Advances in Nuclear Physics: Volume 19

Paperback(Softcover reprint of the original 1st ed. 1989)

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Overview

The two comprehensive reviews in this volume address two fundamental problems that have been of long-standing interest and are the focus of current effort in contemporary nuclear physics: exploring experimentally the density distributions of constituents within the nucleus and understand­ ing nuclear structure and interactions in terms of hadronic degrees of freedom. One of the major goals of experimental probes of atomic nuclei has been to discover the spatial distribution of the constituents within the nucleus. As the energy and specificity of probes have increased over the years, the degree of spatial resolution and ability to select specific charge, current, spin, and isospin densities have correspondingly increased. In the first chapter, Batty, Friedman, Gils, and Rebel provide a thorough review of what has been learned about nuclear density distributions using electrons, muons, nucleons, antinucleons, pions, alpha particles, and kaons as probes. This current understanding, and the limitations thereof, are crucial in framing the questions that motivate the next generation of experimental facilities to study atomic nuclei with electromagnetic and hadronic probes. The second chapter, by Machleidt, reviews our current understanding of nuclear forces and structure in terms of hadronic degrees of freedom, that is, in terms of mesons and nucleons. Such an understanding in terms of hadronic variables is crucial for two reasons. First, since effective hadronic theories are quite successful in describing a broad range of phenomena in low-energy nuclear physics, and there are clear experimental signatures of meson exchange currents in nuclei, we must understand their foundations.

Product Details

ISBN-13: 9781461399094 Springer US 07/05/2012 Advances in Nuclear Physics , #19 Softcover reprint of the original 1st ed. 1989 396 0.00(w) x 0.00(h) x 0.03(d)

1 Experimental Methods for Studying Nuclear Density Distributions.- 1. Introduction.- 2. Nuclear Charge Distributions.- 2.1. Electron Scattering.- 2.2. Muonic Atoms.- 2.3. Electronic X Rays.- 2.4. Optical Isotope Shifts.- 2.5. Comparisons and Comments.- 3. Information on Specific Orbitals.- 3.1. Coulomb Displacement Energies.- 3.2. Nucleon Transfer Reactions.- 3.3. Charge-Exchange Reactions to Analog States.- 3.4. Magnetic Scattering of Electrons.- 3.5. Comparisons and Comments.- 4. Information on the Periphery of the Nucleus.- 4.1. Kaonic and Antiprotonic Atoms.- 4.2. Pionic Atoms.- 4.3. K? and $$\bar{p}$$ Reactions with Nuclei.- 4.4. Comments.- 5. Information on the Nuclear Surface.- 5.1. Total and Reaction Cross Sections at High Energies.- 5.2. Model-Independent Methods for the Analysis of Scattering Experiments.- 5.3. Folding Model Approaches to the Optical Potential.- 5.4. Low- and Medium-Energy Proton Scattering 95 5.5. Diffraction Scattering of Low- and Medium-Energy Alpha Particles.- 5.6. Scattering of Intermediate-Energy Pions.- 5.7. Scattering of Low-Energy Antiprotons.- 6. Toward the Nuclear Interior.- 6.1. Intermediate-Energy Alpha-Particle Scattering.- 6.2. Double-Folding versus Single-Folding in Analyses of Complex Particle Scattering and the Choice of the Interaction.- 6.3. Scattering of Intermediate-Energy Protons.- 6.4. Scattering of Low-Energy Pions.- 7. Future Methods and Probes.- 7.1. Combined Analysis of Different Types of Experiments.- 7.2. K+ Scattering.- 8. Concluding Remarks.- Acknowledgments.- References.- 2 The Meson Theory of Nuclear Forces and Nuclear Structure.- 1. Introduction.- 2. Historical Overview.- 2.1. The “Hypothetical” Period.- 2.2. The Pion as the Quantum.- 2.3. “Dispersive” Approaches.- 2.4. A Tale of Two Cities.- 2.5. More Recent Developments.- 3. Pedagogical Introduction.- 3.1. Empirical Features of the Nuclear Force.- 3.2. The Idea of Massive-Particle Exchange.- 3.3. Field Theory, Perturbation Theory, and Feynman Diagrams.- 3.4. Various Boson Fields and their Role in NN.- 4. The One-Boson Exchange Model.- 4.1. Covariant Equations.- 4.2. Meson Parameters and Two-Nucleon Properties.- 5. Advanced Meson Exchange Models.- 5.1. Models for the 2? Exchange.- 5.2. ?? Contributions.- 5.3. Other Two-Meson-Exchange Contributions.- 5.4. Results.- 5.5. Off-Shell Aspects.- 6. Charge Dependence.- 6.1. Introduction.- 6.2. Empirical Evidence.- 6.3. Some Results from Theory.- 7. Nucleon-Nucleon Scattering above the Inelastic Threshold.- 7.1. At Intermediate Energies.- 7.2. The GeV Region.- 8. Some Related Hadronic Interactions.- 8.1. Pion-Nucleon Scattering.- 8.2. The $$N\bar{N}$$ Potential.- 8.3. Strange Nuclear Interactions.- 9. Nuclear Matter I—Conventional.- 9.1. Introduction.- 9.2. History of the Conventional Many-Body Problem.- 9.3. Conventional Theories.- 9.4. Results and Problems.- 10. Nuclear Matter II—Beyond Convention.- 10.1. Possible Extensions.- 10.2. Meson Degrees of Freedom.- 10.3. Isobar Degrees of Freedom.- 10.4. Many-Body Forces.- 10.5. Relativistic Effects.- 11. Finite Nuclei.- 11.1. The Three-Nucleon System.- 11.2. The Ground State of Closed-Shell Nuclei.- 11.3. Excited States.- 12. Summary, Conclusions, and Outlook.- Acknowledgments.- Appendix A: One-Boson Exchange Potentials.- A.1. Interaction Lagrangians and OBE Amplitudes.- A.2. Relativistic Momentum Space OBEP.- A.3. Coordinate Space Potentials.- Appendix B: Models Including Isobar Degrees of Freedom.- Appendix C: Deuteron Wave Functions.- References.