Phys. Rev. D
68,
082002
(2003)
[4 pages]
New results from the Cryogenic Dark Matter Search experiment
D. S. Akerib et al. (CDMS Collaboration)
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D. S. Akerib2, J. Alvaro-Dean10, M. S. Armel10, M. J. Attisha1, L. Baudis9, D. A. Bauer11, A. I. Bolozdynya2, P. L. Brink9, R. Bunker11, B. Cabrera9, D. O. Caldwell11, J. P. Castle9, C. L. Chang9, R. M. Clarke9, M. B. Crisler3, P. Cushman8, A. K. Davies9, R. Dixon3, D. D. Driscoll2, L. Duong8, J. Emes4, R. Ferril11, R. J. Gaitskell1, S. R. Golwala10, M. Haldeman3, J. Hellmig10, M. Hennessey9, D. Holmgren3, M. E. Huber12, S. Kamat2, M. Kurylowicz9, A. Lu10, R. Mahapatra11, V. Mandic10, J. M. Martinis5, P. Meunier10, N. Mirabolfathi10, S. W. Nam9, H. Nelson11, R. Nelson11, R. W. Ogburn9, J. Perales9, T. A. Perera2, M. C. Perillo Isaac10, W. Rau10, A. Reisetter8, R. R. Ross4,10,*, T. Saab9, B. Sadoulet4,10, J. Sander11, C. Savage11, R. W. Schnee2, D. N. Seitz10, T. A. Shutt6, G. Smith10, A. L. Spadafora10, J.-P. F. Thompson1, A. Tomada9, G. Wang2, S. Yellin11, and B. A. Young7 (CDMS Collaboration)
1Department of Physics, Brown University, Providence, Rhode Island 02912, USA 2Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, USA 3Fermi National Accelerator Laboratory, Batavia, Illinois 60510, USA 4Lawrence Berkeley National Laboratory, Berkeley, California 94720, USA 5National Institute of Standards and Technology, Boulder, Colorado 80303, USA 6Department of Physics, Princeton University, Princeton, New Jersey 08544, USA 7Department of Physics, Santa Clara University, Santa Clara, California 95053, USA 8School of Physics & Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA 9Department of Physics, Stanford University, Stanford, California 94305, USA 10Department of Physics, University of California, Berkeley, California 94720, USA 11Department of Physics, University of California, Santa Barbara, California 93106, USA 12Department of Physics, University of Colorado at Denver, Denver, Colorado 80217, USA
Received 2 June 2003; published 31 October 2003
Using improved Ge and Si detectors, better neutron shielding, and increased counting time, the Cryogenic Dark Matter Search (CDMS) experiment has obtained stricter limits on the cross section of weakly interacting massive particles (WIMPs) elastically scattering from nuclei. Increased discrimination against electromagnetic backgrounds and reduction of the neutron flux confirm WIMP-candidate events previously detected by CDMS were consistent with neutrons and give limits on spin-independent WIMP interactions which are >2× lower than previous CDMS results for high WIMP mass, and which exclude new parameter space for WIMPs with mass between 8 and 20GeV/c2.
© 2003 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevD.68.082002
DOI:
10.1103/PhysRevD.68.082002
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