Search for Fractionally Charged Particles in Showers of Low Density
نویسنده
چکیده
A search was made for relativistic qnarks of charge e/3 in cosmic-ray showers at sea level. A hodoscope of wire proportional counters was used, which was capable of measuring location and specific ionization of several particles arriving simultaneously, An upper limit for the Qux of quarks observed singly in the apparatus was established, with 90% confidence, at 1.9x10 ~ sec cm sr . Corresponding limits were set for quarks with one and two accompanying particles at, respectively, 6.5x10 ' sec ' cm sr and 2.2 x10 sec cm sr
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