Accès ouvert déclaré
2013
article
Dark Matter Search Results Using the Silicon Detectors of CDMS II
R. Agnese, Z. Ahmed, Adam J. Anderson, S. Arrenberg, D. Balakishiyeva, R. Basu Thakur, D. A. Bauer, Julien Billard, A. W. Borgland, D. Brandt, Paul L. Brink, T. Bruch, R. Bunker, Blas Cabrera, D. O. Caldwell, D. G. Cerdeño, Hassan Chagani, J. Cooley, Bruce A. Cornell, C. H. Crewdson, P. Cushman, M. Daal, F. DeJongh, E. do Couto e Silva, Timothy A. Doughty, Luis Mariano Esteban, S. Fallows, Enectali Figueroa-Feliciano, J. P. Filippini, J. Fox, M. Fritts, G. L. Godfrey, S. R. Golwala, Robert H. Harris, S. A. Hertel, T. Höfer, D. J. Holmgren, L. Hsu, M. E. Huber, A. Jastram, O. Kamaev, Burhan Kara, M. H. Kelsey, A. Kennedy, P. Kim, M. Kiveni, K. Koch, Marek Kos, S. W. Leman, B. Loer, E. Lopez Asamar, R. Mahapatra, V. Mandic, C. Moreno Martinez, Kathryn A. McCarthy, N. Mirabolfathi, R. A. Moffatt, David C. Moore, Philippe Nadeau, R. Nelson, K. Page, R. Partridge, M. Pepin, A. Phipps, K. Prasad, M. Pyle, Hongbo Qiu, W. Rau, P. Redl, A. Reisetter, Ylenia Ricci, T. Saab, B. Sadoulet, Jürgen W. Sander, K. Schneck, Richard W. Schnee, S. Scorza, B. Serfass, B. Shank, Danielle Speller, K. M. Sundqvist, A. N. Villano, Bradford Welliver, D. H. Wright, S. Yellin, J. J. Yen, Jonghee Yoo, Betty Young, Jinlong Zhang
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Le résumé fourni par la source
We report results of a search for Weakly Interacting Massive Particles (WIMPs) with the silicon detectors of the CDMS II experiment.A blind analysis of 140.2 kg-days of data revealed three WIMP-candidate events with an expected total background of 0.7 events.The probability that the known backgrounds would produce three or more events in the signal region is 5.4%.A profile likelihood ratio test of the three events that includes the measured recoil energies gives a 0.19% probability for the known-background-only hypothesis when tested against the alternative WIMP+background hypothesis.The highest likelihood occurs for a WIMP mass of 8.6 GeV/c 2 and WIMP-nucleon cross section of 1.9×10 -41 cm 2 .
Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.
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Les sujets associés
Dark Matter and Cosmic PhenomenaRadioactive Decay and Measurement TechniquesScientific Research and Discoveries