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These two volumes collect thirty-eight selected papers from the scientific contributions presented at the Fourth European Workshop on Quantum Systems in Chemistry and Physics (QSCP-IV), held in Marly-le-Roi (France) in April 22-27, 1999, A total ofone hundred and fifteen scientists attended the workshop, 99 from Europe and 16 from the rest ofthe world. They discussed the state of the art, new trends, and future evolution of the methods and applications. The workshop was held in the old town of Marly-le-Roi, which lies to the West of Paris between the historic centres of Saint-Germain-en-Laye and Versailles. Participants were housed at the National Youth Institute, where over sixty lectures w...
In recent years there has been growing interest in the nucleon-nucleon correl ations inside nuclei. In many respects the motions of the nucleons can be very well described by an overall mean field, so that the motion of each nucleon is governed by the mean field due to all the other nucleons. This concept underlies the Fermi-gas, Hartree-Fock and shell models and has enabled a range of nuclear properties to be calculated, often to surprising accuracy. It gradually became clear, however, that these mean-field models are limited by the effects due to the very strong interactions between the nucleons that occur at short distances; these are the short-range correlations. They are responsible for...
Giant resonances are collective excitations of the atomic nucleus, a typical quantum many-body system. The study of these fundamental modes has in many respects contributed to our understanding of the bulk behavior of the nucleus and of the dynamics of non-equilibrium excitations. Although the phenomenon of giant resonances has been known for more than 50 years, a large amount of information has been obtained in the last 10 years. This book gives an up-to-date, comprehensive account of our present knowledge of giant resonances. It presents the experimental facts and the techniques used to obtain that information, describes how these facts fit into theoretical concepts and how this allows to determine various nuclear properties which are otherwise difficult to obtain. Included as an introduction is an overview of the main facts, a short history of how the field has developed in the course of time, and a discussion of future perspectives.
The nucleon optical model is widely used to calculate the elastic scattering cross-sections and polarisations for the interaction of neutrons and protons with atomic nuclei. The optical model potentials not only describe the scattering but also provide the wave functions needed to analyse a wide range of nuclear reactions. They also unify many aspects of nuclear reactions and nuclear structure. This book consists of a comprehensive introduction to the subject and a selection of papers by the author describing the optical model in detail. It contains full references to the original literature with many examples of the application of the model to the analysis of experimental data.
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Nuclei of Light Elements with a Large Excess of Neutrons Obtained in Transfer Reactions with Heavy Ions.- Ground States of Light Even-Even Nuclei.- Isomers Undergoing Spontaneous Fission.- Measuring the Magnetic Moments of Short-Lived Nuclear States.- Coulomb Interaction and Reactions between Complex Nuclei.- Methods and Results of the Nuclear Three-Body Problem.- Absorption of?-Mesons and Nuclear Structure.- Nuclear Scattering of High-Energy Particles and Effective Optical Potential.- Direct Methods in the Theory of Nuclear Reactions.
International Conference on Nuclear Structure presents the status of research in nuclear structure. This book covers the more traditional topics, including giant resonances, high-spin states, current and momentum distributions in nuclei, and single particle and collective excitations at low excitation energy. Organized into eight sessions, this book begins with an overview of the experiments with low momentum antiprotons. This text then examines the interaction between two free nucleons, which can be described by their scattering matrix, by their scattering cross sections, or by relativistic or nonrelativistic potentials. Other sessions consider the results on neutron-hole states in the Zr, Sn, and Pb region from pic-up measurements. This book discusses as well the progress in the investigation of high-spin magnetic observables in medium and heavy nuclei. The final chapter deals with the methods of performing measurements of neutrino masses. This book is a valuable resource for nuclear physicists, scientists, and research workers.
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