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arXiv · hep-ex/0204003

Large bulk matter search for fractional charge particles

Irwin T. Lee·Sewan Fan·Valerie Halyo·Eric R. Lee·Peter C. Kim·Martin L. Perl·Howard Rogers·Dinesh Loomba·Klaus S. Lackner·Gordon Shaw
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Abstract

We have carried out the largest search for stable particles with fractional electric charge, based on an oil drop method that incorporates a horizontal electric field and upward air flow. No evidence for such particles was found, giving a 95% C.L. upper limit of $1.17\times 10^{-22}$ particles per nucleon on the abundance of fractional charge particles in silicone oil for $0.18 e \le |Q_{residual}| \le 0.82 e$. Since this is the first use of this new method we describe the advantages and limitations of the method.

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Irwin T. Lee, Sewan Fan, Valerie Halyo, Eric R. Lee, Peter C. Kim, Martin L. Perl, Howard Rogers, Dinesh Loomba, Klaus S. Lackner, Gordon Shaw. 2002-06-07. Large bulk matter search for fractional charge particles. https://doi.org/10.1103/physrevd.66.012002

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