Charge Ratio of High-Energy Cosmic Ray Muons

RESULTS are given in this communication of the ratio of the number of positively charged to negatively charged muons in the vertical cosmic radiation at Durham (200 ft. above sea-level), in the momentum range 5–1,000 GeV./c. The measurements were made with the Durham cosmic ray spectrograph, which c...

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Bibliographic Details
Published in:Nature (London) 1962-07, Vol.195 (4837), p.166-167
Main Authors: HAYMAN, P. J, WOLFENDALE, A. W
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Summary:RESULTS are given in this communication of the ratio of the number of positively charged to negatively charged muons in the vertical cosmic radiation at Durham (200 ft. above sea-level), in the momentum range 5–1,000 GeV./c. The measurements were made with the Durham cosmic ray spectrograph, which consists of a large electromagnet with layers of Geiger counters and neon flash-tubes as the detecting elements 1,2 . The measurements used in the present analysis were made by us as part of our work on the determination of the high-energy spectrum 2 ; the results refer to the period November 1959–March 1960. Instrumental bias was reduced by operating with frequent reversals of the magnetic field.
ISSN:0028-0836
1476-4687
DOI:10.1038/195166a0