Analysis of a dilaton EFT for lattice data

@article{Appelquist2017AnalysisOA,
  title={Analysis of a dilaton EFT for lattice data},
  author={Thomas Appelquist and James Ingoldby and Maurizio Piai},
  journal={Journal of High Energy Physics},
  year={2017},
  volume={2018},
  pages={1-17}
}
A bstractIn a recent paper, we developed and applied a dilaton-based effective field theory (EFT) to the analysis of lattice-simulation data for a class of confining gauge theories with near-conformal infrared behavior. It was employed there at the classical level to the SU(3) gauge theory with eight Dirac fermions in the fundamental representation. Here, we explore the structure of the EFT further. We examine its application to lattice data (newly updated) for the SU(3) theory with eight Dirac… 

Dilaton Effective Field Theory

: We first review dilaton effective field theory (dEFT), as applied to lattice data for a class of confining gauge theories with near–conformal infrared behavior. The dEFT includes the dilaton

Dilaton potential and lattice data

We study an effective field theory (EFT) describing the interaction of an approximate dilaton with a set of pseudo-Nambu-Goldstone bosons (pNGBs). The EFT is inspired by, and employed to analyse,

Application of dilaton chiral perturbation theory to Nf=8 , SU(3) spectral data

We extend dilaton chiral perturbation theory (dChPT) to include the taste splittings in the Nambu--Goldstone sector observed in lattice simulations of near-conformal theories with staggered fermions.

Composite two-Higgs doublet model from dilaton effective field theory

Explorations beyond dilaton chiral perturbation theory in the eight-flavor SU(3) gauge theory

We continue our study of spectroscopy data for the SU(3) gauge theory with eight fundamental fermions, motivated by the effective field theory framework of dilaton chiral perturbation theory (dChPT).

Nearly Conformal Composite Higgs Model.

The phenomenology of the model is studied and the amount of tuning required to ensure consistency with current direct and indirect bounds on new physics is discussed, highlighting the role of the dilaton field.

Dilaton chiral perturbation theory and applications

We review dilaton chiral perturbation theory (dChPT), the effective low-energy theory for the light sector of near-conformal, confining theories. dChPT provides a systematic expansion in both the

Dilaton EFT from p-regime to RMT in the $\epsilon$-regime

New results are reported from tests of a low-energy effective field theory (EFT) that includes a dilaton field to describe the emergent light scalar with ${ 0^{++} }$ quantum numbers in the strongly

Tantalizing dilaton tests from a near-conformal EFT

The dilaton low-energy effective field theory (EFT) of an emergent light scalar is probed in the paradigm of strongly coupled near-conformal gauge theories. These studies are motivated by models

Linear sigma EFT for nearly conformal gauge theories

We construct a generalized linear sigma model as an effective field theory (EFT) to describe nearly conformal gauge theories at low energies. The work is motivated by recent lattice studies of gauge

References

SHOWING 1-10 OF 30 REFERENCES

Dilaton EFT framework for lattice data

A bstractWe develop an effective-field-theory (EFT) framework to analyze the spectra emerging from lattice simulations of a large class of confining gauge theories. Simulations of these theories, for

The running coupling of the minimal sextet composite Higgs model

A bstractWe compute the renormalized running coupling of SU(3) gauge theory coupled to Nf = 2 flavors of massless Dirac fermions in the 2-index-symmetric (sextet) representation. This model is of

Conformal versus confining scenario in SU(2) with adjoint fermions

The masses of the lowest-lying states in the meson and in the gluonic sector of an SU(2) gauge theory with two Dirac flavors in the adjoint representation are measured on the lattice at a fixed value

Toward the minimal realization of a light composite Higgs

Work in progress is reported on a particularly interesting gauge theory with a fermion doublet in the two-index symmetric (sextet) representation of the SU(3) color gauge group. Extending previous

Hyperscaling relations in mass-deformed conformal gauge theories

We present a number of analytical results which should guide the interpretation of lattice data in theories with an infrared fixed point (IRFP) deformed by a mass term ?L=-mq? q. From renormalization

Effective field theory for pions and a dilatonic meson

Numerical simulations of QCD-like theories which are chirally broken but exhibit a very small beta function reveal a flavor-singlet scalar, or "dilatonic meson," which is much lighter than any other

Strongly interacting dynamics and the search for new physics at the LHC

We present results for the spectrum of a strongly interacting SU(3) gauge theory with Nf = 8 light fermions in the fundamental representation. Carrying out nonperturbative lattice calculations at the

The twelve-flavor β-function and dilaton tests of the sextet scalar

We discuss near-conformal gauge theories beyond the standard model (BSM) where interesting results on the twelve-flavor β-function of massless fermions in the fundamental representation of the SU(3)