A description of high-spin phenomena in atomic nuclei is presented from both the experimental and theoretical points of view. The characteristic features of collective nuclear motion, such as rotational bands, band crossings, and backbending, as well as noncollective aspects, like high-spin isomers and irregular decay patterns, are discussed in detail. Recent achievements of the cranking model including the independent quasiparticle and the shell correction methods are reviewed. Changes in the structure of nuclei excited up to the highest possible angular momenta are analyzed; in particular, angular momentum alignment effects, shape changes, possible phase transitions, and sudden rearrangements in the single-particle structure are discussed. Phenomena related to the nuclear quasicontinuum spectra are also examined.

High-spin phenomena in atomic-nuclei

Deep inelastic transfer reactions — The new type of reactions between complex nuclei

Transport theories of heavy-ion reactions

Transport theory of deeply inelastic heavy-ion collisions based on a random-matrix model. i. Derivation of the transport equation

This review summarises the present knowledge of experimental information on frictional effects in nuclear reactions and describes the theoretical approaches in detail. The experimental evidence for nuclear friction stems from reactions where large-scale collective motion is involved, that is fission, deep inelastic heavy-ion scattering and giant excitations. The various theories and models employed are based on the concept that friction, damping and viscosity in nuclei are due to an irreversible flow of energy (and/or linear or angular momentum) from collective to intrinsic motion.

K. Siwek-Wilczyǹska

Papers

A phenomenological model of deep-inelastic collisions between complex nuclei