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

doi:10.1103/PhysRevD.66.012002

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

Research output: Contribution to journal › Article › peer-review

18 Scopus citations

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% confidence level upper limit of 1.17 × 10^-22 particles per nucleon on the abundance of fractional charge particles in silicone oil for 0.18e≤Q_residual≤0.82e. Since this is the first use of this new method we describe the advantages and limitations of the method.

Original language	English (US)
Article number	012002
Pages (from-to)	120021-1200210
Number of pages	1080190
Journal	Physical Review D - Particles, Fields, Gravitation and Cosmology
Volume	66
Issue number	1 II
DOIs	https://doi.org/10.1103/PhysRevD.66.012002
State	Published - Jul 1 2002
Externally published	Yes

ASJC Scopus subject areas

Nuclear and High Energy Physics

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10.1103/PhysRevD.66.012002

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AU - Halyo, Valerie

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AU - Kim, Peter C.

AU - Perl, Martin L.

AU - Rogers, Howard

AU - Loomba, Dinesh

AU - Lackner, Klaus S.

AU - Shaw, Gordon

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AB - 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% confidence level upper limit of 1.17 × 10-22 particles per nucleon on the abundance of fractional charge particles in silicone oil for 0.18e≤Qresidual≤0.82e. Since this is the first use of this new method we describe the advantages and limitations of the method.

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Large bulk matter search for fractional charge particles

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