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Search for fractionally charged particles in cosmic rays near sea level

Gomez, R. and Kobrak, H. and Moline, A. and Mullins, J. and Orth, C. and Van Putten, J. and Zweig, G. (1967) Search for fractionally charged particles in cosmic rays near sea level. Physical Review Letters, 18 (23). pp. 1022-1024. ISSN 0031-9007. http://resolver.caltech.edu/CaltechAUTHORS:GOMprl67

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Abstract

An array of spark chambers and scintillation-counter trays has been used to search for fractionally charged particles in cosmic rays near sea level. No acceptable events have been found with energy losses by ionization between 0.04 and 0.7 that of singly charged minimum-ionizing particles. This experiment sets new upper limits for the fluxes of fractionally charged particles in cosmic rays, namely, 1.7×10^(-10) and 3.4×10^(-10) cm^-2 sr^-1 sec^-1 (90% confidence) for minimum-ionizing particles with charges 1/3 and 2/3, respectively.


Item Type:Article
Additional Information:©1967 The American Physical Society. Received 14 April 1967. Work supported in part by the U.S. Atomic Energy Commission. Prepared under Contract No. AT(11-1)-68 for the San Francisco Operations Office, U. S. Atomic Energy Commission.
Record Number:CaltechAUTHORS:GOMprl67
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:GOMprl67
Alternative URL:http://dx.doi.org/10.1103/PhysRevLett.18.1022
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:5819
Collection:CaltechAUTHORS
Deposited By: Tony Diaz
Deposited On:03 Nov 2006
Last Modified:18 Sep 2014 18:11

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