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Effective Theories for QCD-like at TeV Scale

Lu, Jie LU and Bijnens, Johan LU (2016) In Nuclear and Particle Physics Proceedings 273-275. p.1618-1623
Abstract

We study the Effective Field Theory of three QCD-like theories, which can be classified by having quarks in a complex, real or pseudo-real representations of the gauge group. The Lagrangians are written in a very similar way so that the calculations can be done using techniques from Chiral Perturbation Theory (ChPT). We calculated the vacuum-expectation-value, the mass and the decay constant of pseudo-Goldstone Bosons up to next-to-next-to leading order (NNLO) [1]. The various channels of general n flavour meson-meson scattering of the three theories are systematically studied and calculated up to NNLO [2]. We also calculated the vector, axial-vector, scalar, pseudo-scalar two-point functions and pseudo-scalar decay constant up NNLO... (More)

We study the Effective Field Theory of three QCD-like theories, which can be classified by having quarks in a complex, real or pseudo-real representations of the gauge group. The Lagrangians are written in a very similar way so that the calculations can be done using techniques from Chiral Perturbation Theory (ChPT). We calculated the vacuum-expectation-value, the mass and the decay constant of pseudo-Goldstone Bosons up to next-to-next-to leading order (NNLO) [1]. The various channels of general n flavour meson-meson scattering of the three theories are systematically studied and calculated up to NNLO [2]. We also calculated the vector, axial-vector, scalar, pseudo-scalar two-point functions and pseudo-scalar decay constant up NNLO order [3]. The analytic expressions of the S parameter for the three different QCD-like theories are obtained at TeV scale. Our results are useful for chiral extrapolation in lattice calculation on theory of strong dynamical and finite baryon density.

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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Chiral extrapolation, Chiral Lagrangian, Composite Models, Lattice Gauge Field Theories, Spontaneous Symmetry Breaking, Technicolor
in
Nuclear and Particle Physics Proceedings
volume
273-275
pages
6 pages
publisher
Elsevier
external identifiers
  • scopus:84973138668
ISSN
2405-6014
DOI
10.1016/j.nuclphysbps.2015.09.262
language
English
LU publication?
yes
id
4c2c8453-ac9b-41a0-a43f-5bc37126b4f0
date added to LUP
2017-02-06 11:48:38
date last changed
2017-02-06 11:48:38
@article{4c2c8453-ac9b-41a0-a43f-5bc37126b4f0,
  abstract     = {<p>We study the Effective Field Theory of three QCD-like theories, which can be classified by having quarks in a complex, real or pseudo-real representations of the gauge group. The Lagrangians are written in a very similar way so that the calculations can be done using techniques from Chiral Perturbation Theory (ChPT). We calculated the vacuum-expectation-value, the mass and the decay constant of pseudo-Goldstone Bosons up to next-to-next-to leading order (NNLO) [1]. The various channels of general n flavour meson-meson scattering of the three theories are systematically studied and calculated up to NNLO [2]. We also calculated the vector, axial-vector, scalar, pseudo-scalar two-point functions and pseudo-scalar decay constant up NNLO order [3]. The analytic expressions of the S parameter for the three different QCD-like theories are obtained at TeV scale. Our results are useful for chiral extrapolation in lattice calculation on theory of strong dynamical and finite baryon density.</p>},
  author       = {Lu, Jie and Bijnens, Johan},
  issn         = {2405-6014},
  keyword      = {Chiral extrapolation,Chiral Lagrangian,Composite Models,Lattice Gauge Field Theories,Spontaneous Symmetry Breaking,Technicolor},
  language     = {eng},
  month        = {04},
  pages        = {1618--1623},
  publisher    = {Elsevier},
  series       = {Nuclear and Particle Physics Proceedings},
  title        = {Effective Theories for QCD-like at TeV Scale},
  url          = {http://dx.doi.org/10.1016/j.nuclphysbps.2015.09.262},
  volume       = {273-275},
  year         = {2016},
}