://doi.org/10.1103/PhysRevD.83.112002