Investigation of the Structure of a Muon Disk for E{sub 0} {>=} 5 x 10{sup 16} eV according to Data of the Yakutsk Array for Studying Extensive Air Showers

Journal Article · Sat Jan 01 04:00:00 EST 2005 · Physics of Atomic Nuclei

DOI:https://doi.org/10.1134/1.1858560· OSTI ID:20692726

Glushkov, A V; Sleptsov, I E ^[1]; Dedenko, L G ^[2]

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1. Institute of Cosmophysical Research and Aeronomy, Yakutsk Research Center, Siberian Division, Russian Academy of Sciences, pr. Lenina 31, Yakutsk, 677891 (Russian Federation)
2. Institute of Nuclear Physics, Moscow State University, Vorob'evy gory, Moscow, 119899 (Russian Federation)

The results are presented that were obtained at the Yakutsk array by investigating the time structure of a muon disk in extensive air showers of primary energy in the region E{sub 0} {>=} 5 x 10{sup 16} eV at distances of 250 to 1500 m from the shower core. The measurements were performed with a large muon detector that has an area of 184 m{sup 2} and a detection threshold of E{sub {mu}} {approx_equal} 0.5sec{theta} GeV and which began operating in November 1995. Two components having different muon-disk thicknesses were discovered, and this requires strong modifications in the currently prevalent idea of the development of extensive air showers. The problem of the existence of E{sub 0} {>=} 10{sup 20} eV events is considered.

• OSTI ID: 20692726
• Journal Information: Physics of Atomic Nuclei, Journal Name: Physics of Atomic Nuclei Journal Issue: 1 Vol. 68; ISSN 1063-7788; ISSN PANUEO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COSMIC MUONS
COSMIC RAY DETECTION
EXTENSIVE AIR SHOWERS
MUON DETECTION
PARTICLE IDENTIFICATION
PEV RANGE
SCINTILLATION COUNTERS