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Related papers: Holographic Techni-dilaton, or Conformal Higgs

200 papers

Techni-dilaton, a pseudo-Nambu-Goldstone boson of scale symmetry, was predicted long ago in the Scale-invariant/Walking/Conformal Technicolor (SWC-TC) as a remnant of the (approximate) scale symmetry associated with the conformal fixed…

High Energy Physics - Phenomenology · Physics 2014-11-21 Kazumoto Haba , Shinya Matsuzaki , Koichi Yamawaki

In contrast to the folklore that Technicolor (TC) is a "Higgsless theory", we shall discuss existence of a composite Higgs boson, Techni-Dilaton (TD), a pseudo-Nambu-Goldstone boson of the scale invariance in the…

High Energy Physics - Phenomenology · Physics 2010-11-15 Koichi Yamawaki

We analyze in detail the phenomenology of a model of dynamical electroweak symmetry breaking inspired by walking technicolor, by using the techniques of the bottom-up approach to holography. The model admits a light composite scalar state,…

High Energy Physics - Phenomenology · Physics 2015-06-05 Robert Lawrance , Maurizio Piai

We calculate masses of the technipions in the walking technicolor model with the anomalous dimension gamma_m =1, based on a holographic model which has a naturally light technidilaton phi as a composite Higgs with mass m_phi simeq 125 GeV.…

High Energy Physics - Phenomenology · Physics 2014-11-19 Masafumi Kurachi , Shinya Matsuzaki , Koichi Yamawaki

We find that a holographic walking technicolor model has a limit ("conformal limit") where the techni-dilaton (TD) becomes an exactly massless Nambu-Goldstone boson of the scale symmetry with its nonzero finite decay constant F_phi /= 0,…

High Energy Physics - Phenomenology · Physics 2015-06-11 Shinya Matsuzaki , Koichi Yamawaki

We critically discuss the possibility that the 125 GeV boson recently discovered at the LHC is the holographic techni-dilaton, a composite state emerging from a strongly-coupled model of electroweak symmetry breaking. This composite state…

High Energy Physics - Phenomenology · Physics 2015-06-11 Daniel Elander , Maurizio Piai

Techni-dilaton (TD) is predicted in walking technicolor (WTC) arising as a pseudo Nambu-Goldstone boson associated with the approximate scale symmetry spontaneously broken by techni-fermion condensation. The TD mass is therefore smaller…

High Energy Physics - Phenomenology · Physics 2013-05-30 Shinya Matsuzaki , Koichi Yamawaki

We present discovery signatures of techni-dilaton (TD) at LHC. The TD was predicted long ago as a pseudo Nambu-Goldstone boson (pNGB) associated with the spontaneous breaking of the approximate scale symmetry in the walking technicolor…

High Energy Physics - Phenomenology · Physics 2011-09-14 Shinya Matsuzaki , Koichi Yamawaki

We explicitly calculate the $S$ parameter in entire parameter space of the holographic walking/conformal technicolor (W/C TC), based on the deformation of the holographic QCD by varying the anomalous dimension from $\gamma_m \simeq 0$…

High Energy Physics - Phenomenology · Physics 2008-12-23 Kazumoto Haba , Shinya Matsuzaki , Koichi Yamawaki

We explore discovery signatures of techni-dilaton (TD) at LHC. The TD was predicted long ago as a composite pseudo Nambu-Goldstone boson (pNGB) associated with the spontaneous breaking of the approximate scale symmetry in the walking…

High Energy Physics - Phenomenology · Physics 2012-03-03 Shinya Matsuzaki , Koichi Yamawaki

Precision electroweak data, a light higgs and LHC searches for new spin one particles are all very constraining on technicolor models. We use a holographic model of walking techicolor (WTC) gauge dynamics, tuned to produce a light higgs and…

High Energy Physics - Phenomenology · Physics 2019-05-15 Alexander Belyaev , Azaria Coupe , Nick Evans , Marc Scott

We consider a technicolor model in which the expectation value of an additional, possibly composite, scalar field is responsible for the generation of fermion masses. We define the dynamics of the strongly coupled sector by constructing its…

High Energy Physics - Phenomenology · Physics 2008-11-26 Christopher D. Carone , Joshua Erlich , Jong Anly Tan

We show that the Standard Model (SM) Higgs Lagrangian is identical to the nonlinear realization of both the scale and chiral symmetries ("scale-invariant nonlinear sigma model"), and is further gauge equivalent to the "scale-invariant…

High Energy Physics - Phenomenology · Physics 2015-11-25 Koichi Yamawaki

We present a simplified holographic model of chiral symmetry breaking in gauge theory. The chiral condensate is represented by a single scalar field in AdS, with the gauge dynamics input through radial dependence of its mass, representing…

High Energy Physics - Phenomenology · Physics 2013-04-17 Nick Evans , Kimmo Tuominen

We investigate the strongly coupled minimal walking technicolor model (MWT) in the framework of a bottom-up holographic model, where the global $SU(4)$ symmetry breaks to $SO(4)$ subgroup. In the holographic model, we found that 125GeV…

High Energy Physics - Phenomenology · Physics 2019-12-30 Yidian Chen , Xiao-Jun Bi , Mei Huang

The technidilaton (TD) is a composite scalar predicted in walking technicolor (WTC), arising as a pseudo Nambu-Goldstone boson associated with the spontaneous breaking of the approximate scale invariance. Due to the Nambu-Goldstone boson's…

High Energy Physics - Phenomenology · Physics 2017-08-23 Shinya Matsuzaki

We study the minimal model of conformal technicolor, an SU(2) gauge theory near a strongly coupled conformal fixed point, with conformal symmetry softly broken by technifermion mass terms. Conformal symmetry breaking triggers chiral…

High Energy Physics - Phenomenology · Physics 2010-10-28 Jared A. Evans , Jamison Galloway , Markus A. Luty , Ruggero Altair Tacchi

We propose a novel class of composite models that feature both a technicolor and a composite Higgs vacuum limit, resulting in an asymmetric dark matter candidate. These Techni-Composite Higgs models are based on an extended left-right…

High Energy Physics - Phenomenology · Physics 2021-11-19 Giacomo Cacciapaglia , Mads T. Frandsen , Wei-Chih Huang , Martin Rosenlyst , Philip Sørensen

Assuming that the observed Higgs-like resonance at the Large Hadron Collider is a technicolor isosinglet scalar (the technicolor Higgs), we argue that the standard model top-induced radiative corrections reduce its dynamical mass towards…

High Energy Physics - Phenomenology · Physics 2013-06-07 Roshan Foadi , Mads T. Frandsen , Francesco Sannino

Walking technicolor, having a large anomalous dimension $\gamma_m \simeq 1$ and approximate scale symmetry, predicts Technidilaton, a light composite Higgs as a pseudo-Nambu-Goldstone boson of the approximate scale symmetry, which can be…

High Energy Physics - Phenomenology · Physics 2013-05-29 Koichi Yamawaki
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