Search for Magnetic Monopoles in Lunar Material Using an Electromagnetic Detector

Ross, R. R.; Eberhard, Philippe; Alvarez, Luis W.; Watt, Robert D.

doi:10.1103/physrevd.8.698

Cited by 59 publications

(44 citation statements)

References 6 publications

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“…Many years later my colleague in Oklahoma, George Kalbfleisch, asked me to join him in a new experiment to set limits on monopole masses based on Fermilab experiments [20,21]. His interest grew out of that of his mentor Luis Alvarez, who had set one of the best earlier limits on low-mass monopoles [22,23,24,25,26]. Thus, I believe I possess the bona fides to present this review.…”

Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Status of Magnetic Monopoles

Milton

Kalbfleisch

Luo

2002

Int. J. Mod. Phys. A

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Abstract. The Tevatron has inspired new interest in the subject of magnetic monopoles. First there was the 1998 D0 limit on the virtual production of monopoles, based on the theory of Ginzburg and collaborators. In 2000 and 2004 results from an experiment (Fermilab E882) searching for real magnetically charged particles bound to elements from the CDF and D0 detectors were reported. The strongest direct experimental limits, from the CDF collaboration, have been reported in 2005. Less strong, but complementary, limits from the H1 collaboration at HERA were reported in the same year. Interpretation of these experiments also require new developments in theory. Earlier experimental and observational constraints on point-like (Dirac) and non-Abelian monopoles were given from the 1970s through the 1990s, with occasional short-lived positive evidence for such exotic particles reported. The status of the experimental limits on monopole masses will be reported, as well as the limitation of the theory of magnetic charge at present.

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Section: Introductionmentioning

confidence: 99%

Theoretical and Experimental Status of Magnetic Monopoles

Milton

Kalbfleisch

Luo

2002

Int. J. Mod. Phys. A

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“…These cross section limits are some 250 to 2500 times smaller and the mass limits are about 3 times larger than those of Bertani et al [13], and a significant improvement over those of Ross et al [17], as well. This appendix describes the basis of the functioning of our magnetic monopole dectector.…”

Section: Discussionmentioning

confidence: 64%

“…We have improved the cross-section and mass limits on directly produced magnetic monopoles over the best previous other limits of Bertani et al [13] and the lunar rock limits of Ross et al [17]. We have improved and extended our own prior limits from D0 samples [18] to those from CDF, with a consistent overall analysis, presented in this paper.…”

Section: Discussionmentioning

confidence: 79%

“…If they exist, monopoles will presumably be abundant, or can be pair-produced by some appropriate mechanism, and be trapped in matter. Previous (direct) searches for trapped and bound magnetic monopoles in various accelerator samples [4,5,6,7,8,9,10,11,12,13,14,15], in meteorites [16], and lunar soil [17], as well as an earlier result [18,19] from this experiment have been made. Other (indirect) searches by other methods are not covered in this paper, but are reviewed elsewhere [19,20].…”

Section: Introductionmentioning

confidence: 99%

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Limits on production of magnetic monopoles utilizing samples from the D0 and CDF detectors at the Fermilab Tevatron

et al. 2004

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We present 90% confidence level limits on magnetic monopole production at the Fermilab Tevatron from three sets of samples obtained from the D0 and CDF detectors each exposed to a protonantiproton luminosity of ∼ 175 pb −1 (experiment E-882). Limits are obtained for the production cross-sections and masses for low-mass accelerator-produced pointlike Dirac monopoles trapped and bound in material surrounding the D0 and CDF collision regions. In the absence of a complete quantum field theory of magnetic charge, we estimate these limits on the basis of a Drell-Yan model. These results (for magnetic charge values of 1, 2, 3, and 6 times the minimum Dirac charge) extend and improve previously published bounds.

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“…The sensitivity of our current measurements was determined during testing of the lunar samples. 3 We found that the error in 6Y , £, was £ "" 0.036 corresponding to errors in 6! of ± 70 pA.…”

Section: B the Current Changementioning

confidence: 99%