INVESTIGATION OF INTERACTIONS OF HIGH-ENERGY PARTICLES WITH ATOMIC NUCLEI, AT MOUNTAIN ALTITUDES

Journal Article · Sun Apr 01 04:00:00 EST 1962 · Izvest. Akad. Nauk S.S.S.R., Ser. Fiz.

OSTI ID:4814372

Babayan, Kh P; Babetskii, Ya S; Boyadzhyan, N G; Buya, Z A; Grigorov, N L; Loskevich, E S; Mamidzhanyan, E A; Massal'skii, E I; Oles', A A; Tret'yakova, Ch A; Shestoperov, V Ya

A 10-m/sup 2/ counter array, with several layers of counters and Pb and C absorbers was used to study high-energy cosmic ray interactions at 3200 m, It was found that spectra of ionizing events depend strongly on the size of the apparatus. In the region from 3 x 10/sup 11/ to 10/sup 13/ ev the spectrum of events falls uniformly as the spectrum of nuclear-active particles, showing no breaks,'' Results show that pi /sup 0/-mesons take up a large share of the energy in the case of inelastic events. The measurement of pi /sup 0/-energy and the coefficient of inelasticity lead to excessive estimates of the initial particle energy. The integral spectrum of events caused by mu -mesons is exponential, with the exponent gamma = 2.22 plus or minus 0.14. At sea level mu -mesons generate ~70% of all ionizing events having --2 x 103 relativistic particles, and about 50% in the case of events having ~2 x 10/sup 4/ particles. (TTT)

• Research Organization: Originating Research Org. not identified
• NSA Number: NSA-16-027874
• OSTI ID: 4814372
• Journal Information: Izvest. Akad. Nauk S.S.S.R., Ser. Fiz., Journal Name: Izvest. Akad. Nauk S.S.S.R., Ser. Fiz. Vol. Vol: 26
• Country of Publication: Country unknown/Code not available
• Language: Russian

Related Subjects

COSMIC RADIATION
COUNTERS
ENERGY
INTERACTIONS
IONIZATION
LEVELS
MEASURED VALUES
MESONS
NUCLEI
PARTICLES
PHYSICS
SPECTRA