Results from the Super Cryogenic Dark Matter Search (SuperCDMS) experiment at Soudan

R. Agnese,T. Aramaki,I. J. Arnquist,W. Baker, D. Balakishiyeva,S. Banik,D. Barker,R. Basu Thakur,D. A. Bauer,T. Binder,M. A. Bowles,P. L. Brink,R. Bunker, B. Cabrera,David O. Caldwell,R. Calkins,C. Cartaro,D. G. Cerdeno, Y.-Y. Chang,Yan Chen,J. Cooley,B. Cornell, P. Cushman, M. Daal,P. Di Stefano, T. Doughty, E. Fascione, E. Figueroa-Feliciano,M. Fritts,G. Gerbier,R. Germond,M. Ghaith,G. Godfrey, S. R. Golwala,J. Hall,H. R. Harris, Z. Hong,E. W. Hoppe,L. Hsu,M. E. Huber,V. Iyer, D. Jardin,A. Jastram,C. Jena,M. H. Kelsey,A. Kennedy,A. Kubik,N. A. Kurinsky,B. Loer,E. Lopez Asamar, P. Lukens, D. MacDonell,R. Mahapatra,V. Mandic, N. Mast,E. H. Miller, N. Mirabolfathi,B. Mohanty,J. D. Morales Mendoza,J. K. Nelson,John L. Orrell,S. M. Oser,Kim L. Page, W. A. Page, R. Partridge,M. Penalver Martinez,M. Pepin,A. Phipps,S. Poudel, M. Pyle,H. Qiu,W. Rau,P. Redl, A. Reisetter,T. Reynolds, A. Roberts,A. E. Robinson, H. E. Rogers,T. Saab, B. Sadoulet,J. Sander, K. Schneck, R. W. Schnee, S. Scorza,K. Senapati, B. Serfass,D. Speller,M. Stein,J. Street,H. A. Tanaka,D. Toback,R. Underwood,A. N. Villano,B. von Krosigk,B. Welliver,J. S. Wilson,M.J. Wilson, D. H. Wright, S. Yellin

arXiv: High Energy Physics - Experiment（2017）

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摘要

We report the result of a blinded search for weakly interacting massive particles (WIMPs) using the majority of the SuperCDMS Soudan data set. With an exposure of 1690 kg d, a single candidate event is observed, consistent with expected backgrounds. This analysis (combined with previous Ge results) sets an upper limit on the spin-independent WIMP–nucleon cross section of 1.4 × 10^(−44) (1.0 × 10^(−44) cm^2 at 46 GeV/c^2. These results set the strongest limits for WIMP–germanium-nucleus interactions for masses u003e 12 GeV/c^2.

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