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High momentum hadron suppression is considered to be an excellent probe of jet-medium interactions in QCD matter created in ultra-relativistic heavy ion collisions. We previously showed that our dynamical energy loss formalism can…

Nuclear Theory · Physics 2015-09-02 Magdalena Djordjevic , Marko Djordjevic

We explore calculable models with low-energy supersymmetry where the flavor hierarchy is generated by quark and lepton compositeness, and where the composites emerge from the same sector that dynamically breaks supersymmetry. The observed…

High Energy Physics - Phenomenology · Physics 2014-11-20 Nathaniel Craig , Rouven Essig , Sebastian Franco , Shamit Kachru , Gonzalo Torroba

The top condensate see-saw mechanism of Dobrescu and Hill allows electroweak symmetry to be broken while deferring the problem of flavour to an electroweak singlet, massive sector. We provide an extended version of the singlet sector that…

High Energy Physics - Phenomenology · Physics 2016-08-25 Gustavo Burdman , Nick Evans

The phenomenology of the electroweak symmetry breaking sector is expected to involve resonances decaying preferentially into heavy fermions. Three recent CDF analyses are reviewed and used to constrain Higgs and Technicolor models.

High Energy Physics - Experiment · Physics 2007-05-23 Jorge F. de Troconiz

We discuss the phenomenology of the lightest SU(3)_C singlet and non-singlet technihadrons in the Straw Man Model of low-scale technicolor (TCSM). The technihadrons are assumed to be those arising in topcolor--assisted technicolor models in…

High Energy Physics - Phenomenology · Physics 2011-01-13 Kenneth Lane , Stephen Mrenna

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 examine the temperature-dependent electroweak phase transition in extensions of the Standard Model in which the electroweak symmetry is spontaneously broken via strongly coupled, nearly-conformal dynamics. In particular, we focus on the…

High Energy Physics - Phenomenology · Physics 2008-11-26 James M. Cline , Matti Jarvinen , Francesco Sannino

If electroweak symmetry breaking arises via strongly-coupled physics, the observed suppression of flavour-changing processes suggests that fermion masses should arise via mixing of elementary fermions with composite fermions of the strong…

High Energy Physics - Phenomenology · Physics 2010-02-17 Ben Gripaios

The mechanism of the electroweak symmetry-breaking (EWSB) is studied in the context of the heavy top quark, whose large mass may provide a clue as to the mechanism which generates the mass of the $W^\pm$ and $Z$ bosons. As a result, it…

High Energy Physics - Phenomenology · Physics 2007-05-23 Tim M. P. Tait

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

We study the expected phenomenology at present (Tevatron) and future (Tevatron Upgrade, LHC) hadronic colliders of a model describing a strong electroweak symmetry breaking sector with both vector and axial vector strong interacting bosons…

High Energy Physics - Phenomenology · Physics 2009-10-30 R. Casalbuoni , P. Chiappetta , A. Deandrea , S. De Curtis , D. Dominici , R. Gatto

We present a model of dynamical electroweak symmetry breaking in which the splitting between the top and bottom quark masses arises naturally. The W and Z masses are produced by a minimal technicolor sector, the top quark mass is given by…

High Energy Physics - Phenomenology · Physics 2016-08-25 Bogdan A. Dobrescu , Elizabeth H. Simmons

Models of spontaneous breaking of electroweak symmetry by a strong interaction do not have fine tuning/hierarchy problem. They are conceptually elegant and use the only mechanism of spontaneous breaking of a gauge symmetry that is known to…

High Energy Physics - Phenomenology · Physics 2011-02-22 Benjamin Grinstein

We review the status of and recent developments in dynamical electroweak symmetry breaking, concentrating on the ideas of technicolour and top quark condensates. The emphasis is on the essential physical ideas and experimental implications…

High Energy Physics - Phenomenology · Physics 2010-12-17 Stephen F King

Recently a new dynamical symmetry breaking model of electroweak interactions was proposed based on interacting fermions. Two fermions of different SU(2) representations form a symmetry breaking condensate and generate the lepton and quark…

High Energy Physics - Phenomenology · Physics 2008-11-26 G. Cynolter , E. Lendvai

In this summary report of the 2001 Snowmass Electroweak Symmetry Breaking Working Group, the main candidates for theories of electroweak symmetry breaking are surveyed, and the criteria for distinguishing among the different approaches are…

High Energy Physics - Phenomenology · Physics 2008-11-26 Marcela Carena , David W. Gerdes , Howard E. Haber , Andre S. Turcot , Peter M. Zerwas

We discuss the possibility that flavor hierarchies arise from the electroweak scale in a two Higgs doublet model, in which the two Higgs doublets jointly act as the flavon. Quark masses and mixing angles are explained by effective Yukawa…

High Energy Physics - Phenomenology · Physics 2015-06-08 Martin Bauer , Marcela Carena , Katrin Gemmler

In these lectures we present the motivation for dynamical electroweak symmetry breaking and its most popular realization, technicolor. We introduce the basic ideas of technicolor and its companion theory of flavor, extended technicolor. We…

High Energy Physics - Phenomenology · Physics 2016-10-26 Kenneth Lane

The modern precision accelerator data has essentially ruled out the most obvious model of dynamical electroweak symmetry breaking, technicolour. The idea is though well motivated and it is important to construct models compatible with the…

High Energy Physics - Phenomenology · Physics 2007-05-23 Nick Evans

Gauged flavor symmetries at low energies have been proposed in models of dynamical electroweak symmetry breaking and fermion mass generation. The massive flavor gauge bosons give rise to corrections to precisely measured electroweak…

High Energy Physics - Phenomenology · Physics 2009-10-31 Gustavo Burdman , R. Sekhar Chivukula , Nick Evans