Depth of the maximum of extensive air showers and mass composition of primary cosmic radiation at an energy of 4 x 10{sup 17} eV according to data on radioemission from extensive air showers

Journal Article · Sun Feb 15 04:00:00 EST 2009 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/S1063778809020070· OSTI ID:21406025

The results of a reanalysis of experimental data on extensive-air-shower radioemission that were obtained previously at the Moscow State University array for studying extensive air showers are presented. The lateral distribution of radioemission is given for showers characterized by a primary energy of 4 x 10{sup 17} eV and a zenith angle of {theta} = 35 deg. On the basis of an analysis of a lateral distribution of radioemission, the average value of the shower-maximum depth at a primary energy of 4 x 10{sup 17} eV is estimated at X{sub max} = 655 {+-} 13 g/cm{sup 2}. Estimates of themass content of primary radiation that were obtained from an analysis of the distribution of X{sub max} are compatible with the hypothesis that the role of light nuclei becomes more pronounced at energies above 10{sup 17} eV.

• OSTI ID: 21406025
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 2 Vol. 72; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COSMIC RADIATION
COSMIC SHOWERS
DATA
DISTRIBUTION
ENERGY RANGE
EXPERIMENTAL DATA
EXTENSIVE AIR SHOWERS
HYPOTHESIS
INFORMATION
IONIZING RADIATIONS
LIGHT NUCLEI
NUCLEI
NUMERICAL DATA
PEV RANGE
PRIMARY COSMIC RADIATION
RADIATIONS
SECONDARY COSMIC RADIATION
SHOWERS
SPATIAL DISTRIBUTION