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Search for WeaklyInteracting MassiveParticles with theFirst Five-Tower Datafrom the CryogenicDark Matter Search atthe SoudanUndergroundLaboratory Zeeshan AhmedD. S. AkeribS. Arrenberg2009 год

Search for Weakly Interacting Massive Particles with the First Five-Tower Data from the Cryogenic Dark Matter Search at the Soudan Underground Laboratory
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Аннотация: We report first results from the Cryogenic Dark Matter Search (CDMS II) experiment running with its full complement of 30 cryogenic particle detectors at the Soudan Underground Laboratory. This report is based on the analysis of data acquired between October 2006 and July 2007 from 15 Ge detectors (3.75 kg), giving an effective exposure of 121.3 kg-d (averaged over recoil energies 10--100 keV, weighted for a weakly interacting massive particle (WIMP) mass of 60 \gev). A blind analysis, incorporating improved techniques for event reconstruction and data quality monitoring, resulted in zero observed events. This analysis sets an upper limit on the WIMP-nucleon spin-independent cross section of 6.6$\times10^{-44}$ cm$^2$ (4.6$\times10^{-44}$ cm$^2$ when combined with previous CDMS Soudan data) at the 90% confidence level for a WIMP mass of 60 \gev. By providing the best sensitivity for dark matter WIMPs with masses above 42 GeV/c$^2$, this work significantly restricts the parameter space for some of the favored supersymmetric models.
Год издания: 2009
Авторы: Zeeshan Ahmed, D. S. Akerib, S. Arrenberg, M. J. Attisha, C. N. Bailey, L. Baudis, D. Bauer, J. Beaty, P. L. Brink, T. Bruch, R. Bunker, S. Bürke, B. Cabrera, D. O. Caldwell, J. Cooley, P. Cushman, F. DeJongh, M. R. Dragowsky, L. Duong, J. Emes, E. Figueroa‐Feliciano, J. Filippini, M. Fritts, R. J. Gaitskell, S. R. Golwala, D. R. Grant, J. Hall, R. Hennings‐Yeomans, S. A. Hertel, D. Holmgren, M. E. Huber, R. Mahapatra, V. Mandic, K. A. McCarthy, N. Mirabolfathi, H. Nelson, L. Novák, R. W. Ogburn, M. Pyle, Xiaoxue Qiu, E. Ramberg, W. Rau, A. Reisetter, T. Saab, B. Sadoulet, J. Sander, R. Schmitt, R. W. Schnee, D. N. Seitz, B. Serfass, A. Sirois, K. M. Sundqvist, M. Tarka, A. Tomada, G. Wang, S. Yellin, J. Yoo, Betty Young
Издательство: American Physical Society
Источник: Physical Review Letters
Ключевые слова: Dark Matter and Cosmic Phenomena, Particle physics theoretical and experimental studies, Cosmology and Gravitation Theories
Другие ссылки: Physical Review Letters (HTML)
arXiv (Cornell University) (PDF)
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OSTI OAI (U.S. Department of Energy Office of Scientific and Technical Information) (HTML)
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CaltechAUTHORS (California Institute of Technology) (PDF)
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