Phys. Rev. Lett.
103,
141802
(2009)
[5 pages]
Search for Axions with the CDMS Experiment
Z. Ahmed et al. CDMS Collaboration
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Z. Ahmed1, D. S. Akerib2, S. Arrenberg17, C. N. Bailey2, D. Balakishiyeva15, L. Baudis17, D. A. Bauer3, J. Beaty16, P. L. Brink9, T. Bruch17, R. Bunker13, B. Cabrera9, D. O. Caldwell13, J. Cooley9, P. Cushman16, F. DeJongh3, M. R. Dragowsky2, L. Duong16, E. Figueroa-Feliciano5, J. Filippini12,1, M. Fritts16, S. R. Golwala1, D. R. Grant2, J. Hall3, R. Hennings-Yeomans2, S. Hertel5, D. Holmgren3, L. Hsu3, M. E. Huber14, O. Kamaev16, M. Kiveni10, M. Kos10, S. W. Leman5, R. Mahapatra11, V. Mandic16, D. Moore1, K. A. McCarthy5, N. Mirabolfathi12, H. Nelson13, R. W. Ogburn9,1, M. Pyle9, X. Qiu16, E. Ramberg3, W. Rau6, A. Reisetter7,16, T. Saab15, B. Sadoulet4,12, J. Sander13, R. W. Schnee10, D. N. Seitz12, B. Serfass12, K. M. Sundqvist12, M. Tarka17, G. Wang1, S. Yellin9,13, J. Yoo3, and B. A. Young8 (CDMS Collaboration)
1Department of Physics, California Institute of Technology, Pasadena, California 91125, 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 5Department of Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA 6Department of Physics, Queen’s University, Kingston, Ontario, Canada, K7L 3N6 7Department of Physics, Saint Olaf College, Northfield, Minnesota 55057, USA 8Department of Physics, Santa Clara University, Santa Clara, California 95053, USA 9Department of Physics, Stanford University, Stanford, California 94305, USA 10Department of Physics, Syracuse University, Syracuse, New York 13244, USA 11Department of Physics, Texas A&M University, College Station, Texas 93106, USA 12Department of Physics, University of California, Berkeley, California 94720, USA 13Department of Physics, University of California, Santa Barbara, California 93106, USA 14Departments of Physics and Electrical Engineering, University of Colorado Denver, Denver, Colorado 80217, USA 15Department of Physics, University of Florida, Gainesville, Florida 32611, USA 16School of Physics and Astronomy, University of Minnesota, Minneapolis, Minnesota 55455, USA 17Physics Institute, University of Zürich, Zürich, Switzerland
Received 5 March 2009; published 1 October 2009
We report on the first axion search results from the Cryogenic Dark Matter Search (CDMS) experiment at the Soudan Underground Laboratory. An energy threshold of 2 keV for electron-recoil events allows a search for possible solar axion conversion into photons or local galactic axion conversion into electrons in the germanium crystal detectors. The solar axion search sets an upper limit on the Primakov coupling gaγγ of 2.4×10-9 GeV-1 at the 95% confidence level for an axion mass less than 0.1 keV/c2. This limit benefits from the first precise measurement of the absolute crystal plane orientations in this type of experiment. The galactic axion search analysis sets a world-leading experimental upper limit on the axioelectric coupling gae̅ e of 1.4×10-12 at the 90% confidence level for an axion mass of 2.5 keV/c2.
© 2009 The American Physical Society
URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.141802
DOI:
10.1103/PhysRevLett.103.141802
PACS:
14.80.Mz, 29.40.−n, 95.30.Cq, 95.35.+d
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