This Book contains a new proposal for physics within more than four dimensions (3 spatial dimensions + 1 time coordinate). An extra space is introduced, called basic space, instead of extra dimensions, compactified or otherwise embedded in space-time. A "dual space concept" has been applied by the author to construct models of particles, photons and nuclei mainly in a bottom -- up process. The top - down reasoning, the dominating method in theoretical physics, is only used in a second step. The kind of "twofold existence" discussed in this book turns out to be useful for describing natural systems in the living and non-living world.

The new results on the neutrino oscillations belong to the highlights of the particle and nuclear physics in the last few years. We tried to include these new developments in the present edition. Furthermore, we included a new section on the double beta decay. Of special interest is the possible neutrino less double beta decay. Its existence would require a non-trivial extension of the standard model of elementary particles. We have much appreciated the discussion and support of Gerry Garvey (Los Alamos) during the preparation of the revised version of the chapter on neu trino oscillations and the new chapter on double beta decay. We would like to thank Kunio Inoue (Sendai) for informing us about the newest results on neutrino mixing. We would like to thank Claudia Ries (Heidelberg) for carefully reading the manuscript and Jiirgen Sawinski (Heidelberg) for the excellent work he has done in formatting the book.

The fourth edition includes new developments, in particular a new section on the double beta decay including a discussion of the possibility of a neutrinoless decay and its implications for the standard model.

Understanding of protons and neutrons, or "nucleons"â€"the building blocks of atomic nucleiâ€"has advanced dramatically, both theoretically and experimentally, in the past half century. A central goal of modern nuclear physics is to understand the structure of the proton and neutron directly from the dynamics of their quarks and gluons governed by the theory of their interactions, quantum chromodynamics (QCD), and how nuclear interactions between protons and neutrons emerge from these dynamics. With deeper understanding of the quark-gluon structure of matter, scientists are poised to reach a deeper picture of these building blocks, and atomic nuclei themselves, as collective many-body systems with new emergent behavior. The development of a U.S. domestic electron-ion collider (EIC) facility has the potential to answer questions that are central to completing an understanding of atoms and integral to the agenda of nuclear physics today. This study assesses the merits and significance of the science that could be addressed by an EIC, and its importance to nuclear physics in particular and to the physical sciences in general. It evaluates the significance of the science that would be enabled by the construction of an EIC, its benefits to U.S. leadership in nuclear physics, and the benefits to other fields of science of a U.S.-based EIC.

Behavior of the?-Meson Form Factor and a Limit on Its Radius.- The Vector Dominance Model and an Experimental Check of This Model on the Basis of Vector-Meson Decay to an Electron-Positron Pair.- Three-Dimensional Formulation of the Relativistic Two-Body Problem.- Conservation of Lepton Charge in Beta Decay.- Hydrogen Targets in the Physics of High-Energy Particles.- Large-Area Scintillation Counters. 1. Proportional Scintillation Counters.

Nuclear, Particle and Many Body Physics, Volume II, is the second of two volumes dedicated to the memory of physicist Amos de-Shalit. The contributions in this volume are a testament to the respect he earned as a physicist and of the warm and rich affection he commanded as a personal friend. The book contains 41 chapters and begins with a study on the renormalization of rational Lagrangians. Separate chapters cover the scattering of high energy protons by light nuclei; approximation of the dynamics of proton-neutron systems; the scattering amplitude for the Gaussian potential; Coulomb excitation of decaying states; the and optical potential for pions propagating in nuclear matter. Subsequent chapters deal with topics such as the elastic scattering of protons from analog resonances; internal Compton scattering in a muonic atom with an excited nucleus; and a formal theory of finite nuclear systems. The book also includes a eulogy and recollections of Amos de-Shalit.