[en] Some important and interesting trends of heavy ion physics are briefly presented, such as giant processes which are characterized by fundamental restructuring of nuclear systems containing hundreds of nucleons, the mechanism of heavy nuclei interaction, the study of nuclear matter compression, the study of the specificity of heating and thermal conductivity of nuclear matter, the study of heavy ion/nucleus interactions at energies of 200 to 300 MeV/nucleon when the meson degree of freedom becomes manifest, the possibility of the production of ions with a large excess or deficiency of neutrons, new possibilities for determining the fission barrier, the critical verification of fundamental physical concepts of quantum electrodynamics and other possibilities of using accelerated heavy ions. The significance of heavy ion physics for the development of acceleration technologies is also described. (B.S.)

No abstract available

[en] The purpose of the paper to develop a formalism to treat rare events, especially when one applies the “active correlation” method to suppress background products in the heavy-ion induced complete fusion nuclear reactions. This formalism is in fact an extension of classical BSC formalism for the case of time multi intervals.

[en] The tightly correlated electron-positron pairs seen in experiments at the GSI Darmstadt heavy ion Laboratory and elsewhere have yet to be explained. New particle or new effect? The question was highlighted at a recent Moriond workshop held at Les Arcs in the French Alps in January

[en] An interesting feature of the presence of exchange nonlocal effects in the nucleus-nucleus collision description in the modification of the nuclear barrier. This results, on the one hand, in an enhancement of the nuclear fusion cross sections due to the modification introduced in the basic quantum mechanical tunnelling calculation and, on the other hand, leads one to the study of the consequences of those effects in the nuclear elastic scattering. In this paper, we discuss the manifestations of the presence of those effects through an approximated model Schroedinger equation describing a nuclear system colliding at energies around the barrier. An an application, the elastic channel and, concomitantly, the fusion processes are studied for the ¹⁶ O + ⁶⁰ Ni system at energies close to the barrier. (author). 15 refs., 4 figs

[en] Many of the same target preparation techniques used to fabricate samples to be bombarded with light ions (protons, deuterons, ⁴He⁺⁺, etc.) in various nuclear research studies can be and are used in fabricating targets for heavy ion interaction research. However, the experimental data obtained in heavy ion studies are far more sensitive to variations in target parameters than those resulting from light ion interactions. Careful consideration of anticipated results of the research must be given in selecting preparative techniques that can yield the desired target characteristics. Proper interpretation of experimental results demands that the target used is extensively characterized. Effects of specific target parameters, e.g., thickness, nuclidic uniformity, impurity concentration and identification, are reviewed in this paper. Preparative and characterization techniques are critically examined in terms of their effects on experimental results and on target lifetime

[en] A new possibility to obtain high charge heavy ion beams based on ionization of the inner atomic L shell is discussed. It is estimated that by using synchrotron radiation for the ionization of this shell, uranium beams almost two orders of magnitude higher than with conventional sources could be obtained. Possibility of colliding uranium experiments with beams exactly phased, originating from the same synchrotron radiation facility, is emphasized. (author)

[en] We discuss perspectives in hypernuclear studies opened by their integration with heavy ion physics. Particularly, neutron–rich Λ hypernuclei and double–Λ hypernucleican be produced, which are hardly attainable by traditional reactions and can enrich our knowledge on hadronic interactions.

[en] The report discusses all activities in connection with the heavy ion accelerator UNILAC: Heavy ion detectors, heavy ion reactions, fission, fusion reactions development of targets and ion sources. (WL)

[en] Classical equations of motion with frictional forces are used to analyze experimental data on deep inelastic collisions of heavy ions and fusion cross sections. Relationships are obtained between the parameters of the model. Questions related to the characteristic times associated with different nonequilibrium processes in nuclei are discussed