[PDF] Quark Confinement And Liberation eBook

Author : Vladimir N. Gribov
Publisher : World Scientific
Page : 312 pages
File Size : 14,29 MB
Release : 2001
Category : Science
ISBN : 9789812811028

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V N Gribov, one of the founders of modern particle physics, shaped our understanding of QCD as the microscopic dynamics of hadrons. This volume collects his papers on quark confinement, showing the road he followed to arrive at the theory and formulating the theory itself. It begins with papers providing a beautiful physical explanation of asymptotic freedom based on the phenomenon of antiscreening and demonstrating the inconsistency of the standard perturbative treatment of the gluon fields (Gribov copies, Gribov horizon). It continues with papers presenting the Gribov theory according to which confinement of colour is determined by the existence of practically massless quarks. The last two papers conclude Gribov''s twenty-year-long study of the problem; QCD is formulated as a quantum field theory containing both perturbative and nonperturbative phenomena, and the confinement is based on the supercritical binding of light quarks. Contents: Quantization of Non-Abelian Gauge Theories (V N Gribov); Instability of Non-Abelian Gauge Theories and Impossibility of Choice of Coulomb Gauge (V N Gribov); Local Confinement of Charge in Massless QED (V N Gribov); Outlook (V N Gribov); Possible Solution of the Problem of Quark Confinement (V N Gribov); Orsay Lectures on Confinement (I) (V N Gribov); Orsay Lectures on Confinement (II) (V N Gribov); Orsay Lectures on Confinement (III) (V N Gribov); The Theory of Quark Confinement (V N Gribov); QCD at Large and Short Distances (V N Gribov); and other papers. Readership: Graduate students, and researchers in quantum field theory and particle physics.

Author : Wolfgang Lucha
Publisher : World Scientific
Page : 388 pages
File Size : 18,22 MB
Release : 2002-02-27
Category :
ISBN : 9814491454

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Quantum chromodynamics is generally accepted to be the quantum field theory which describes the strong interactions in elementary particle physics. However, the question of the mechanism responsible for the “confinement” of the color degrees of freedom of quarks and gluons into hadrons still ranks as one of the most interesting open problems in physics.This proceedings volume summarizes the state of the art in this area of research. Mathematically inclined readers will find the articles based on monopoles, vortices, and topology most interesting. Meanwhile, lattice calculations can be performed for many important physical quantities. Their results can be used as guidelines for developing models of quark confinement. These models are indispensable for theoretical physicists performing calculations with the Bethe-Salpeter equation, Dyson-Schwinger equations, effective Hamiltonians, and potential models. The cross-fertilization of all these subfields of research becomes evident from the articles in this book. A few experimental papers are also included.

Author : Nathan Isgur
Publisher : World Scientific
Page : 384 pages
File Size : 29,93 MB
Release : 2000
Category : Science
ISBN : 9789810242367

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The confinement mechanism of the quarks in QCD is one of the most challenging and open problems in physics. Confinement is a nonperturbative phenomenon, and a definite way to handle it has not yet been found in field theory. There are lattice calculations that can produce the low-lying states of the spectrum and ?measure? many important physical quantities, but nevertheless the development of analytical techniques is of extreme importance for understanding the physics involved in confinement. In this respect it is important to test the results obtained directly from the theory (Bethe-Salpeter kernel, effective Hamiltonians, quark potential, etc.) on the spectrum, form factors and decays of bound states of quarks and gluons, and to relate them to the results of lattice theory.In this book, the question of the confinement mechanism is addressed; explanations in terms of monopoles, instantons and dyons are reviewed and the connection with duality is discussed.

Author : Nora Serafina Brambilla
Publisher : World Scientific
Page : 454 pages
File Size : 13,82 MB
Release : 1997-05-03
Category :
ISBN : 9814547131

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The confinement mechanism of the quarks in QCD is one of the most challenging and open problems in physics. Confinement is a nonperturbative phenomenon, and a definite way to handle it has not yet been found in field theory. There are lattice calculations that can produce the low-lying states of the spectrum and 'measure' many important physical quantities, but nevertheless the development of analytical techniques is of extreme importance for understanding the physics involved in confinement. In this respect it is important to test the results obtained directly from the theory (Bethe-Salpeter kernel, effective Hamiltonians, quark potential, etc.) on the spectrum, form factors and decays of bound states of quarks and gluons, and to relate them to the results of lattice theory.In this book, the question of the confinement mechanism is addressed; explanations in terms of monopoles, instantons and dyons are reviewed and the connection with duality is discussed.

Author : Nathan Isgur
Publisher : World Scientific
Page : 384 pages
File Size : 41,85 MB
Release : 2000-06-27
Category : Science
ISBN : 981449352X

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The confinement mechanism of the quarks in QCD is one of the most challenging and open problems in physics. Confinement is a nonperturbative phenomenon, and a definite way to handle it has not yet been found in field theory. There are lattice calculations that can produce the low-lying states of the spectrum and “measure” many important physical quantities, but nevertheless the development of analytical techniques is of extreme importance for understanding the physics involved in confinement. In this respect it is important to test the results obtained directly from the theory (Bethe-Salpeter kernel, effective Hamiltonians, quark potential, etc.) on the spectrum, form factors and decays of bound states of quarks and gluons, and to relate them to the results of lattice theory.In this book, the question of the confinement mechanism is addressed; explanations in terms of monopoles, instantons and dyons are reviewed and the connection with duality is discussed.

Author : Nora Serafina Brambilla
Publisher : World Scientific
Page : 398 pages
File Size : 29,76 MB
Release : 1995-03-29
Category :
ISBN : 9814549924

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The 20-year-old problem of the confinement and the resulting spectrum of the bound states is central to quantum chromodynamics (QCD). Many approaches have been tried starting from different points of view: the potential theory, the Bethe-Salpeter equation, string and flux tube models, bag models, vacuum structure, current algebra, lattice theory, and numerical simulations. Phenomenological assumptions and first-principle theoretical results or indications have been combined. Many partial successes have been attained, but a unified and comprehensive treatment is still lacking.In recent years, new attention has been given to the problem, both in terms of theoretical developments and for the purpose of evaluating the spectrum and other properties of the particles. In particular, attention has been focussed on areas like numerical simulations, the derivation of the potential, the use of the Bethe-Salpeter equation, the connection between the potential and the chiral symmetry approach.This workshop was an opportunity for a synthesis and a comparison of the different points of view.

Author : Nora Brambilla
Publisher : American Institute of Physics
Page : 518 pages
File Size : 18,17 MB
Release : 2005-04-28
Category : Science
ISBN : 9780735402416

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This book provides an update on our understanding of strong interactions with theoretical and experimental highlights included. It is divided into five sections. The first section is devoted to the investigations into the QCD Vacuum and the latest results on the mechanism of quark confinement. The second and third sections focus respectively on light and heavy quarks (effective field theories, Schwinger-Dyson approach and lattice QCD results). The fourth section deals with the deconfinement mechanism and quark-gluon plasma formation signals. The last section presents highlights of experiments, new physics beyond QCD, and nonperturbative approaches in other theories (strings and SUSY) that may be useful in QCD.

Author : Herbert Martin Fried
Publisher : World Scientific
Page : 428 pages
File Size : 24,91 MB
Release : 1997-04-01
Category :
ISBN : 9814546534

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During the week of 3-8 June 1996, approximately 83 theoretical (and 2 experimental) physicists interested in the current problems of Quantum Chromodynamics (QCD) gathered at the American University of Paris, France, to present and discuss a total of 59 papers on Collisions, Confinement, and Chaos in QCD. Each of these three subfields filled at least two half-day sessions; and another four half-day sessions were devoted to miscellaneous and interesting papers on Quantum Field Theory (QFT), and especially on the proper construction of high-energy scattering amplitudes.