[en] A method for specifying apex coordinates is suggested. The method involves the use of data contained in track measurements; it is achieved in the form of a special processor in a geometrical program and is applied in a procedure for processing pictures taken with a MIRABEL camera in K^+- p-experiments at 32 GeV/sec. Subsequent analyses showed that the method made it possible to lessen systematic distortions in the kinematic characteristics of events and to increase efficiency of the processing system by means of an HPD automatic control machine. It should be noted that a similar method may also be applied in other types of measuring instruments when processing pictures taken with large bubble chambers

[en] Described is the algorithm of the program of production of reference points for tracks, filtered off in the process of on-line processing at spiral reader digitizer. The program is realized at the PDP-9 computer. The package of standard programs of extended mathematical software of PDP-9 contain subprograms of square root calculation and of transformation from the decart coordinate system into the polar one and the subprogram of the linear equation system solution as well. This package of programs occupies the volume of internal storage equal to 0.7 K. The program of reference point calculation itself occupies 0.8 K. The result of the on-line processing program operation is the magnetic tape with measuring information in the form of data file and of optional blocks. Three films obtained from the ''Mirabel'' chamber in K^-p experiment at 32 keV/c with the general number of vertexes of 1016, have been processed according to the described program. The per cent of going through the geometrical program in relation to the vertexes really measured (948 vertexes) constituted 90%

No abstract available

[en] Peculiarities of scanning and measurement of Gabor holograms, generated with the NOVS heavy-liquid holographic chamber used as a vertex detector in high energy physics are considered. It is shown that an optical TV scheme with projecting the cross section of the reconstructed three-dimensional image on the TV chamber vidicon and its display on the TV-monitor screen, using subsequently optical and TV magnification may be recommended for processing the events of high spatial resolution recorded on Gabor holograms. A method of precise sighting using measuring cross lines projected on the TV-chamber vidicon is recommended for coordinate measuring in the XY plane parallel to the hologram, a method for the best focusing onto the plane is advisable for z-coordinate measurement. Estimation of the error when determining z-coordinate of a bubble 5 μm in diameter makes up 20 μm at optical magnification equal to 8 and 70 μm at optical magnification equal to 1

[en] Results are presented on so far uninvestigated reactions K⁺p → K⁺p3π⁺3π^- and K⁺p → K⁺p4π⁺4π^- at 32 GeV/c. Cross sections of these reactions are determined. The longitudinal and transverse momentum distributions of secondary particles are presented. Estimations of the most important rho₀ (765), K*₀ (890) and δ⁺⁺ (1232) resonance cros sections are given

[en] Experimental data on inclusive production of the neutral kaon pairs in the reaction Ksup(+)p→(Ksup(n)Ksup(n))X obtained in the ''Mirabelle'' bubble chamber are presented. The K*^+- 90) contributions to this reaction are discussed an(8 Ksub(s)sup(0)Ksub(s)sup(0)πsup(+-) and Ksub(s)sup(0)Ksub(s)sup(0)πsup(+)πsup(-) effective mass distributions are considered. The Lund quark fragmentation model'is shwown to provide a good description of the experimental data. An enhancement in the Ksub(s)sup(0)Ksub(s)sup(0)πsup(+)πsup(-) effective mass spectrum at a mass of approximately 2.0 GeV is discussad

[en] Inclusive ρ⁺, ρ⁰, ρ^- and ω⁰ production cross sections are measured in the beam fragmentation region of π⁺ρ interactions at 250 GeV/c. The near equality of the ρ⁺ and ρ⁰ production cross sections implies suppression of valence quark recombination in pion fragmentation into vector mesons. The ratio ω⁰/ρ⁰ equals 0.45 ± 0.11 at Feynman variable x ≥ 0.3 and strongly decreases with increase of x

No abstract available

[en] The investigation of general properties of the K⁺p → K⁺pK⁺K^-π⁺π^- reaction at 32 GeV/c in the experiment using the Mirabelle bubble chamber was carried out. Distributions of secondary particles are analysed in terms of longitudinal and transverse momenta and rapidity. The effective mass spectra of the K⁺K^-, pπ⁺, K⁺π^-, K^-π⁺, pK^- and π⁺π^- systems indicate that the production of resonances 0, anti K*₀(890), K*₀(890) and δ⁺⁺(1232) takes place in the reaction. Cross sections of secondary particles and basic resonances production are determined

[en] A mathematical model for the control program of the minicomputer in the many-computer complex oriented for primary analysis of track detector films is offered. The choice for this model is based on application of the concept of logic input devices as well as in the introduced concept of virtual devices of typical graphic object scanning and interruption processing. This enables to represent the model as a system of finite automata