Study of nucleon, pion, and muon fluxes by means of roentgenographic films in emulsion stacks

Details Study of nucleon, pion, and muon fluxes by means of roentgenographic films in emulsion stacks Study of nucleon, pion, and muon fluxes by means of roentgenographic films in emulsion stacks

May 1976

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1976izssr..40..944a&link_type=abstract

(Vsesoiuznaia Konferentsiia po Fizike Kosmicheskikh Luchei, Samarkand, Uzbek SSR, Oct. 29-31, 1975.) Akademiia Nauk SSSR, Izvest

Computer Science

Sound

Cosmic Rays, Muons, Nuclear Emulsions, Nucleons, Pions, X Ray Analysis, Balloon Sounding, Electron Photon Cascades, Energy Spectra, Lead (Metal)

Scientific paper

Changes in the slope of the muon spectrum may be interpreted in terms of scaling breakdown at primary-nucleon energies on the order of 30 TeV, or an increase in slope of the nucleon spectrum of primary cosmic rays. In the balloon experiments described an attempt was made to verify these assumptions by measuring simultaneously the nucleon and pion spectra in the stratosphere, using the same technique. Stacks consisting of 16 layers, each composed of three roentgenographic films, or two such films and a 50-micron nuclear emulsion layer, separated by 0.5 cm lead were exposed for 200 hr at heights between 18 and 30 km. About 520 electron-photon cascades with zenith angles greater than 60 degrees and energies above 2 TeV, caused by the electron-photon component and by nucleon interactions (Pb events), were recorded. Two techniques were used to differentiate between these events.

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