X iv : h ep - e x / 99 10 06 4 v 1 2 9 O ct 1 99 9 SLAC - PUB - 8283 Oct , 1999 Search for Free Fractional Electric Charge Elementary Particles

Abstract

We have carried out a direct search in bulk matter for free fractional electric charge elementary particles using the largest mass single sample ever studied— about 17.4 mg of silicone oil. The search used an improved and highly automated Millikan oil drop technique. No evidence for fractional charge particles was found. The concentration of particles with… (More)

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