Results from the 1998–1999 runs of the cryogenic dark matter search
| Autor: | M. S. Armel-Funkhouser, P. Meunier, V. Mandi, Thushara Perera, S. J. Yellin, A. R. Smith, G. Wang, Tarek Saab, C. L. Chang, Donald J. Holmgren, J. P. Castle, S. Eichblatt, Betty A. Young, Ronald R. Ross, M. B. Crisler, W. Rau, A. H. Sonnenschein, R. J. Gaitskell, David S. Abrams, Alexander Bolozdynya, J. Sander, Sae Woo Nam, Martin E. Huber, John M. Martinis, D. A. Bauer, P. L. Brink, J. Hellmig, D. D. Driscoll, A. Lu, R. Bunker, R. L. Dixon, Blas Cabrera, R. W. Schnee, H. N. Nelson, Sunil Golwala, S. Kamat, Laura Baudis, D. S. Akerib, T. A. Shutt, M. C. Perillo Isaac, R. M. Clarke, Bernard Sadoulet, A. L. Spadafora, D. O. Caldwell, E. E. Haller |
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| Rok vydání: | 2003 |
| Předmět: |
Physics
Nuclear and High Energy Physics Particle physics Physics::Instrumentation and Detectors Astrophysics::Instrumentation and Methods for Astrophysics Elementary particle Astrophysics::Cosmology and Extragalactic Astrophysics Atomic and Molecular Physics and Optics Nuclear physics WIMP Weakly interacting massive particles Atomic nucleus Warm dark matter Cryogenic Dark Matter Search Halo Light dark matter |
| Zdroj: | Nuclear Physics B - Proceedings Supplements. 124:185-188 |
| ISSN: | 0920-5632 |
| Popis: | The Cryogenic Dark Matter Search (CDMS) uses low-temperature Ge and Si detectors to search for Weakly Interacting Massive Particles (WIMPs) via their elastic-scattering interaction with atomic nuclei while discriminating against interactions of background particles. CDMS data from 1998 and 1999 with a relaxed fiducial-volume cut (resulting in 15.8 kg-days exposure on Ge) are consistent with an earlier analysis with a more restrictive fiducial-volume cut. Twenty-three WIMP candidate events are observed, but these events are consistent with a background from neutrons. Resulting limits on the spin-independent WIMP-nucleon elastic-scattering cross-section are lower than those of any other experiment for WIMPs with masses between 10–70 GeV c −2 . Under the assumptions of standard WIMP interactions and a standard halo, the results are incompatible with the annual-modulation signal of DAMA at 99.99% CL in the asymptotic limit. |
| Databáze: | OpenAIRE |
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