VARIATIONS OF THE SEA LEVEL MUON FLUX

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Abstract:

Studies of cosmic ray muons were made with a spectrograph comprising a solid iron magnet, Geiger counters and neon flash-tubes. The char acteristics of the instrument are described. Time variations in the vertical direction were studied and are attributed to variations of meteorological parameters. Momentum spectra were measured in the range 2 - 500 GeVc for zenith angles between 77.5 and 90 degrees. The results are interpreted as showing that most muons in this range come from pions an upper limit of 0.55 is placed on the K-to-pi ratio for proton-air nucleus collisions of 700 - 30,000 GeV. The positive-negative ratios confirm a near constant value of 1.2 over the range of muon energies 10 - 200 GeV a likely explanation is that there is an increase in the fluctuations of multiplicity in high energy collisions.

Author(s):
Ashton, F. ; Pattison, J. B. ; Wolfendale, A. W.
Author Organization(s):
DURHAM UNIV (UNITED KINGDOM)
Descriptive Note:
Technical rept.
Pagination:
0130

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release, Document Partially Illegible
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited. Document Partially Illegible.

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
AFCRL-63-401
Monitor Series:
63-401, AFCRL
 Subject Terms
Joint Capability Areas:
JCA_6.3.3_Spectrum Management; JCA_6_Net Centric; JCA_6.3_Net Management; JCA_1.2.7_Experimentation; JCA_5_Command and Control; JCA_5.3_Planning; JCA_3.2_Engagement; JCA_3_Force Application; JCA_3.2.1_Kinetic Means; JCA_1.2.5_Lessons Learned; JCA_4.5.4_Requirements Definition; JCA_4.5_Operational Contract Support; JCA_6.1.2_Wireless Transmission; JCA_1.2_Force Preparation; JCA_1_Force Support
Modernization Areas:
Directed Energy
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*COSMIC RAY TELESCOPES, *MUONS, SPECTROSCOPY, FLUX(RATE), UNITED KINGDOM, MAGNETS, SEA LEVEL, NEON
Field(s)/Group(s):
Nuclear Physics and Elementary Particle Physics
Keyword(s):
FOREIGN REPORTSSEA LEVEL
Report Date:
1963 Jan 01