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Title: OBSERVATIONS OF EXTENSIVE AIR SHOWERS NEAR THE MAXIMUM OF THEIR LONGITUDINAL DEVELOPMENT

Extensive air showers were studied at an altitude of 4200 m with an array of 11 scintillation detectors, and approximately 400 showers with sizes)15 x 10/sup 6/ particles were selected for detailed analysis. The function used in the analysis was the Greisen representation of the Nishimura-Kamata function. The ratios of the observed particle densities to the densities calculated from the trial function were plotted vs. distance from the core; the graphs indicate that the steepness of the lateral distribution decreases with the zenith angle. The integral intensities S of showers with sizes greater than N were then plotted vs. sec theta , and it is found that S for N near 30 x 10/sup 6/ is approximately constant for changes in sec theta near sec theta = 1, corresponding to maximum longitudinal development of showers with N approximately 30 x 10/sup 6/. A graph presenting the variation of N with x (slant thickness of atmosphere) at fixed S is also presented. (D.L.C.)
Authors:
; ; ; ;
Publication Date:
OSTI Identifier:
4108297
Resource Type:
Journal Article
Resource Relation:
Journal Name: Phys. Rev. Letters; Journal Volume: Vol: 6; Other Information: Orig. Receipt Date: 31-DEC-61
Research Org:
Universidad Mayor de San Andres, La Paz, Bolivia
Country of Publication:
Country unknown/Code not available
Language:
English
Subject:
PHYSICS; ATMOSPHERE; BETA DECAY; BETA DETECTION; BORON 12; CARBON 12; CHERENKOV COUNTERS; COINCIDENCE METHODS; CONFIGURATION; COSMIC RADIATION; CYCLOTRONS; DISTRIBUTION; ELECTRONS; ENERGY RANGE; EXTENSIVE AIR SHOWERS; HELICITY; HEXANE; LATERAL DISTRIBUTION; LATTICES; LEVELS; MEASURED VALUES; MOMENTUM; MUONS; MUONS-MINUS; NEUTRINOS; NUCLEAR REACTIONS; NUMERICALS; POLARIZATION; PULSES; SCATTERING; SCINTILLATION COUNTERS; SPIN; VARIATIONS