[en] Reactions of coherent multifragmentation have been predicted and observed for relativistic projectile nuclei. At the first stage of studying such reactions, we considered the coherent break-up of ¹²C→3α and ¹⁶O→4α at 4.5 A GeV/c. Their study points to the most favourable conditions for the investigation of nuclear structure and the search for various quasinuclear resonances

[en] Genuine multiparticle azimuthal correlations between secondary charged particles produced in hadron-nucleon and hadron-nucleus collisions at p₀=200-400 GeV/c and in nucleus-nucleus collisions at p₀=(2.5-4.5)A GeV/c have been studied using a new formalism. These correlations are observed for all types of charged secondaries and in all types of interactions. The meaning of obtained results and capabilities of suggested technique are also discussed at a semi-quantitative level

[en] Two-particle azimuthal correlations between 'black' and 'grey' fragments of target nuclei in interactions of C, N and Fe ions with emulsion nuclei at Bevalac and JINR accelerators energies have been investigated. It was confirmed that the 'bounce off' effects depend on the mass number of fragmenting nucleus and on the impact parameter of collisions. (author). 4 refs.; 1 fig.; 1 tab

[en] A search for the reaction of coherent dissociation ¹²C → 2α + 2d and ¹²C → 2α + t + p on carbon nuclei at 4.2 GeV/c per nucleon has been made. The cross-sections of these reactions were evaluated. The comparative analysis of the momentum and correlation characteristics of secondary fragments in the laboratory and centre-of-mass frames of fragmenting nucleus with the corresponding data on reaction ¹²C → 3α was fulfilled. (author). 11 refs., 3 figs., 1 tab

[en] Experimental data concerning transverse impulses of protons, deuterons and tritons of spectators of C-12 nucleus after interaction with propane and tantalum nuclei are presented and are discussed. Momentum characteristics of all type of fragments with the same charges depend on mass of nucleus-partner and sight parameter of collision. However these dependences strongly decrease or disappear in the frame of reference of fragmenting residual nucleus. (author). 9 refs., 3 figs., 2 tabs

[en] The fluctuations of multiplicities of charged pions and protons in the small bins of rapidity have been investigated in collisions of light relativistic nuclei with tantalum. These fluctuations show the intermittent behaviour in collisions with light target. At the same time the effect of intermittency is vanished with the increasing of target mass. (author). 1 fig.; 13 refs

[en] New experimental data concerning relative yield of different spectator fragments of C=12 nuclei from collision with propane and tantalum nuclei at 4,2 GeV/c per nucleon momenta are presented and discussed. (author). 7 refs.; 2 figs.; 3 tabs

No abstract available

[en] Multiparticle azimuthal correlations between secondary charged shower particles produced in hadron-nucleon (hN) and hadron-nucleus (hA) collisions at energies of 200-400 GeV are studied using a new formalism. These correlations are observed in hN collisions up to maximum multiplicities. For the same multiplicities, correlations in hA collisions are weaker than in hN collisions. Rough estimates are obtained for the probabilities of production of charged particles via decays of two-particle resonances in the sets of collisions under study. 13 refs., 5 figs., 1 tab

[en] The method of factorial moments is applied to study fluctuations of proton multiplicities in nucleus-nucleus interactions at 4.2 GeV/c per nucleon. In interactions with a heavy target (CTa), any dynamical effects 'disappear', and fluctuations turn out to be purely statistical