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[en] The measurement of the cosmic ray gamma quanta and hadrons energy using one X-ray sensitive layer can lead to some systematic errors. The comparison of energy measurements with one X-ray film and with several films shows that at higher particle energies (4-8 TeV) the measurements with one film give too small energy values. This leads to incorrect determination of the gamma ray and hadron spectra from measurements with one emulsion layer. (S.B.)

[en] Groups of genetically interrelated hadrons incident onto an installation are called the hadron families. After measuring the coordinates, the zenith and azimuthal angles THETA, PSI and the energies of all hadrons detected in X-ray emulsion chamber Pamir-73/74 (7m², 556 g cm^-2) the trajectories of such hadrons were traced to the second layer of H-block where the H-families were computer-selected on the basis of certain criteria. It was assumed that all the blackening spots detected in all H-blocks were produced by different hadrons. Selection quality and results of hadron family analysis are functions of the accuracy in determining the zenith and azimuthal angles of each hadron and the probability of counting the random hadrons to the family. (author)

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[en] An exotic cosmic-ray family event is observed in the large emulsion chamber exposed by the joint experiment at the Pamirs (4360 m above sea level). The family is composed of 120γ-ray-induced showers and 37 hadron-induced showers with individual visible energy exceeding 1 TeV. The decisive feature of the event is the hadron dominance: ΣE_γ, ΣE^(γ)_h, < E_γ>, < E^(γ)_h>, < E_γ.R_γ> and < E^(γ)_h.R_h> being 298 TeV, 476 TeV, 2.5 TeV, 12.9 TeV, 28.6 GeV m and 173 GeV m, respectively. Most probably the event is due to a Centauro interaction, which occurred in the atmosphere at ≅ 700 m above the chamber. The event will constitute the second beautiful candidate for a Centauro observed at the Pamirs. (orig.)