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Author: S. Oneda Publisher: World Scientific ISBN: 9789810204983 Category : Science Languages : en Pages : 374
Book Description
In elementary particle physics, there are a number of recognizable underlying symmetries which correctly describe spectacular multiplet structure of observed particles. However, lack of a consistent method to deal with badly broken symmetry has hindered the investigation through symmetry. With this book the authors hope to arouse interest in the approach to broken symmetry from a fresh point of view.The authors argue that spectrum generating symmetries still maintain asymptotic symmetry for physical (not virtual) particles. When combined with the symmetry related equal-time commutation relations which are derivable from fundamental Lagrangian, asymptotic symmetry then demands a close interplay among the masses, mixing parameters and coupling constants of physical particles. From this point of view, we may understand the success of the naive quark model, remarkable mass and mass-mixing angle relations in QCD and electroweak theory and even the presence of dynamical selection rules. The method may also give us a powerful tool for the study of new physics where fundamental Lagrangian is not yet known.
Author: S. Oneda Publisher: World Scientific ISBN: 9789810204983 Category : Science Languages : en Pages : 374
Book Description
In elementary particle physics, there are a number of recognizable underlying symmetries which correctly describe spectacular multiplet structure of observed particles. However, lack of a consistent method to deal with badly broken symmetry has hindered the investigation through symmetry. With this book the authors hope to arouse interest in the approach to broken symmetry from a fresh point of view.The authors argue that spectrum generating symmetries still maintain asymptotic symmetry for physical (not virtual) particles. When combined with the symmetry related equal-time commutation relations which are derivable from fundamental Lagrangian, asymptotic symmetry then demands a close interplay among the masses, mixing parameters and coupling constants of physical particles. From this point of view, we may understand the success of the naive quark model, remarkable mass and mass-mixing angle relations in QCD and electroweak theory and even the presence of dynamical selection rules. The method may also give us a powerful tool for the study of new physics where fundamental Lagrangian is not yet known.
Author: S Oneda Publisher: World Scientific ISBN: 9814506494 Category : Science Languages : en Pages : 372
Book Description
In elementary particle physics, there are a number of recognizable underlying symmetries which correctly describe spectacular multiplet structure of observed particles. However, lack of a consistent method to deal with badly broken symmetry has hindered the investigation through symmetry. With this book the authors hope to arouse interest in the approach to broken symmetry from a fresh point of view. The authors argue that spectrum generating symmetries still maintain asymptotic symmetry for physical (not virtual) particles. When combined with the symmetry related equal-time commutation relations which are derivable from fundamental Lagrangian, asymptotic symmetry then demands a close interplay among the masses, mixing parameters and coupling constants of physical particles. From this point of view, we may understand the success of the naive quark model, remarkable mass and mass-mixing angle relations in QCD and electroweak theory and even the presence of dynamical selection rules. The method may also give us a powerful tool for the study of new physics where fundamental Lagrangian is not yet known. Contents:The Purpose and Outline of this BookParticles and Interactions — A ReviewCurrents, Charges and Commutators — A ReviewAsymptotic Behavior of Broken Flavor SymmetryOn the Foundation of Asymptotic Flavor SymmetryHadron Spectroscopy Through Constraining Algebras and Asymptotic SymmetryLevel Realization of Asymptotic Flavor Symmetry in Chiral Algebras (Possible Alternative to SU(6)w)Asymptotic Symmetry in the Standard Electroweak TheoryMeson Masses and Quark-Family Mixings in Broken SU(2)L x U(1)Y x SU(n)family SymmetryFurther Attempts Towards New PhysicsConcluding Remarks and Outlook Readership: High energy physicists. keywords:Infinite-Momentum Frame;Current Algebra;Sum Rules;Asymptotic Symmetry;Light-Like Charges
Author: Thomas F. George Publisher: Nova Publishers ISBN: 9781590334355 Category : Science Languages : en Pages : 240
Book Description
This book provides a representative sampling of the latest advances in theoretical physics. Chapters 1 and 2 deal with the Hydrogen atom. In Chapter 1, Blaive and Cadilhac carry out an analysis of hydrogenoid atomic wave functions. In Chapter 2, Boudet, Blaive Geniyes and Vanel carry out a relativistic calculation with retardation of the photoelectric effect of Hydrogen. Chapters 3 and 4 look at atoms in the presence of an external radiation field. Chapter 3 by Dastidar and Dastidar examines above-threshold ionisation of Argon in a laser field. In Chapter 4, Kazakov applies the Jaynes-Cummings model to an atom interacting simultaneously with a quasiresonant classical field and a quantised mode. Quantum dynamical problems are addressed in Chapters 5 and 6. In Chapter 5, Baute, Egusquiza and Muga study the effect of negative and classically-forbidden momenta in one-dimensional quantum scattering. Chapter 6 by Bellini finds analytical solutions to reaction-diffusion equations by mapping on a time-independent Schrödinger equation. Chapters 7 and 8 are devoted to nuclear and particle physics. In Chapter 7, Kravchenko and Soznik obtain the nucleon-nucleus optical potential in the nuclear matter approximation with the generalised Skyrme interaction. In Chapter 8, Terasaki examines non-factorisable contributions in decays. The final three chapters contain various mathematical studies which are of interest to theoretical physics in general. In Chapter 9, Shiqing analyses the equations of motion for the Newtonian n-body problem. Riazi looks at the geometry and topology of solitons in Chapter 10, and the book concludes with Chapter 11 containing a study by Elipe of the rotations of perturbed triaxial rigid bodies.
Author: D. B. Lichtenberg Publisher: Academic Press ISBN: 1483266265 Category : Science Languages : en Pages : 262
Book Description
Unitary Symmetry and Elementary Particles discusses the role of symmetry in elementary particle physics. The book reviews the theory of abstract groups and group representations including Eigenstates, cosets, conjugate classes, unitary vector spaces, unitary representations, multiplets, and conservation laws. The text also explains the concept of Young Diagrams or Young Tableaux to prove the basis functions of the unitary irreducible representations of the unitary group SU(n). The book defines Lie groups, Lie algebras, and gives some examples of these groups. The basis vectors of irreducible unitary representations of Lie groups constitute a multiplet, which according to Racah (1965) and Behrends et al. (1962) can have properties of weights. The text also explains the properties of Clebsch-Gordan coefficients and the Wigner-Eckart theorem. SU(3) multiplets have members classified as hadrons (strongly interacting particles), of which one characteristic show that the mass differences of these members have some regular properties. The Gell-Mann and Ne-eman postulate also explains another characteristic peculiar to known multiplets. The book describes the quark model, as well as, the uses of the variants of the quark model. This collection is suitable for researchers and scientists in the field of applied mathematics, nuclear physics, and quantum mechanics.
Author: J. J. Sakurai Publisher: University of Chicago Press ISBN: 0226733831 Category : Science Languages : en Pages : 174
Book Description
Current and Mesons is the most recent publication in the Chicago Lectures in Physics series. The book presents Professor Sakurai's introduction to a new field of elementary particle physics which has become increasingly important in the past few years. It is based on a course given to his advanced graduate students in theoretical high-energy physics at the University of Chicago. The author begins with a brief review of SU (3). The major topics then treated are the divergence condition and current commutation relations, vector meson universality, PCAC and the Goldberger-Treiman relation, soft pion processes, and asymptotic symmetries and spectral-function sum rules. The book concludes with a discussion of notation and of normalization convention. Professor Sakurai's work deals with topics on which much of current discussion on the theory of elementary particles is focused. The material is designed for the advanced student who is seriously interested in doing original work, and as such provides a much needed introduction to the present literature in the field.
Author: Benjamin Bederson Publisher: Springer Science & Business Media ISBN: 1461215129 Category : Science Languages : en Pages : 855
Book Description
The 20th century has been the century of unparalleled scientific advances fuelled primarily by discoveries made by physicists. The century also represents the life span of the American Physical Society, not coincidentally, and to celebrate both its own centennial and this remarkable century, the APS has prepared this book highlighting the seminal discoveries of the 20th century, with invited articles by the world's most eminent living physicists, including 12 physics Nobel Prize winners. Some 40 chapters cover a broad range of topics in physics written in an engaging and personal style. While the technical level is high, these are not review articles, but rather perspectives on discoveries written by those scientists most closely associated with the original work, as well as future directions of research.
Author: I. Hargittai Publisher: Elsevier ISBN: 148329949X Category : Science Languages : en Pages : 1084
Book Description
Symmetry 2 aims to present an overview of the contemporary status of symmetry studies, particularly in the arts and sciences, emphasizing both its role and importance. Symmetry is not only one of the fundamental concepts in science, but is also possibly the best unifying concept between various branches of science, the arts and other human activities. Whereas symmetry has been considered important for centuries primarily for its aesthetic appeal, this century has witnessed a dramatic enhancement of its status as a cornerstone in the sciences. In addition to traditionally symmetry-oriented fields such as crystallography and spectroscopy, the concept has made headway in fields as varied as reaction chemistry, nuclear physics, and the study of the origin of the universe. The book was initiated in response to the success of the first volume, which not only received good reviews, but received the award for "The Best Single Issue of a Journal" by the Association of American Publishers for 1986. The second volume extends the application of symmetry to new fields, such as medical sciences and economics, as well as investigating further certain topics introduced in Symmetry. The book is extensively illustrated and with over 64 contributions from 16 countries presents an international overview of the nature and diversity of symmetry studies today.
Author: Peter Breitenlohner Publisher: Springer ISBN: 3540444823 Category : Science Languages : en Pages : 323
Book Description
On the occasion of W. Zimmermann's 70th birthday some eminent scientists gave review talks in honor of one of the great masters of quantum field theory. It was decided to write them up and publish them in this book, together with reprints of some seminal papers of the laureate. Thus, this volume deepens our understanding of anomalies, algebraic renormalization theory, axiomatic field theory and of much more while illuminating the past and present state of affairs and pointing to interesting problems for future research.
Author: S. Oneda
Author: S. Oneda
Author: S Oneda
Author: Thomas F. George
Author: D. B. Lichtenberg
Author: J. J. Sakurai
Author: Benjamin Bederson
Author: 
Author: 
Author: I. Hargittai
Author: Peter Breitenlohner