No abstract available

No abstract available

No abstract available

No abstract available

[en] The diffractive dissociation of the π-meson on the virtual π-meson in emulsion, irradiated by π^--mesons with the 14 and 45 GeV/c pulse is studied. The π^-+n→p+nπ^+-+n₀π⁰ reaction with the production of the slow recoil proton (25< T<400 MeV) and the number n (in the given case-four) of relativistic charged particles is considered. In case of pion on pion diffractive dissociation one of the relativistic particles can be a recoil pion, the others-triproducts of the dissociation. Using the asymmetry factor in the quasirapidity distribution of relativistic charged particles, correlations of the diffractive type have been found. These correlations testify to the possibility of the diffractive dissociation in collisions of π-mesons with virtual π-mesons

[en] The search problem for correlation of secondary particles in multiple production processes is reconsidered. It is shown that the ''method of standard correlation functions'', used oftenly, provides with a result only on a presence of the statistical dependence of probabilities that the particles belong to different rapidity intervals, which is due to formal correlations always present for the hystogram columns. The experimental data dealing with the p-nucleus and π^--nucleus interactions at the momentum of 200 GeV/c in dispersion analysis in the analysis using the Smirnov-Kramer-Mieses criterion indicate definitely to a strong particle clusterization. An algorithm of direct search for isolated groups (jets) of particles in separate events is proposed and used. It is shown that particles form narrow groups, containing 2, 3, 4, and 5 members, in multiple production processes induced by protons and π^- mesons on nuclei at the momentum of 200 GeV/c

[en] Results are presented on the interaction between high-energy protons and complex nuclei in nuclear emulsions

[en] The production of phi mesions is studied in the reaction π⁺p → π⁺p K⁺K^- and π⁺ → π⁺p K⁰K-bar⁰ at 3.75 GeV/c. A large isotropic component is seen in the production angular distribution for the reaction π⁺p → π⁺pphi. The cross sections for the phiπ⁺p and phiΔ⁺⁺ final states are compared with the cross sections for ωπ⁺p and ωΔ⁺⁺ at the same momentum

[en] We report the results of a precise measurement of the K^-p → K-bar⁰n cross section between 515 and 1065 MeV/c in steps of 10 MeV/c. The statistical errors are less than 1%, a major improvement in accuracy over previous work. We discuss in detail the experimental apparatus and the corrections made to the data. No evidence is found for the new I = 1 K-barN resonances at 546 and 602 MeV/c K^- momenta reported recently by Carroll et al

[en] Recent results on inclusive production of the Ksub(S)sup(o) of the J/PSI(3.1) and on anomalous muon production in e⁺e^- annihilation at c.m. energies between 3.6 and 5 GeV are presented. In addition preliminary results on the cascade decays of the PSI'(3.7) are discussed