Search for Fractionally Charged Particles in Cosmic Rays Near Sea Level
نویسندگان
چکیده
منابع مشابه
Search for Fractionally Charged Particles in Showers of Low Density
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 . Correspondi...
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The recently obtained results on e+ehadrons and multigamma production in pp collisions provide some support for a previously made argument that heavy, highly charged subnucleons may exist, and a search for such particles in the cosmic rays has been made. In 620 hours no candidates were detected, and an upper limit for the unaccompanied particle flux of 7 . 10 -10 cm-2sec-lsr-l at sea level unde...
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An outstanding question pertaining to the microscopic properties of the fractional quantum Hall effect is understanding the nature of the particles that participate in the localization but that do not contribute to electronic transport. By using a scanning single electron transistor, we imaged the individual localized states in the fractional quantum Hall regime and determined the charge of the...
متن کاملImplications of multiply-charged anomalous cosmic rays
During the acceleration of anomalous cosmic rays (ACRs) some singly-charged ions are stripped of additional electrons. The resulting multiply-charged ions are accelerated more efficiently, and most ACRs with ≥30 MeV/nuc are multiply-charged. This paper considers some implications of multiply-charged ACRs, including limits that they place on the time scales for ACR acceleration and transport, an...
متن کاملSearch for heavy long-lived particles in high-energy cosmic rays.
We present the results of an experimental'search for energetic particles whicharrive at sea level delayed with respect to the shower front, with an order of magnitude greater exposure than previous experiments. The experiment was sensitive to showers from cosmic rays between I05 and lO7 GeV per nucleus. No evidence for the existence of heavy long lived particles in air showers was found. We set...
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ژورنال
عنوان ژورنال: Physical Review Letters
سال: 1967
ISSN: 0031-9007
DOI: 10.1103/physrevlett.18.1022