Download or read book Aspects of electroweak symmetry breaking in physics beyond the standard model written by Peter Athron and published by . This book was released on 2008 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fine tuning in the Standard Model (SM) is the basis for a widespread expectation that the minimal model for electroweak symmetry breaking, with a single Higgs boson, is not realised in nature and that new physics, in addition to (or instead of) the Higgs, will be discovered at the Large Hadron Collider (LHC). However constraints on new physics indicate that many models which go beyond the SM (BSM) may also be fine tuned (although to a much lesser extent). To test this a reliable, quantitative measure of tuning is required. We review the measures of tuning used in the literature and propose an alternative measure. We apply this measure to several toy models and a constrained version of the Minimal Supersymmetric Standard Model. The Exceptional Supersymmetric Standard Model (E6SSM) is another BSM motivated by naturalness. As a supersymmetric theory it solves the SM hierarchy problem and by breaking a new gauged U(1) symmetry it also solves the Âμ-problem of the MSSM. We investigate the Renormalisation Group Evolution of the model and test for radiative electroweak symmetry breaking in two versions of the model with different high scale constraints. First we briefly look at scenarios with non-universal Higgs masses at the GUT scale and present a particle spectrum that could be observed at the LHC. Secondly we study the constrained E6SSM (CE6SSM), with universal scalar (m0), trilinear (A0) and gaugino (M) masses. We reveal a large volume of CE6SSM parameter space where the correct breakdown of the gauge symmetry can be achieved and all experimental constraints can be satisfied. We present benchmark points corresponding to different patterns of the particle spectrum. A general feature of the benchmark spectra is a light sector of SUSY particles consisting of a light gluino, two light neutralinos and a light chargino. Although the squarks, sleptons and Z boson are typically much heavier, the exotic color triplet charge 1/3 fermions as well as the lightest stop can be also relatively light leading to spectacular new physics signals at the LHC.
Download or read book Electroweak Symmetry Breaking And New Physics At The Tev Scale written by Timothy L Barklow and published by World Scientific. This book was released on 1997-05-05 with total page 749 pages. Available in PDF, EPUB and Kindle. Book excerpt: This is an expanded version of the report by the Electroweak Symmetry Breaking and Beyond the Standard Model Working Group which was contributed to Particle Physics — Perspectives and Opportunities, a report of the Division of Particles and Fields Committee for Long Term Planning. One of the Working Group's primary goals was to study the phenomenology of electroweak symmetry breaking and attempt to quantify the “physics reach” of present and future colliders. Their investigations encompassed the Standard Model — with one doublet of Higgs scalars — and approaches to physics beyond the Standard Model. These include models of low-energy supersymmetry, dynamical electroweak symmetry breaking, and a variety of extensions of the Standard Model with new particles and interactions. The Working Group also considered signals of new physics in precision measurements arising from virtual processes and examined experimental issues associated with the study of electroweak symmetry breaking and the search for new physics at present and future hadron and lepton colliders.This volume represents an important contribution to the efforts being made to advance the frontiers of particle physics.
Download or read book The Search for Physics Beyond the Standard Model in Connection to Electroweak Symmetry Breaking written by and published by . This book was released on 2014 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Electroweak Symmetry Breaking written by Mgr.Adam Smetana and published by Springer. This book was released on 2014-05-30 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt: With this thesis the author contributes to the development of a non-mainstream but long-standing approach to electroweak symmetry breaking based on an analogy with superconductivity. Electroweak symmetry breaking is assumed to be caused by dynamically generated masses of typical fermions, i.e., of quarks and leptons, which in turn assumes a new dynamics between quarks and leptons. Primarily it is designed to generate fermion masses and electroweak symmetry breaking is an automatic consequence. After the summary of the topic, the first main part of the thesis addresses the question as to whether the masses of known quarks and leptons provide sufficiently strong sources of electroweak symmetry breaking. It is demonstrated that neutrino masses subject to the seesaw mechanism are indispensable ingredients. The other two parts of the thesis are dedicated to the presentation of two particular models: The first model is based on the new strong Yukawa dynamics and serves as a platform for studying the ability to reproduce fermion masses. The second, more realistic model introduces a flavor gauge dynamics and its phenomenological consequences are studied. Even though, in the past, this type of models has already been of some interest, following the discovery of the Standard-Model-like Higgs particle, it is regaining its relevance.
Download or read book The Standard Model and Beyond written by Paul Langacker and published by CRC Press. This book was released on 2017-06-26 with total page 651 pages. Available in PDF, EPUB and Kindle. Book excerpt: This new edition of The Standard Model and Beyond presents an advanced introduction to the physics and formalism of the standard model and other non-abelian gauge theories. It provides a solid background for understanding supersymmetry, string theory, extra dimensions, dynamical symmetry breaking, and cosmology. In addition to updating all of the experimental and phenomenological results from the first edition, it contains a new chapter on collider physics; expanded discussions of Higgs, neutrino, and dark matter physics; and many new problems. The book first reviews calculational techniques in field theory and the status of quantum electrodynamics. It then focuses on global and local symmetries and the construction of non-abelian gauge theories. The structure and tests of quantum chromodynamics, collider physics, the electroweak interactions and theory, and the physics of neutrino mass and mixing are thoroughly explored. The final chapter discusses the motivations for extending the standard model and examines supersymmetry, extended gauge groups, and grand unification. Thoroughly covering gauge field theories, symmetries, and topics beyond the standard model, this text equips readers with the tools to understand the structure and phenomenological consequences of the standard model, to construct extensions, and to perform calculations at tree level. It establishes the necessary background for readers to carry out more advanced research in particle physics. Supplementary materials are provided on the author’s website and a solutions manual is available for qualifying instructors.
Download or read book The Role of Symmetry in the Development of the Standard Model written by Sherwin T. Love and published by Cambridge University Press. This book was released on 2024-02-08 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt: Symmetry and its various realizations have played a pivotal role in the development of the extremely well tested Standard Model of the strong, weak and electromagnetic interactions. In this Element, the author traces the development of the model through the interplay of the different symmetries realized in the various components of the model as well as in other sub-fields of physics.
Download or read book The Physics of the Standard Model and Beyond written by T. Morii and published by World Scientific. This book was released on 2004 with total page 316 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a unified description of elementary particle interactions and the underlying theories, namely the Standard Model and beyond. The authors have aimed at a concise presentation but have taken care that all the basic concepts are clearly described. Written primarily for graduate students in theoretical and experimental particle physics, The Physics of the Standard Model and Beyond conveys the excitement of particle physics, centering upon experimental observations (new and old) and a variety of ideas for their interpretation. Contents: Weak Interaction; Symmetries and the Gauge Theories; The Standard Model of Electroweak Interactions; Quantum Chromodynamics; Neutrino Masses and Neutrino Oscillations; Supersymmetry; Precision Test of Electroweak Radiative Corrections and New Physics; Flavor Physics and CP Violation; Appendices: Notation and Useful Relations; Cross Sections and Feynman Rule; Basics of the Group Theory; C, P and T Transformation; The Quark Model. Readership: Graduate students, experimentalists and theorists in high energy physics.
Download or read book Perspectives in the Standard Model written by R. Keith Ellis and published by World Scientific. This book was released on 1992 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: An introduction to symmetry breaking in the standard model / Edward Farhi -- Physics beyond the standard model / Jonathan A. Bagger -- Chiral effective Lagrangians / Heinrich Leutwyler -- Towards semi-classical string theory / Jeffrey A. Harvey -- Renormalization of electroweak gauge interactions / Dallas C. Kennedy -- Electroweak experiments at LEP / Alain Blondel -- The CKM matrix and CP violation / Yosef Nir -- Axion searches / Pierre Sikivie -- Lattice QCD / Andreas S. Kronfeld -- Introduction to perturbative QCD / George Sterman -- Heavy quark effective field theory / Howard Georgi -- Heavy flavor physics on the lattice / Estia Eichten -- Two lectures on neutrinos / Pierre Ramond
Download or read book Beyond The Standard Model Ii Proceedings Of The International Conference On High Energy Physics written by Kimball A Milton and published by World Scientific. This book was released on 1991-07-30 with total page 396 pages. Available in PDF, EPUB and Kindle. Book excerpt: Contents:Critical Current Density of High-Temperature Superconductors (P Chu)Electroweak Symmetry-Breaking Effects at Colliders (V Barger)Precision Tests of the Electroweak Theory (R D Peccei)Hadron Colliders: B Factories for Now and the Future (N S Lockyer)The MSW Effect as the Solution to the Solar Neutrino Problem (S P Rosen)New Physics Effects from String Models (R Arnowitt & P Nath)Solar Neutrino Puzzle and Physics Beyond the Standard Model (R N Mohapatra)The SFT: A Super Fixed Target Beauty Facility at the SSC (B Cox)Non-Standard Stellar Evolution (V Trimble)Analogous Behaviour in the Quantum Hall Effect, Anyon Superconductivity, and the Standard Model (R B Laughlin & S B Libby)Gauge Boson Dynamics (C Quigg)Interpreting Precision Measurements (G L Kane)Rare K Decays: Present Status and Future Prospects (S G Wojcicki)Quantum Mechanics at the Black Hole Horizon (G't Hooft)Target-Space Duality and the Curse of the Wormhole (J H Schwarz)Mass Enhancement and Critical Behavior in Technicolor Theories (T Appelquist)Proton-Proton and Proton-Antiproton Elastic Scattering at High Energies — Theory, Phenomenology, and Experiment (T T Wu) Readership: Graduate students and high energy physicists. keywords:
Download or read book Beyond The Standard Model Iv written by Tao Han and published by World Scientific. This book was released on 1995-08-31 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings contain over 100 talks on all aspects of Physics Beyond the Standard Model of the strong and electroweak interactions — ranging from Supersymmetry, Grand Unification, Technicolor, Exotic Particles, and CP Violation to Baryogenesis, Dark Matter, Strings and Black Holes — by leading authorities and the most active researchers in High Energy Physics. The goal of the conference is to provide a completely current summary of the most exciting and aesthetically appealing theoretical ideas, especially with regard to their predictions for yet undiscovered new particles, interactions and consequent phenomena. Particular emphasis is placed on current experimental limits and constraints on new physics, and on expectations and predictions regarding our ability to probe and discriminate between the many possibilities through experiments at present and future colliders in the decade(s) to come.
Download or read book Heavy Flavor And Electroweak Theory Proceedings Of The International Symposium written by Chao-hsi Chang and published by World Scientific. This book was released on 1996-07-29 with total page 322 pages. Available in PDF, EPUB and Kindle. Book excerpt: The symposium focused on the following hot topics of particle physics, such as heavy flavor productions and decays; QCD corrections; EW symmetry breaking theories; precise tests of Standard Model and physics beyond Standard Model; CP violation and rare decays etc. There are 30 talks presented at the symposium by participants from all over the world, who are active in the forefront of the fields.
Download or read book Beyond The Standard Model Iii written by S Godfrey and published by World Scientific. This book was released on 1993-06-25 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume presents a critical review of the standard model and the prospects for discovering new physics. It also discusses the recent developments that have taken place in new physics theories beyond the standard model.
Download or read book Physics Of Elementary Interactions Proceedings Of The Xiii Warsaw Symposium On Elementary Particle Physics written by Stefan Pokorski and published by World Scientific. This book was released on 1991-03-29 with total page 546 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains reviews and new theoretical and experimental results on the following topics: testing the standard model, electroweak symmetry breaking and Higgs boson physics, rare decays, CP violation, oscillations, physics of strong interactions, physics beyond the standard model.
Download or read book Puzzles On The Electroweak Scale Proceedings Of The 14th International Warsaw Meeting On Elementary Particle Physics written by Zygmunt Ajduk and published by World Scientific. This book was released on 1992-04-30 with total page 650 pages. Available in PDF, EPUB and Kindle. Book excerpt: The proceedings contains reviews and short communications on the following topics: status of the standard model, rare decays and CP violation, heavy quark physics, neutrino physics, Higgs bosons and electroweak breaking, nonperturbative effects in electroweak interactions, physics beyond the standard models, quantum chromodynamics and strong interactions.
Download or read book Introduction to Electroweak Symmetry Breaking written by and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The Standard Model (SM) is the backbone of elementary particle physics-not only does it provide a consistent framework for studying the interactions of quark and leptons, but it also gives predictions which have been extensively tested experimentally. In these notes, I review the electroweak sector of the Standard Model, discuss the calculation of electroweak radiative corrections to observables, and summarize the status of SM Higgs boson searches. Despite the impressive experimental successes, however, the electroweak theory is not completely satisfactory and the mechanism of electroweak symmetry breaking is untested. I will discuss the logic behind the oft-repeated statement: 'There must be new physics at the TeV scale'. These lectures reflect my strongly held belief that upcoming results from the LHC will fundamentally change our understanding of electroweak symmetry breaking. In these lectures, I review the status of the electroweak sector of the Standard Model, with an emphasis on the importance of radiative corrections and searches for the Standard Model Higgs boson. A discussion of the special role of the TeV energy scale in electroweak physics is included.
Download or read book Particle Physics beyond the Standard Model written by and published by Elsevier. This book was released on 2006-07-04 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Standard Model of elementary particles and interactions is one of the best tested theories in physics. It has been found to be in remarkable agreement with experiment, and its validity at the quantum level has been successfully probed in the electroweak sector. In spite of its experimental successes, though, the Standard Model suffers from a number of limitations, and is likely to be an incomplete theory. It contains many arbitrary parameters; it does not include gravity, the fourth elementary interaction; it does not provide an explanation for the hierarchy between the scale of electroweak interactions and the Planck scale, characteristic of gravitational interactions; and finally, it fails to account for the dark matter and the baryon asymmetry of the universe. This led particle theorists to develop and study various extensions of the Standard Model, such as supersymmetric theories, Grand Unified Theories or theories with extra space-time dimensions - most of which have been proposed well before the experimental verification of the Standard Model. The coming generation of experimental facilities (such as high-energy colliders, B-physics experiments, neutrino superbeams, as well as astrophysical and cosmological observational facilities) will allow us to test the predictions of these theories and to deepen our understanding of the fundamental laws of nature.This book is a collection of lectures given in August 2005 at the Les Houches Summer School on Particle Physics beyond the Standard Model. It provides a pedagogical introduction to the various aspects of particle physics beyond the Standard Model, covering each topic from the basics to the most recent developments: supersymmetric theories, Grand Unified Theories, theories with extra dimensions, flavour physics and CP violation, neutrino physics, astroparticle physics and cosmology. · Provides a pedagogical introduction to particle physics beyond the Standard Model· Covers the various aspects of particle physics beyond the Standard Model· Addresses each topic from the basics to the most recent developments· Addresses both the theoretical and phenomenological aspects of the subject· Written in a pedagogical style by leading experts in the field
Download or read book Particle Physics Reference Library written by Herwig Schopper and published by Springer Nature. This book was released on 2020 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt: This first open access volume of the handbook series contains articles on the standard model of particle physics, both from the theoretical and experimental perspective. It also covers related topics, such as heavy-ion physics, neutrino physics and searches for new physics beyond the standard model. A joint CERN-Springer initiative, the "Particle Physics Reference Library" provides revised and updated contributions based on previously published material in the well-known Landolt-Boernstein series on particle physics, accelerators and detectors (volumes 21A, B1,B2,C), which took stock of the field approximately one decade ago. Central to this new initiative is publication under full open access
