A detailed review of the key models of nuclear structure and dynamics.

This book is aimed at enabling the reader to obtain a working knowledge of the nuclear shell model and to understand nuclear structure within the framework of the shell model. Attention is concentrated on a coherent, self-contained exposition of the main ideas behind the model with ample illustrations to give an idea beyond formal exposition of the concepts. Since this text grew out of a course taught for advanced undergraduate and first-year graduate students in theoretical nuclear physics, the accents are on a detailed exposition of the material with step-by-step derivations rather than on a superficial description of a large number of topics. In this sense, the book differs from a number of books on theoretical nuclear physics by narrowing the subject to only the nuclear shell model. Most of the expressions used in many of the existing books treating the nuclear shell model are derived here in more detail, in a practitioner's way. Due to frequent student requests I have expanded of detail in order to take away the typical phrase " . . . after some the level simple and straightforward algebra one finds . . . ". The material could probably be treated in a one-year course (implying going through the problem sets and setting up a number of numerical studies by using the provided computer codes). The book is essentially self-contained but requires an introductory course on quantum mechanics and nuclear physics on a more general level.

It is known that nuclear shells play a particularly important role in the collective motion of nuclear matter and, as a consequence, determine the structure of nuclei, nuclear dynamics, nuclear decay models, etc.In 1999 the nuclear shell model turned fifty, and the 49th meeting on Nuclear Spectroscopy and Nuclear Structure was devoted to nuclear shells in their various manifestations. The talks presented at the conference covered a wide range of experimental and theoretical studies.

Proceedings of a NATO ARW held in Cargese, France, June 3-7, 1991

2d atoms. Nuclear shapes and nuclear structure The paper compares the scientific ideas of spherical and deformed atomic nuclei with the previously unknown theory of checkerboard and planar atomic structure. For this purpose, the interpretations of the nuclear structure of international researchers were compared with the author's interpretations according to the checkerboard and planar atomic structure. Helmut Albert, Freiburg / Germany 2023.

Study Edition

Nuclear structure at high spin is influenced by a combination of liquid-drop and shell-structure effects. For N 86 both contribute towards the occurrence along the yrast line of high-spin oblate aligned-particle configurations. Shell effects are mainly responsible for the prolate deformation of nuclei with N 90. The competition between oblate and prolate driving effects leads to a prolate-to-oblate shape transition in 154Dy. The role of rotation-aligned configurations in the shape change is discussed.

This book provides the first graduate-level, self-contained introduction to recent developments that lead to the formulation of the configuration-interaction approach for open quantum systems, the Gamow shell model, which provides a unitary description of quantum many-body system in different regimes of binding, and enables the unification in the description of nuclear structure and reactions. The Gamow shell model extends and generalizes the phenomenologically successful nuclear shell model to the domain of weakly-bound near-threshold states and resonances, offering a systematic tool to understand and categorize data on nuclear spectra, moments, collective excitations, particle and electromagnetic decays, clustering, elastic and inelastic scattering cross sections, and radiative capture cross sections of interest to astrophysics. The approach is of interest beyond nuclear physics and based on general properties of quasi-stationary solutions of the Schrödinger equation – so-called Gamow states. For the benefit of graduate students and newcomers to the field, the quantum-mechanical fundamentals are introduced in some detail. The text also provides a historical overview of how the field has evolved from the early days of the nuclear shell model to recent experimental developments, in both nuclear physics and related fields, supporting the unified description. The text contains many worked examples and several numerical codes are introduced to allow the reader to test different aspects of the continuum shell model discussed in the book.

'The field has expanded in so many directions, in connection with the increase in accessible energy, angular momentum, and nuclear species, and the new phenomena, which have been revealed, have stimulated conceptual developments concerning the significant degrees of freedom and their interplay in nuclear dynamics ... it would be impossible for us to provide an assessment of this vastly expanded subject with anything like the degree of comprehensiveness aimed at in the original text. At the same time, this text continues to describe the basis for the understanding of nuclear structures as we see it today ...'foreword from the new prefaceAfter many years, this classic two-volume treatise is now available again in an unabridged reprint. These volumes present the basic features of nuclear structure in terms of an integration of collective and independent particle aspects and remain a foundation for current efforts in the field. Central to the book's value is an approach that recognizes the many connections between concepts of nuclear physics and those of other many-body systems, and that deals boldly with the interplay between theory and experiment. Aside from the main text, which provides a systematic exposition of the subject, there are sections labeled ';Illustrative Examples';, which present detailed analyses of experimental results and the manner in which they illuminate the concepts developed in the text. Many useful appendices on general theoretical tools are also included, covering topics such as angular momentum algebra, symmetry problems, statistical description of level densities, and theory of nuclear reactions and decays.

This book provides a useful survey and assessment of the study of low-energy collective and single particle excitations of medium and heavy nuclei. An ideal resource for graduate students, the book covers both experimental and theoretical perspectives. The author's simple intuitive approach will help the reader to understand the empirical systematics as well as detailed model calculations, without recourse to complex--and often--confusing formalism.