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.
|Original language||English (US)|
|Number of pages||1080190|
|Journal||Physical Review D - Particles, Fields, Gravitation and Cosmology|
|Issue number||1 II|
|State||Published - Jul 1 2002|
ASJC Scopus subject areas
- Nuclear and High Energy Physics