Accession Number : AD0718439

Title :   UCSD Cosmic Ray Muon Zenith Angle Experiment.

Descriptive Note : Final rept.,

Corporate Author : CALIFORNIA UNIV BERKELEY DEPT OF PHYSICS

Personal Author(s) : Masek,George E.

Report Date : 13 OCT 1970

Pagination or Media Count : 18

Abstract : Recent investigations into the zenith angle dependence of very high energy (E > 1000 GeV) cosmic ray muons have shown a discrepancy from what would be expected if the muons originate from pions and kaons, as is currently believed to be the case. If this discrepancy is confirmed it could have important implications concerning possibly a new particle or new process. During the past year and a half the author has designed and constructed a large cosmic ray telescope to measure the zenith angle distribution of muons up to 6000 GeV. The apparatus is capable of observing 10 events a day with E > 1000 GeV and should be able to substantiate the above effect with about 9 months of running time. (Author)

Descriptors :   (*COSMIC RAYS, MUONS), (*COSMIC RAY TELESCOPES, DESIGN), PIONS, K MESONS, INTERACTIONS, SCINTILLATION COUNTERS, NUCLEAR SCATTERING

Subject Categories : Atmospheric Physics
      Nuclear Instrumentation

Distribution Statement : APPROVED FOR PUBLIC RELEASE