Electroweak Symmetry Breaking

The systematic bottom-up approach provides the appropriate framework for interpreting measurements that will be performed to better understand the physics of mass generation in the universe.

Author: Wolfgang Kilian

Publisher: Springer Science & Business Media

ISBN: 0387400974

Category: Science

Page: 116

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The systematic bottom-up approach provides the appropriate framework for interpreting measurements that will be performed to better understand the physics of mass generation in the universe. No knowledge of quantum field theory is required other than familiarity with effective Lagrangians and Feynmann diagrams.
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Electroweak Symmetry Breaking Proceedings Of The Budapest Workshop

The Standard Model has however the property that the ground state of the theory does not respect the symmetry of the Lagrangian. A technically consistent way to realize this symmetry breaking is given by the Higgs mechanism which ...

Author: Ferenc Csikor

Publisher: World Scientific

ISBN: 9789814549899

Category: Broken symmetry (Physics)

Page: 252

View: 453

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This volume contains the talks given at the above workshop which was devoted to discussing the newest developments in various models of electroweak symmetry breaking forming the basis of modern particle physics. It includes various aspects of Higgs physics and condensate models embodying dynamical symmetry breaking.
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Asymptotic Symmetry and Its Implication in Elementary Particle Physics

However , in flavor SU ( n ) symmetry and also in SU ( 2 ) electroweak symmetry for the gauge bosons , for example , the symmetry breaking manifested is quite large . Consider the JP = 0 - PS - meson multiplet . The mass of the K ...

Author: S. Oneda

Publisher: World Scientific

ISBN: 9810204981

Category: Science

Page: 346

View: 840

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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.
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Electroweak Symmetry Breaking Proceedings Of The International Workshop

Chiral Lagrangians and the Symmetry Breaking Sector The Standard Model with the U(1)Y coupling g' set equal to zero has a ... Once the electroweak symmetry breaking takes place the global group is broken to its diagonal subgroup: SU(2) ...

Author: Muta Taizo

Publisher: World Scientific

ISBN: 9789814554572

Category:

Page: 464

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The papers presented here focus on new developments in both theoretical and phenomenological aspects of standard theory, with an emphasis on understanding of the mechanism of electroweak symmetry breaking. This workshop covers the formal aspects and the related new models of electroweak symmetry breaking and the present status of the Standard Model.
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Electroweak Symmetry Breaking and New Physics at the TeV Scale

magnetic moment operator 1 - C = -o-woof" (5.1) is chirality violating, and must therefore vanish with the muon mass. ... Imposing universality and radiative electroweak symmetry breaking, one finds that chargino-sneutrino loops ...

Author: Timothy L Barklow

Publisher: World Scientific

ISBN: 9789814499071

Category: Science

Page: 752

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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. Contents:Electroweak Symmetry Breaking and Physics Beyond the Standard ModelWeakly-Coupled Higgs BosonsImplications of Supersymmetry Model BuildingLow Energy Supersymmetry PhenomenologyStrongly-Interacting Electroweak Sector — Model Independent ApproachesStrongly Coupled Electroweak Symmetry Breaking: Implications of ModelsDiscovery and Identification of Extra Gauge BosonsNew Particles and InteractionsAnomalous Gauge Boson InteractionsIndirect Probes of New PhysicsExperimental Issues at Hadron CollidersExperimental Issues at e+e- Linear Colliders Readership: Graduates and researchers in high energy physics. keywords:Electroweak Symmetry Breaking;TeV Scale;Higgs Boson;Supersymmetry;Hadron Collider;Linear Collider;Gauge Boson;Beyond the Standard Model;Dynamical Symmetry Breaking;High Energy Physics
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Electroweak Symmetry Breaking

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.

Author: Mgr.Adam Smetana

Publisher: Springer

ISBN: 9783319070735

Category: Science

Page: 172

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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.
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Symmetries and Symmetry Breaking in Field Theory

Cronin and Fitch were awarded the Nobel prize in 1980 for observing the breaking of this symmetry. The standard model including both electroweak theory and quantum chromodynamics with its SU(3) color symmetry became established, ...

Author: Parthasarathi Mitra

Publisher: CRC Press

ISBN: 9781466581050

Category: Science

Page: 112

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Many courses on modern quantum field theory focus on the formulation and application of field theory, leaving topics related to symmetry underdeveloped. This leads to students often having an incomplete understanding of symmetries. Filling this gap, Symmetries and Symmetry Breaking in Field Theory sheds light on various aspects of symmetry in field
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Electroweak Symmetry and Its Breaking

This book discusses the theoretical developments that led to the construction of this theory, the discovery and the experimental observations that need to come to fully establish the validity of the model.

Author: Regina Demina

Publisher:

ISBN: 981122224X

Category:

Page: 300

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Fundamental interactions are mediated by bosonic fields, quanta of which are realized as particles. The properties of these fields typically obey certain symmetry rules. In this book we discuss the symmetry between two types of interactions -- electromagnetic, which are familiar to anyone who turned on the electric lights, and weak, which govern the nuclear reactions that fuel the Sun. While there is a symmetry between these two types of interactions, it is broken. The unified theory of electroweak interactions was developed over 50 years ago. The Higgs scalar field named after one of the theorists that proposed it, is believed to be responsible for the breaking of the electroweak symmetry. Yet, it is only now after the discovery of the Higgs boson in 2012 by the LHC experiments, that we can study the mechanism of the electroweak symmetry breaking. This book discusses the theoretical developments that led to the construction of this theory, the discovery and the experimental observations that need to come to fully establish the validity of the model.
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Origin of Mass and Strong Coupling Gauge Theories SCGT15

The breaking happens only once, in the complete theory, and one needs to uncover the renormalisation-group (RG) flow of all couplings from the Planck scale down to the electroweak symmetry breaking scale ...

Author: Aoki Yasumichi

Publisher: World Scientific

ISBN: 9789813231474

Category: Science

Page: 408

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This volume contains contributions to the workshop, which was largely focused on the strong coupling gauge theories in search for theories beyond the standard model, particularly, the LHC experiments and lattice studies of conformal fixed point. The main topics include walking technicolor and the role of conformality in view of the 125 GeV Higgs as a light composite Higgs (technidilaton, and other composite Higgs, etc.). Nonperturbative studies like lattice simulations and stringy/holographic approaches are extensively discussed in close relation to the phenomenological studies. After the discovery of 125 GeV Higgs at LHC, the central issue of particle physics is now to reveal the dynamical origin of the Higgs itself. One of the possibilities would be the composite Higgs based on the strong coupling gauge theory in the TeV region, such as the technidilaton predicted in walking technicolor with infrared conformality. The volume contains, among others, many of the latest important reports on walking technicolor and related subjects in the general context of conformality, in a way of direct relevance to the LHC phenomenology as well as the lattice studies. It is very timely to study full theoretical implications in the exciting era when the LHC is vigorously working. This volume is of great importance for that purpose. Speakers of 40 talks (plus posters) include K-I Aoki, Y Aoki, K Bamba, E Bennett, R S Chivukula, H Georgi, A Hasenfratz, D-K Hong, K Itoh, D Elander, G Fleming, H Fukano, Y Iwasaki, M Jarvinen, D Kadoh, S Kim, R Kitano, K-I Kondo, J Kuti, D Lin, N Maru, H Matsufuru, S Matsuzaki, K-I Nagai, C Nonaka, H Ohki, E Pallante, M Rho, E Rinaldi, F Sannino, D Schaich, A Shibata, R E Shrock, E H Simmons, K Tuominen, C H Wong, N Yamada, M J S Yang, and K Yamawaki.
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String Theory and Its Applications

Chapter 8 Supersymmetry from the Top Down Michael Dine Santa Cruz Institute for Particle Physics and Department of Physics, ... The missing element of the Standard Model, the physics responsible for electroweak symmetry breaking ...

Author: Michael Dine

Publisher: World Scientific

ISBN: 9789814397063

Category: Science

Page: 872

View: 351

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The book is based on lectures given at the TASI summer school of 2010. It aims to provide advanced graduate students, postdoctorates and senior researchers with a survey of important topics in particle physics and string theory, with special emphasis on applications of methods from string theory and quantum gravity in condensed matter physics and QCD (especially heavy ion physics). Contents: Overview:Introduction to Gauge/Gravity Duality (J Polchinski)TASI Lectures on Holographic Space-Time, SUSY, and Gravitational Effective Field Theory (T Banks)LHC Physics:Fundamentals of LHC Experiments (J Nielsen)Theoretical Particle Physics at Hadron Colliders: An Introduction (M J Strassler)String Model Building, Landscape and Phenomenology:TASI Lectures: Particle Physics from Perturbative and Non-perturbative Effects in D-Braneworlds (M Cvetic and J Halverson)Supergravity and String Vacua in Various Dimensions (W Taylor)TASI Lectures on Complex Structures (F Denef)Supersymmetry from the Top Down (M Dine)AdS/CFT Applications:The Landscape of the Hubbard Model (S Sachdev)Holography for Strongly Coupled Media (D T Son)Collisions in Anti-de Sitter Space, Conformal Symmetry, and Holographic Superconductors (S S Gubser)Emergence of Supersymmetry, Gauge Theory and String Theory in Condensed Matter Systems (S-S Lee)Lectures on Holographic Non-Fermi Liquids and Quantum Phase Transitions (N Iqbal, H Liu and M Mezei)The Fluid/Gravity Correspondence (S Minwalla, V E Hubeny and M Rangamani) Readership: Graduate students, beginning post-docs and advanced researchers. Keywords:String Theory;condensed Matter Physics;Heavy Ion Physics;AdS-CFT Correspondence
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