Quarks, Baryons and Chiral Symmetry

Quarks, Baryons and Chiral Symmetry PDF Author: Atsushi Hosaka
Publisher: World Scientific
ISBN: 9810246293
Category : Science
Languages : en
Pages : 389

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Book Description
This book describes baryon models constructed from quarks, mesons and chiral symmetry. The role of chiral symmetry and of quark model structure with SU(6) spin-flavor symmetry are discussed in detail, starting from a pedagogic introduction. Emphasis is placed on symmetry aspects of the theories. As an application, the chiral bag model is studied for nucleon structure, where important methods of theoretical physics, mostly related to the semiclassical approach for a system of strong interactions, are demonstrated. The text is more practical than formal; tools and ideas are explained in detail while solving actual problems. By checking each step of the computations, readers can learn not only the calculational techniques but also the essential ideas behind them.

Quarks, Baryons and Chiral Symmetry

Quarks, Baryons and Chiral Symmetry PDF Author: Atsushi Hosaka
Publisher: World Scientific
ISBN: 9810246293
Category : Science
Languages : en
Pages : 389

Get Book

Book Description
This book describes baryon models constructed from quarks, mesons and chiral symmetry. The role of chiral symmetry and of quark model structure with SU(6) spin-flavor symmetry are discussed in detail, starting from a pedagogic introduction. Emphasis is placed on symmetry aspects of the theories. As an application, the chiral bag model is studied for nucleon structure, where important methods of theoretical physics, mostly related to the semiclassical approach for a system of strong interactions, are demonstrated. The text is more practical than formal; tools and ideas are explained in detail while solving actual problems. By checking each step of the computations, readers can learn not only the calculational techniques but also the essential ideas behind them.

Quarks Bound by Chiral Fields

Quarks Bound by Chiral Fields PDF Author: Georges Ripka
Publisher: Oxford University Press
ISBN: 9780198517849
Category : Science
Languages : en
Pages : 226

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Book Description
The structure of light hadrons is dominated by the spontaneously broken chiral symmetry of the strongly interacting (QCD) vacuum. Low energy properties of light hadrons can be described in terms of quarks interacting with chiral fields. This book gives a comprehensive account of a large class of models which describe the restoration of chiral symmetry at high temperature and density, the effective interactions between quarks, mesons as solutions of the Beth-Salpeter equation, and baryons in terms of solitions which rotate in flavor space. An in-depth analysis of regularization is given, including regularization by delocalized fields. Symmetry conserving approximations are formulated using both path integral and Feynmann graph methods. The book's style is pedagogical and well-suited to graduate and Ph.D. students who want to learn the techniques used in present day research. It can also serve as a reference for research and lecture courses.

From Quarks To Pions: Chiral Symmetry And Confinement

From Quarks To Pions: Chiral Symmetry And Confinement PDF Author: Michael Creutz
Publisher: World Scientific
ISBN: 981322925X
Category : Science
Languages : en
Pages : 216

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Book Description
At a fundamental level, the interaction of quarks with gluon fields lies at the heart of our understanding of the strong nuclear force. Experimentally, however, we only observe physical hadrons such as protons and pions. This book explores the fascinating physics involved in the path between these contrasting pictures of the world. Along the way, the book discusses symmetries, which play a crucial role in understanding the parameters of the theory, and details of the spectrum of physical particles.This would be the first book to elaborate on the detailed connections between confinement and chiral symmetry, with an emphasis on a unified treatment of the non-perturbative nature of these phenomena. As such, it should be a valuable title on any particle theorist's bookshelf, containing extensive pedagogical material for scientists at the graduate level and above.

Quarks, Baryons and Chiral Symmetry

Quarks, Baryons and Chiral Symmetry PDF Author: Atsushi Hosaka
Publisher: World Scientific
ISBN: 9789812810045
Category : Science
Languages : en
Pages : 396

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Book Description
Ch. 1. Ingredients of the standard model. 1.1. Strong interaction - QCD. 1.2. Electroweak theory. 1.3. CKM mass matrix -- ch. 2. Symmetries and wave functions. 2.1. Why is symmetry important? 2.2. Symmetry current. 2.3. SU(2). 2.4. SU(3). 2.5. Multi-particle states. 2.6. Product-states. 2.7. Quark model wave functions -- ch. 3. Chiral symmetry. 3.1. Lorentz group and chiral fermions. 3.2. Chiral group. 3.3. Spontaneous breaking of chiral symmetry -- ch. 4. The sigma model. 4.1. Linear sigma model. 4.2. Non-linear sigma model. 4.3. Fermion field -- ch. 5. Chiral bag model. 5.1. The MIT bag model. 5.2. The little bag model. 5.3. The Skyrme model. 5.4. The chiral bag model. 5.5. Chiral casimir effects. 5.6. The edgehog solution -- ch. 6. Nucleon properties. 6.1. Semiclassical method. 6.2. Isospin rotation of the hedgehog solution. 6.3. Axial properties. 6.4. Non-rigid quantization of the skyrmion. 6.5. Electromagnetic properties. 6.6. Chiral bag with vector mesons -- ch. 7. Large-Nc baryons. 7.1. Introduction. 7.2. General counting rules. 7.3. Counting rules for solitons. 7.4. Large-Nc algebra for baryons. 7.5. Finite Nc. 7.6. Other representations and gA -- ch. 8. Excited baryons. 8.1. Systematics in baryon masses. 8.2. Quarks in a deformed oscillator potential. 8.3. Electromagnetic transitions.

Chiral Quark Dynamics

Chiral Quark Dynamics PDF Author: Reinhard Alkofer
Publisher: Springer Science & Business Media
ISBN: 3540494545
Category : Science
Languages : en
Pages : 126

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Book Description
These notes give an introduction to the description of hadrons, i.e., mesons and baryons, within a quark model based on a chirally invariant quantum field theory. Emphasis is put on a didactic approach intended for graduate students with some background on functional integral techniques. Starting from QCD a motivation of a specific form of the effective quark interaction is given. Functional integral bosonization leads to a theory describing successfully meson properties. It possesses solitonic solutions which are identified as baryons. Via functional integral techniques a Faddeev equation for baryons describing them as bound states of a diquark and a quark is derived. Finally, a unification of these two complementary pictures of baryons is proposed.

Fields, Symmetries, and Quarks

Fields, Symmetries, and Quarks PDF Author: Ulrich Mosel
Publisher: Springer Science & Business Media
ISBN: 3662038412
Category : Science
Languages : en
Pages : 301

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Book Description
This revised and extended edition of the book Fields, Symmetries, and Quarks, originally published by McGraw-Hill Book Company, Hamburg, 1989, contains a new chapter on electroweak interactions which has also grown out of lectures that I have given in the meantime. In addition, a number of changes, mainly in the metric used, in the discussion of the theory of strong interactions, QCD, and in the chapter on hadron physics, have been made and errors have been corrected. The motivation for this book, however, is still the same as it was 10 years ago: This is a book on quantum field theory and our present understanding of leptons and hadrons for advanced students and the non-specialists and, in particular, the experimentalists working on problems of nuclear and hadron physics. I am grateful to Dr. S. Leupold for a very careful reading of the revised manuscript, many corrections, and helpful suggestions and to C. Traxler for producing the figures and for constructive discussions.

Quarks And Nuclei

Quarks And Nuclei PDF Author: Wolfram Weise
Publisher: World Scientific
ISBN: 9814513555
Category : Science
Languages : en
Pages : 720

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Book Description
Contents:Constituents of the Atomic Nucleus (B Povh)Quarks, Chiral Symmetry and Dynamics of Nuclear Constituents (W Weise)The Chiral Quark Bag: Properties and Spectroscopy of Baryons and the Nuclear Force (F Myhrer)Building the Nucleus from Quarks: the Cloudy Bag Model and the Quark Description of the Nucleon- Nucleon Wave Function (G A Miller)Deep Inelastic Lepton- Nucleus Scattering (H J Pirner)Baryon-baryon Interaction from Quark Model Viewpoint (M Oka & K Yazaki)From Phenomenological to Macroscopic Description of NN Annihilation (A M Green & J A Niskanen) Readership: Nuclear physicists. Keywords:Quarks;Nuclei;Chiral Symmetry;Dynamics;Baryons

Baryons '98 - Proceedings Of The 8th International Conference On The Structure Of Baryons

Baryons '98 - Proceedings Of The 8th International Conference On The Structure Of Baryons PDF Author: Dietmar W Menze
Publisher: World Scientific
ISBN: 9814543772
Category :
Languages : en
Pages : 894

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Book Description
This volume encompasses current issues in the physics of baryons, including their spectroscopy and quark-gluon substructure, and investigations with electroweak and strong interacting probes. The topics covered are: Baryon and Meson Spectroscopy, Chiral Physics, Heavy Quarks, Deep Inelastic Scattering, Form Factors and Exclusive Processes, Hadron-Nucleon Interaction, Hadrons in Nuclear Medium, and Special Topics in the First and Second Resonance, as well as a special part on the current status of neutrino physics. Each topic begins with an Introduction and Overview so as to make the more specialized papers readily accessible to non-experts.

Unification and Supersymmetry

Unification and Supersymmetry PDF Author: Rabindra N. Mohapatra
Publisher: Springer Science & Business Media
ISBN: 1475719280
Category : Science
Languages : en
Pages : 321

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Book Description
The theoretical understanding of elementary particle interactions has under gone a revolutionary change during the past one and a half decades. The spontaneously broken gauge theories, which in the 1970s emerged as a prime candidate for the description of electro-weak (as weIl as strong) interactions, have been confirmed by the discovery of neutral weak currents as weIl as the w- and Z-bosons. We now have a field theory of electro-weak interactions at energy scales below 100 GeV-the Glashow-Weinberg-Salam theory. It is a renormalizable theory which enables us to do calculations without en countering unnecessary divergences. The burning question now is: Wh at lies ahead at the next level of unification? As we head into the era of supercolliders and ultrahigh energy machines to answer this question, many ap, pealing possi bilities exist: left-right symmetry, technicolor, compositeness, grand unifica ti on, supersymmetry, supergravity, Kaluza-Klein models, and most recently superstrings that even unify gravity along with other interactions. Experi ments will decide if any one or any combination of these is to be relevant in the description of physics at the higher energies. As an outcome of our con fidence in the possible scenerios for elementary particle physics, we have seen our understanding of the early uni verse improve significantly.

Chiral Symmetry in Hadrons and Nuclei

Chiral Symmetry in Hadrons and Nuclei PDF Author: Li-Sheng Geng
Publisher: World Scientific
ISBN: 9814618233
Category : Science
Languages : en
Pages : 260

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Book Description
This proceedings volume collected papers presented at a recent symposium on Chiral Symmetry in Hadrons and Nuclei — the seventh in a series of international symposia — with an aim of providing a platform for discussions among the experts and an overview of the present status in the hadron and nuclear physics related to the chiral symmetry. The recent past years have seen a remarkable progress towards a unified description of nonperturbative strong interaction phenomena based on the fundamental theory of the strong interaction, Quantum ChromoDynamics, and Effective Field Theories. The topics discussed in these proceedings include: chiral and heavy-quark spin symmetry; chiral dynamics of few-body hadron systems; chiral symmetry and hadrons in a nuclear medium; chiral dynamics in nucleon–nucleon interaction and atomic nuclei; chiral symmetry in rotating nuclei; hadron structure and interactions; exotic hadrons, heavy flavor hadrons and nuclei; mesonic atoms and nuclei. Contents:Symmetry Breaking in the Parton Distribution Functions of the Nucleon (F-G Cao)A Chiral Effective Approach to Parity-Odd Proton-Proton Scattering (J de Vries)Tensor Force and Delta Excitation for the Structure of Light Nuclei (K Horii, H Toki and T Myo)Compositeness of Hadron Resonances in Chiral Dynamics (T Hyodo)Studies of Hypernuclei with the AMD Method (M Isaka)The High Order Chiral Lagrangian (S-Z Jiang and Q Wang)Understanding Nuclear Shape Phase Transitons Within SD-Pair Shell Model (L Li, Y Zhang, X Yuan, J Li, Y Luo, F Pan and J P Draayer)Heavy Quark Spin Structure in Hidden Charm Molecules (Y-R Liu)Decays of Doubly Charmed Meson Molecules (R Molina, A Hosaka and H Nagahiro)Recent Development on LQCD Studies of Nuclear Force (H Nemura)Octet Baryon Masses and Sigma Terms in Covariant Baryon Chiral Perturbation Theory (X-L Ren, L-S Gent and J Meng)Massive Hybrid Stars with Strangeness (T Takatsuka, T Hatsuda and K Masuda)Exotic Dibaryons with a Heavy Antiquark (Y Yamaguchi, A Hosaka and S Yasui)Chirality in Atomic Nuclei: 2013 (S Q Zhang, Q B Chen and J Meng)and other papers Keywords:Hadron;Nuclei;Chiral Symmetry