Calculations of backgrounds for cosmic ray candidates for new particles in emulsions are summarized. Even if only the strongest cosmic ray candidates are accepted as genuine, the implication is that their production cross sections would be relatively large at accelerator energies (greater than or equal to 1..mu..b) and that decay modes with ..pi../sup 0/ appear to be prominent. Current accelerator upper bounds on sigma x B/sub K pi/ for production of hadrons with M greater than 2 GeV and the relation between these bounds and the cosmic ray events are discussed.
U.S. Atomic Energy Commission depository collection.
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OSTI Identifier 7352653 Research organization: Bartol Research Foundation, Swarthmore, Pa. (USA). Research organization: Brookhaven National Lab., Upton, N.Y. (USA).