Download or read book Properties of Leptons written by and published by . This book was released on 1989 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt: The properties of the electron, muon, tau, and their neutrinos are reviewed. Three discrepancies in our understanding of those properties are discussed: the lifetime of orthopositronium, the mass spectra of ee− pairs produced in heavy ion collisions, and the 1-charged particle modes problem in tau decays. The review concludes with a discussion of what we need to learn about the tau and the consequent need for a tau-charm factory. 68 refs., 7 figs., 8 tabs.

Download or read book Leptons written by Christopher M. Villegas and published by . This book was released on 2019-02-22 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt: In Leptons: Classes, Properties and Interactions, the authors develop a model to calculate the masses of charged leptons by quantifying the electrostatic field generated by these particles. This model is extended to weak and strong interactions in order to calculate the masses of all elementary fermions.Next, by taking the SU(2) group of weak interactions in the presence of Electric Charge Swap-symmetry as a starting point, this compilation show that ordinary and non-regular leptons are related by the ECS-rotational SO(3) group. By considering the ECS-Hamiltonian quaternions for leptons, the authors find that the SU(5) Grand Unified Theory originates from the image of normalized quaternions group N(Q8) under the ECS-rotations.The differential cross-section corresponding to a dispersion process in the context of the 331RHν model is calculated in order to use the results in terrestrial and astrophysical experiments. The differential cross-section is written in terms of the mass of the new gauge boson Z′, the mixing angle, the magnetic moment of the neutrino, and the charge radius.In closing, the authors obtain analytical expressions for the total cross section of the process e+e− τ+τ−γ in the context of the B-L model. The total cross section is analyzed in terms of themass of the new gauge boson Z′, the mixing angle θ′ of the B-L model, the magneticmoment and the electric dipole moment of the τ -lepton.

Download or read book Quarks Leptons and The Big Bang written by Jonathan Allday and published by CRC Press. This book was released on 2018-01-18 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quarks, Leptons and The Big Bang is a clear, readable and self-contained introduction to particle physics and related areas of cosmology. It bridges the gap between non-technical popular accounts and textbooks for advanced students. The book concentrates on presenting the subject from the modern perspective of quarks, leptons and the forces between them. This book will be of interest to students, teachers and general science readers interested in fundamental ideas of modern physics.

Download or read book Quarks Leptons and Beyond written by H. Fritzsch and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 557 pages. Available in PDF, EPUB and Kindle. Book excerpt: The ASI Quarks, Leptons and Beyond, held in Munich from the 5th to the 16th of September 1983 was dedicated to the study of what we now believe are the fundamental building blocks of nature: quarks and leptons. The subject was approached on two levels. On the one hand, a thorough discussion was given of the status of our knowledge of quarks and leptons and their interactions, both from an experi mental and a theoretical standpoint. On the other hand, open problems presented by the so called standard model of quark and lepton interact ions were explored along various ways that lead one beyond this frame work. One of the principal predictions of the standard model is that weak interactions are mediated by heavy Wand Z vector bosons. These particles were discovered in 1983 at CERN and their relevant proper ties were discussed at the ASI by C. Rubbia. Further theoretical predictions concerning these Z and W bosons, yet to be checked by future experimentation, were discussed by G. Altarelli with a view of seeing where the standard model might fail and new physics ensue. The strong interactions of quarks, based on Quantum Chromodynamics (QeD), are presumed to cause the quarks to bind into hadrons. Pro gress in attempts to calculate the observed hadronic spectrum, ab initio, starting from QCD and employing lattice methods were reviewed at the ASI by P. Hasenfratz.

Download or read book Neutral current Properties of Tau Leptons at PEP PETRA TRISTAN written by Shigeru Odaka and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Quarks and Leptons as Fundamental Constituents of Matter Their Properties Interactions written by Swee Ping Chia and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt: Matters are made of quarks and leptons. There are three families of them, each containing two quarks and two leptons. Ordinary matters are made of leptons and quarks of Family I. Quarks also come in three colours. The interaction of lepton and quarks are described by the Standard Theory, which is described by the gauge group SU(3) x SU(2) x U(1). It consists of the electromagnetic interaction mediated by the photon, the charged weak interaction mediated by the W+ bosons, the neutral weak interaction mediated by the Z boson and the strong interaction mediated byt he eight gluons.The charged weak interaction mixes quarks from different families. It is this mixing that gives rise to CP violation phenomena. [Author's abstract].

Download or read book Fundamental Particles written by Brian G. Duff and published by Taylor & Francis Group. This book was released on 1986 with total page 146 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Hydrocarbon Studies Reveal Neutrino Properties written by Elizabeth R. Sutton and published by . This book was released on 2023-05-20 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Standard Model of Particle Physics is the theory explaining the fundamental constituentsthat make up all particles and interactions of matter. The Standard Model containssix quarks denoted u, d, t, b, s, and c. Quarks cannot be free in nature and so they formtwo-quark groups (mesons) and three-quark groups (baryons) called hadrons. The most stable hadrons are protons (uud) and neutrons (udd). While hadrons are composed ofconstituent quarks, leptons are particles that are unable to be broken down into smaller unitsof matter. The Standard Model has three negatively charged leptons, which are described ass having lepton flavors called the electron (e), the muon (μ) and the tau (τ). Each of thecharged leptons is accompanied by a neutral lepton partner called the neutrino, denotedby their lepton flavor as νe, νμ and ντ . Quarks and leptons have an equivalent antiparticledenoted either by a bar ( ̄ νe) in the case of quarks and neutrinos or by a superscript of + referring to the positive charge.

Download or read book Lepton Dipole Moments written by B. Lee Roberts and published by World Scientific. This book was released on 2010 with total page 772 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a self-contained description of the measurements of the magnetic dipole moments of the electron and muon, along with a discussion of the measurements of the fine structure constant, and the theory associated with magnetic and electric dipole moments. Also included are the searches for a permanent electric dipole moment of the electron, muon, neutron and atomic nuclei. The related topic of the transition moment for lepton flavor violating processes, such as neutrinoless muon or tauon decays, and the search for such processes are included as well. The papers, written by many of the leading authors in this field, cover both the experimental and theoretical aspects of these topics. Sample Chapter(s). Chapter 1: Historical Introduction to Electric and Mangnetic Moments (367 KB). Contents: Historical Introduction (B L Roberts); Electromagnetic Dipole Moments and New Physics (A Czarnecki & W J Marciano); Lepton g OCo 2 from 1947 to Present (T Kinoshita); Analytic QED Calculations of the Anomalous Magnetic Moment of the Electron (S Laporta & E Remiddi); Measurements of the Electron Magnetic Moment (G Gabrielse); Determining the Fine Structure Constant (G Gabrielse); Helium Fine Structure Theory for the Determination of (K Pachucki & J Sapirstein); Hadronic Vacuum Polarization and the Lepton Anomalous Magnetic Moments (M Davier); The Hadronic Light-by-Light Contribution to a, e (J Prades et al.); General Prescriptions for One-loop Contributions to a e, (K R Lynch); Measurement of the Muon ( g OCo 2) Value (J P Miller et al.); Muon ( g OCo 2) and Physics Beyond the Standard Model (D StAckinger); Probing CP Violation with Electric Dipole Moments (M Pospelov & A Ritz); The Electric Dipole Moment of the Electron (E D Commins & D DeMille); Neutron EDM Experiments (S K Lamoreaux & R Golub); Nuclear Electric Dipole Moments (W C Griffith et al.); EDM Measurements in Storage Rings (B L Roberts et al.); Models of Lepton Flavor Violation (Y Okada); Search for the Charged Lepton-Flavor-Violating Transition Moments l OaAE l OC (Y Kuno). Readership: Researchers and graduate students in particle physics, atomic physics and nuclear physics, as well as experts working in the field

Download or read book Quarks and Leptons written by Maurice Lévy and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: The 1979 Cargese Summer Institute on Quarks and Leptons was organized by the Universite Pierre et Marie Curie, Paris (M. LEVY and J.-L. BASDEVANT), CERN (M. JACOB), the Universite Catholi~ue de Louvain (D. SPEISER and J. WEYERS), and the Katholieke Universiteit te Leuven (R. GASTMANS), who, like in 1975 and 1977, had joined their efforts and worked in common. It was the 20th Summer Institute held at Cargese and the 5th one organized by the two institutes of theoretical physics at Leuven and Louvain-la Neuve. This time, the school was dominated by the impressive advances which were made in the field of perturbative ~uantum chromodyna mics and its applications to high energy phenomena involving strongly interacting particles. The unification of weak and electromagnetic interactions being well established, a new picture in particle physics emerges wherein a possible unification of weak, electromagnetic, and strong forces is put forward. Its conse~uences were also discussed in detail. Finally, to complete the picture of the present status of high energy physics, experi mentalists from the major laboratories around the world reported on the latest developments in electron-positron scattering, neutrino induced reactions, and hadron collisions. We owe many thanks to all those who have made this Summer Institute possible! Thanks are due to the Scientific Committee of NATO and its President for a generous grant and especially to the head of the Scientific Affairs Division, Dr. M. DI LULLO for his constant help and encouragements.

Download or read book Quarks Leptons Gauge Fields written by Kerson Huang and published by World Scientific. This book was released on 1992 with total page 372 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is perhaps the most up-to-date book on Modern Elementary Particle Physics. The main content is an introduction to Yang-Mills fields, and the Standard Model of Particle Physics. A concise introduction to quarks is provided, with a discussion of the representations of SU(3).The Standard Model is presented in detail, including such topics as the Kobayashi-Maskawa matrix, chiral symmetry breaking, and the ?-vacuum. Theoretical topics of a more general nature include path integrals, topological solitons, renormalization group, effective potentials, the axial anomaly, and lattice gauge theory.This second edition, which has been expanded, incorporates the following new subjects: Wilson's renormalization scheme, and its relation to perturbative renormalization; pitfalls in quantizing gauge fields, such as the Gribov ambiguity; the lattice as a consistent regularization; Monte Carlo methods of solution; and the issues, folklores, and scenarios of quark confinement. More than a quarter of the book comprise of new materials.This book may be used as a text for a one-semester course on advanced quantum field theory, or reference book for particle physicists.

Download or read book Nuclear Forces written by Leon Rosenfeld and published by . This book was released on 1948 with total page 384 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Leptons And Quarks Special Edition Commemorating The Discovery Of The Higgs Boson written by Lev Borisovich Okun and published by World Scientific. This book was released on 2014-04-29 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book “Leptons and Quarks” was first published in the early 1980s, when the program of the experimental search for the intermediate bosons W and Z and Higgs boson H was formulated. The aim and scope of the present extended edition of the book, written after the experimental discovery of the Higgs boson in 2012, is to reflect the various stages of this 30+ years search. Along with the text of the first edition of “Leptons and Quarks” it contains extracts from a number of books published by World Scientific and an article from “On the concepts of vacuum and mass and the search for higgs” available from www.worldscientific.com/worldscinet/mpla or from arxiv.org/abs/1212.1031.The book is unique in communicating the Electroweak Theory at a basic level and in connecting the concept of Lorenz invariant mass with the concept of the Extended Standard Model, which includes gravitons as the carriers of gravitational interaction.

Download or read book Quarks Leptons and The Big Bang Second Edition written by Jonathan Allday and published by CRC Press. This book was released on 2001-01-01 with total page 1336 pages. Available in PDF, EPUB and Kindle. Book excerpt: Quarks, Leptons and The Big Bang is a clear, readable and self-contained introduction to particle physics and related areas of cosmology. It bridges the gap between non-technical popular accounts and textbooks for advanced students. The book concentrates on presenting the subject from the modern perspective of quarks, leptons and the forces between them. This book will be of interest to students, teachers and general science readers interested in fundamental ideas of modern physics.

Download or read book University Physics written by OpenStax and published by . This book was released on 2016-11-04 with total page 622 pages. Available in PDF, EPUB and Kindle. Book excerpt: University Physics is a three-volume collection that meets the scope and sequence requirements for two- and three-semester calculus-based physics courses. Volume 1 covers mechanics, sound, oscillations, and waves. Volume 2 covers thermodynamics, electricity and magnetism, and Volume 3 covers optics and modern physics. This textbook emphasizes connections between between theory and application, making physics concepts interesting and accessible to students while maintaining the mathematical rigor inherent in the subject. Frequent, strong examples focus on how to approach a problem, how to work with the equations, and how to check and generalize the result. The text and images in this textbook are grayscale.

Download or read book Leptons and Quarks written by Lev Borisovich Okunʹ and published by World Scientific Publishing Company Incorporated. This book was released on 2014 with total page 409 pages. Available in PDF, EPUB and Kindle. Book excerpt: 1. Introduction -- 2. Structure of weak currents -- 3. Muon decay -- 4. Strangeness-conserving leptonic decays of hadrons. Properties of the ud-current -- 5. Leptonic decays of pions and nucleons -- 6. Leptonic decays of K-mesons and hyperons -- 7. Strangeness-changing non-leptonic interactions -- 8. Phenomenology of non-leptonic decays of hyperons -- 9. Dynamics of non-leptonic decays of hyperons -- 10. Non-leptonic decays of K-mesons -- 11. Neutral K-mesons in vacuum and in matter -- 12. Violation of CP invariance -- 13. Decays of the [symbol]-lepton -- 14. Decays of charmed particles -- 15. Weak decays of b- and t-quarks -- 16. Neutrino-electron interactions -- 17. Neutrino-nucleon interactions -- 18. Renormalizability -- 19. Gauge invariance -- 20. Spontaneous symmetry breaking -- 21. Standard model of the electoweak interaction -- 22. Neutral currents -- 23. Properties of intermediate bosons -- 24. Properties of Higgs bosons -- 25. Grand unification -- 26. Superunification -- 27. Particles and the universe

Download or read book The Standard Theory of Particle Physics written by Luciano Maiani and published by World Scientific Publishing Company. This book was released on 2016-08-25 with total page 483 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book gives a quite complete and up-to-date picture of the Standard Theory with an historical perspective, with a collection of articles written by some of the protagonists of present particle physics. The theoretical developments are described together with the most up-to-date experimental tests, including the discovery of the Higgs Boson and the measurement of its mass as well as the most precise measurements of the top mass, giving the reader a complete description of our present understanding of particle physics.