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The mass spectra of the standard model particles are reproduced in the $SO(11)$ gauge-Higgs grand unification in the six-dimensional warped space without introducing exotic light fermions. Light neutrino masses are explained by the…

High Energy Physics - Phenomenology · Physics 2018-02-27 Yutaka Hosotani , Naoki Yamatsu

If spacetime contains large compact extra dimensions, the fundamental mass scale of nature, $Lambda$, may be close to the weak scale, allowing gravitational physics to significantly modify electroweak symmetry breaking. Operators of the…

High Energy Physics - Phenomenology · Physics 2009-10-31 Lawrence Hall , Christopher Kolda

The top quark may get its mass not from a fundamental scalar but a Nambu-Jona-Lasinio mechanism involving a strongly coupled gauge sector that triggers top-quark condensation. Forbidding a large hierarchy in the gap equation implies that…

High Energy Physics - Phenomenology · Physics 2009-10-30 James D. Wells

Electroweak symmetry can be naturally broken by observed quark and gauge fields in various extra-dimensional configurations. No new {\it fundamental} fields are required below the quantum gravitational scale ($\sim$ 10 - 100 TeV). We…

High Energy Physics - Phenomenology · Physics 2009-10-31 Hsin-Chia Cheng , Bogdan A. Dobrescu , Christopher T. Hill

We consider a scenario in which the dominant quartic coupling for the Higgs doublets arises from the F-term potential, rather than the conventional SU(2)_L x U(1)_Y D-term potential, in supersymmetric theories. The quartic coupling arises…

High Energy Physics - Phenomenology · Physics 2009-09-29 Yasunori Nomura , David Poland , Brock Tweedie

This article is devoted to the status of the electroweak theory on the eve of experimentation at CERN's Large Hadron Collider. A compact summary of the logic and structure of the electroweak theory precedes an examination of what…

High Energy Physics - Phenomenology · Physics 2010-05-28 Chris Quigg

Recently, realistic theories of electroweak symmetry breaking have been constructed in which the electroweak symmetry is broken by boundary conditions imposed at a boundary of higher dimensional spacetime. These theories have equivalent 4D…

High Energy Physics - Phenomenology · Physics 2009-09-29 Gustavo Burdman , Yasunori Nomura

An electroweak model in which the masses of the W and Z bosons and the fermions are generated by quantum loop graphs through a symmetry breaking is investigated. The model is based on a regularized quantum field theory in which the quantum…

High Energy Physics - Phenomenology · Physics 2009-08-07 J. W. Moffat , V. T. Toth

We present an introduction to the basic concepts of electroweak symmetry breaking and Higgs physics within the Standard Model and its supersymmetric extensions. A brief overview will also be given on alternative mechanisms of electroweak…

High Energy Physics - Phenomenology · Physics 2007-12-17 M. Gomez-Bock , M. Mondragón , M. Mühlleitner , M. Spira , P. M. Zerwas

We construct models in which electroweak symmetry is spontaneously broken by supersymmetric strong dynamics at the TeV scale. The order parameter is a composite of scalars, and the longitudinal components of the W and Z are strongly-coupled…

High Energy Physics - Phenomenology · Physics 2019-08-17 Markus A. Luty , John Terning , Aaron K. Grant

While the LHC takes on the challenge of experimentally exploring the electroweak symmetry breaking sector, it is not only interesting but also crucial to explore alternatives to the Standard Model scenario with an elementary scalar Higgs…

High Energy Physics - Phenomenology · Physics 2012-06-11 Anna Kaminska

An introduction to the physics of electroweak symmetry breaking is given. We discuss Higgs boson production in $e^+e^-$ and hadronic collisions and survey search techniques at present and future accelerators. Indirect limits on the Higgs…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Dawson

This paper examines the Higgs particle self-coupling and its implications for electroweak symmetry breaking in the Standard Model. We review the current experimental constraints on the Higgs trilinear coupling and discuss the challenges in…

High Energy Physics - Phenomenology · Physics 2025-03-17 J. W. Moffat

In this review, we discuss methods of parsing direct and indirect information from collider experiments regarding the Higgs boson and describe simple ways in which experimental likelihoods can be consistently reconstructed and interfaced…

High Energy Physics - Phenomenology · Physics 2013-03-20 Aleksandr Azatov , Jamison Galloway

We study the electroweak symmetry breaking in a five dimensional $Sp(6)$ gauge-Higgs unification model where the weak mixing angle is predicted to be $\sin^2 \theta_W=1/4$ at the compactification scale. We find that the correct pattern of…

High Energy Physics - Phenomenology · Physics 2025-03-11 Nobuhito Maru , Akio Nago

We present a calculable supersymmetric theory of a composite ``fat'' Higgs boson. Electroweak symmetry is broken dynamically through a new gauge interaction that becomes strong at an intermediate scale. The Higgs mass can easily be 200-450…

High Energy Physics - Phenomenology · Physics 2009-09-29 Roni Harnik , Graham D. Kribs , Daniel T. Larson , Hitoshi Murayama

We propose a new dynamical relaxation mechanism of the little hierarchy problem, based on a singlet extension of the minimal supersymmetric standard model (MSSM). In this scenario, the small soft mass parameter of an MSSM singlet is…

High Energy Physics - Phenomenology · Physics 2018-06-25 Bumseok Kyae

We propose a scenario of dynamical electroweak symmetry breaking which is applicable to the model with no tree-level potential for the elementary Higgs doublet field. An example of such a model is the gauge-Higgs unification model. The…

High Energy Physics - Phenomenology · Physics 2009-04-24 Naoyuki Haba , Noriaki Kitazawa , Nobuchika Okada

Due to the mass gap between the Standard Model and possible New Physics states, electroweak effective approaches are appropriate. Although a linear realization of the electroweak symmetry breaking with the Higgs forming a doublet together…

High Energy Physics - Phenomenology · Physics 2019-10-07 Ignasi Rosell , Claudius Krause , Antonio Pich , Juan José Sanz-Cillero

The recent announcement of a discovery of a possible Higgs-like particle -its spin and parity is yet to be determined- at the LHC with a mass of 126 GeV necessitates a fresh look at the nature of the electroweak symmetry breaking, in…

High Energy Physics - Phenomenology · Physics 2013-09-09 Pham Q. Hung