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Phys. Rev. Lett. 85, 5292–5295 (2000)

Improved Experimental Limits on the Production of Magnetic Monopoles

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G. R. Kalbfleisch*, K. A. Milton, M. G. Strauss, L. Gamberg, E. H. Smith, and W. Luo
Department of Physics and Astronomy, University of Oklahoma, Norman, Oklahoma 73019

Received 4 May 2000; published in the issue dated 18 December 2000

We present new limits on low mass accelerator-produced pointlike Dirac magnetic monopoles trapped and bound in matter surrounding the D0 collision region of the Tevatron at Fermilab (experiment E-882). In the context of a Drell-Yan mechanism, we obtain cross section limits for the production of monopoles with magnetic charge values of 1, 2, 3, and 6 times the minimum Dirac charge of the order of picobarns, some 100 times smaller than found in similar previous Fermilab searches. Mass limits inferred from these cross section limits are presented.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.85.5292
DOI:
10.1103/PhysRevLett.85.5292
PACS:
14.80.Hv, 07.55.-w, 13.85.Rm

*Electronic address: grk@mail.nhn.ou.edu

Present address: Lockheed Martin, Palo Alto, CA 94304.