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The salient features of models of dynamical electroweak symmetry breaking are reviewed. The ideal walking idea is introduced according to which one should carefully take into account the effects of the extended technicolor dynamics on the…

High Energy Physics - Phenomenology · Physics 2011-01-27 Francesco Sannino

We present holographic desciptions of dynamical electroweak symmetry breaking models that incorporate the top mass generation mechanism. The models allow computation of the spectrum in the presence of large anomalous dimensions due to…

High Energy Physics - Phenomenology · Physics 2017-09-20 Will Clemens , Nick Evans , Marc Scott

Different theoretical and phenomenological aspects of the Minimal and Nonminimal Walking Technicolor theories have recently been studied. The goal here is to make the models ready for collider phenomenology. We do this by constructing the…

High Energy Physics - Phenomenology · Physics 2008-11-26 R. Foadi , M. T. Frandsen , T. A. Ryttov , F. Sannino

We investigate the possibility of a dark matter candidate emerging from a minimal walking technicolor theory. In this case techniquarks as well as technigluons transform under the adjoint representation of SU(2) of technicolor. It is…

High Energy Physics - Phenomenology · Physics 2008-11-26 Chris Kouvaris

We discuss the selection of fermion representations in technicolor models with a view toward minimizing technicolor contributions to the precision electroweak $S$ parameter. We present and analyze models that involve one technifermion…

High Energy Physics - Phenomenology · Physics 2011-09-29 Neil D. Christensen , Robert Shrock

There are quasi-conformal theories, like the Minimal and Ultraminimal Technicolor models, which may break dynamically the gauge symmetry of the Standard Model and at the same time are compatible with electroweak precision data. The main…

High Energy Physics - Phenomenology · Physics 2010-05-25 A. Doff , A. A. Natale

A realistic technicolor model is presented with the dynamics below $150$ TeV treated explicitly. Electroweak symmetry is broken by the condensates of a `minimal' doublet of technifermions. The new feature of the model is that the the third…

High Energy Physics - Phenomenology · Physics 2009-09-15 Raman Sundrum

We update our analysis of technicolour theories with techniquarks in higher dimensional representations of the technicolour gauge group in the light of the new electroweak precision data on the Z resonance.

High Energy Physics - Phenomenology · Physics 2009-11-11 Dennis D. Dietrich , Francesco Sannino , Kimmo Tuominen

The electroweak chiral Lagrangian for the topcolor assisted technicolor model proposed by K. Lane, which uses nontrivial patterns of techniquark condensation and walking, was investigated in this study. We found that the features of the…

High Energy Physics - Phenomenology · Physics 2015-03-19 Feng-Jun Ge , Shao-Zhou Jiang , Qing Wang

Dynamical breaking of the electroweak theory, i.e. technicolor, is an intriguing extension of the Standard Model. Recently new models have been proposed featuring walking dynamics for a very low number of techniflavors. These technicolor…

High Energy Physics - Phenomenology · Physics 2007-05-23 F. Sannino

Precision electroweak measurements have been claimed to eliminate almost all models of technicolor. We show that the assumptions made to calculate the oblique parameters $S$,$T$,$U$ apply to QCD--like technicolor models which were ruled out…

High Energy Physics - Phenomenology · Physics 2007-05-23 Kenneth Lane

We examine the effect of walking technicolor dynamics on the electroweak $S$ parameter and contrast it with the effect of QCD-like technicolor dynamics. Our main tools are the operator product expansion for the high-momentum behavior of the…

High Energy Physics - Phenomenology · Physics 2009-09-15 Raman Sundrum , Stephen D. H. Hsu

We explore a scenarios where topcolor-like dynamics operates in the presence of fourth generation matter fields. Using the Minimal Walking Technicolor as a concrete basis for model building, we construct explicit models and confront them…

High Energy Physics - Phenomenology · Physics 2011-02-08 Hidenori S. Fukano , Kimmo Tuominen

We show that the recently proposed minimal walking technicolor theory together with a small modification of the Standard Model fermionic matter content leads to an excellent degree of unification of the gauge couplings. We compare the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Sven Bjarke Gudnason , Thomas A. Ryttov , Francesco Sannino

We consider a model combining technicolor with the top quark condensation. As a concrete model for Technicolor we use the Minimal Walking Technicolor, and this will result in the appearance of a novel fourth generation whose leptons…

High Energy Physics - Phenomenology · Physics 2015-06-04 Hidenori S. Fukano , Kimmo Tuominen

A fifth force, of technicolor type, responsible for breaking the electroweak theory is an intriguing extension of the Standard Model. Recently new theories have been shown to feature walking dynamics for a very low number of techniflavors…

High Energy Physics - Phenomenology · Physics 2007-05-23 Sven Bjarke Gudnason , Chris Kouvaris , Francesco Sannino

It is quite possible that the Technicolor problems are related to the poorly known self-energy expression, or the way chiral symmetry breaking (CSB) is realized in non-abelian gauge theories. Actually, the only known laboratory to test the…

High Energy Physics - Phenomenology · Physics 2016-02-17 A. Doff

We provide a complete extension of Minimal Walking Technicolor able to account for the standard model fermion masses. The model is supersymmetric at energies greater or equal to the technicolor compositeness scale. We integrate out, at the…

High Energy Physics - Phenomenology · Physics 2015-06-03 Matti Antola , Stefano Di Chiara , Francesco Sannino , Kimmo Tuominen

We perform a lattice study of the topological susceptibility and instanton size distribution of the $\su{2}$ gauge theory with two adjoint Dirac fermions (also known as Minimal Walking Technicolor), which is known to be in the conformal…

High Energy Physics - Lattice · Physics 2013-05-13 Ed Bennett , Biagio Lucini

We unveil the temperature-dependent electroweak phase transition in new extensions of the Standard Model in which the electroweak symmetry is spontaneously broken via strongly coupled, nearly-conformal dynamics achieved by the means of…

High Energy Physics - Phenomenology · Physics 2009-08-12 Matti Jarvinen , Thomas A. Ryttov , Francesco Sannino
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