AIR SHOWERS OF SIZE GREATER THAN 10$sup 5$ PARTICLES. 4. THE DISTRIBUTION OF NUCLEAR ACTIVE PARTICLES AND OF MU-MESONS

Journal Article · Sat Dec 20 04:00:00 EST 1958 · Nature

DOI:https://doi.org/10.1038/1821699a0· OSTI ID:4304507

Lehane, J A; Millar, D D; Rathgeber, M H

A study was made of the nucleon and mu -meson density distribution for showers of size 5 x 10/sup 4/ to 2 x lO/sup 6/ scintillator particles out to distances of 40 m from the shower core. There is no significant evidence that the forms of the distribution functions change with shower size, aithough additional stutistics will be required in order to determine whether this is really the case. On the assumption of a conatant form for the radial structure function, the number of mu -mesons in the showers 1/ and of nucleons within the rnnge of shower sizes investigated. Comparison with similar experimental observations at mountain altitude indicates, on this assumption, that the attenuation-lengih of nucleons and of mu -mesons is longer in small showers than in large. A comparison has been made with the theoretical results of Ueda and Ogita for one primary of energy lO/sup 15/ ev and this leads to agreemeat with a value of 0.3 for the inelasticity of the highenergy collisions of the nucleon cascade. (auth)

• Research Organization: Univ. of Sydney
• Sponsoring Organization: USDOE
• NSA Number: NSA-13-004072
• OSTI ID: 4304507
• Journal Information: Nature, Journal Name: Nature Vol. Vol: 182
• Country of Publication: Country unknown/Code not available
• Language: English

Related Subjects

AIR
COSMIC RADIATION
DISTRIBUTION
ENERGY RANGE
LEVELS
MUONS
NUCLEONS
PHYSICS AND MATHEMATICS
QUANTITY RATIO
SCATTERING
SHOWERS
STATISTICS