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Related papers: Infrared-Improved Soft-wall AdS/QCD Model for Meso…

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We construct an infrared-improved soft-wall AdS/QCD model for baryons by considering the infrared-modified 5D conformal mass and Yukawa coupling of the bulk baryon field. The model is also built by taking into account the parity-doublet…

High Energy Physics - Phenomenology · Physics 2016-02-17 Zhen Fang , Dan-Ning Li , Yue-Liang Wu

A soft-wall anti-de Sitter/QCD model with a modified five-dimensional metric at the infrared region is constructed to obtain a nontrivial dilaton solution, which incorporates the chiral symmetry breaking and linear confinement. By taking…

High Energy Physics - Phenomenology · Physics 2010-01-28 Yan-Qin Sui , Yue-Liang Wu , Zhi-Feng Xie , Yi-Bo Yang

The purpose of this paper is to further study the soft-wall AdS/QCD model with constrained IR background. By including a quartic bulk scalar potential we study various meson and nucleon spectra. This model naturally realizes the…

High Energy Physics - Phenomenology · Physics 2015-06-05 Sheng Liu , Peng Zhang

The Anti-de Sitter Space/Conformal Field Theory (AdS/CFT) correspondence may offer new and useful insights into the non-perturbative regime of strongly coupled gauge theories such as Quantum Chromodynamics (QCD). Recently a modified…

High Energy Physics - Phenomenology · Physics 2011-02-25 Thomas M. Kelley , Sean P. Bartz , Joseph I. Kapusta

The predictive soft-wall AdS/QCD model with a modified 5D metric at the infrared region is constructed to obtain a non-trivial dilaton solution for three flavor quarks $u$, $d$ and $s$. Such a model is shown to incorporate both the chiral…

High Energy Physics - Phenomenology · Physics 2011-05-10 Yan-Qin Sui , Yue-Liang Wu , Yi-Bo Yang

We study light scalar mesons in the AdS/QCD soft-wall model with a background dilaton field, to investigate the features of this approach in describing QCD properties in the strong coupling regime. We find that the masses and decay…

High Energy Physics - Phenomenology · Physics 2009-06-25 Fulvia De Fazio

We study light scalar mesons in the AdS/QCD soft-wall model with a background dilaton field. The masses and decay constants are compatible with experiment and QCD determinations if $a_0(980)$ and $f_0(980)$ are identified as the lightest…

High Energy Physics - Phenomenology · Physics 2008-12-18 P. Colangelo , F. De Fazio , F. Giannuzzi , F. Jugeau , S. Nicotri

We modified the current soft wall model by considering the Non-conformal aspect low energy QCD.

High Energy Physics - Phenomenology · Physics 2012-02-28 Keita Kaniba Mady , Dicko Younouss Hameye

We study further the soft-wall AdS/QCD model with a cubic potential for the bulk scalar. We analyze the spectra of pseudoscalar, scalar, vector and axial-vector mesons. We also study the spin-1/2 nucleon spectrum and the pion-nucleon…

High Energy Physics - Phenomenology · Physics 2010-11-15 Peng Zhang

I propose to change the sign of the dilaton in the infrared~(IR) soft-wall AdS/QCD model, in order to implement confinement. The deformed model exhibits interesting properties, especially in describing chiral symmetry breaking. The…

High Energy Physics - Phenomenology · Physics 2010-10-27 Fen Zuo

The AdS/CFT correspondence may offer new and useful insights into the non- perturbative regime of strongly coupled gauge theories such as Quantum Chromodynamics. Soft-wall AdS/QCD models have reproduced the linear trajectories of meson…

High Energy Physics - Phenomenology · Physics 2015-06-17 Sean P. Bartz , Joseph I. Kapusta

In this paper a model incorporating chiral symmetry breaking and dynamical soft-wall AdS/QCD is established. The AdS/QCD background is introduced dynamically as suggested by Wayne de Paula etc al and chiral symmetry breaking is discussed by…

High Energy Physics - Phenomenology · Physics 2012-01-17 Qi Wang , An Min Wang

By requiring the correct Regge behavior in both meson and nucleon sectors, we determine the infrared asymptotic behavior of various background fields in the soft-wall AdS/QCD model, including the dilaton, the warp factor, and the scalar…

High Energy Physics - Phenomenology · Physics 2015-05-28 Ya-Li He , Peng Zhang

We investigate in detail the chiral thermal transition of QCD in an improved soft-wall AdS/QCD model with a simply modified 5D conformal mass of the bulk scalar field. We also present a calculation in this model for the light meson spectra…

High Energy Physics - Phenomenology · Physics 2016-09-14 Zhen Fang , Yue-Liang Wu , Lin Zhang

Dynamic AdS/QCD is a modification of AdS/QCD that includes the running of the anomalous dimension of the q-bar q quark bilinear and in which the generation of the constituent quark mass plays the role of an IR wall. The model allows one to…

High Energy Physics - Phenomenology · Physics 2015-11-25 Nick Evans , Peter Jones , Marc Scott

We analyze here the mass spectrum of light vector and scalar mesons applying a novel approach where a modified soft wall model that includes a UV-cutoff at a finite $z$-position in the AdS space is used, thus introducing an extra energy…

High Energy Physics - Phenomenology · Physics 2017-12-04 Santiago Cortés , Miguel Ángel Martín Contreras , José Rolando Roldán

By using a new parametrization of the dilaton field and including a cubic term in the bulk scalar potential, we realize linear confinement in both meson and nucleon sectors within the framework of soft-wall AdS/QCD. At the same time this…

High Energy Physics - Phenomenology · Physics 2010-07-06 Peng Zhang

We incorporate chiral symmetry breaking in a soft-wall version of the AdS/QCD model by using a modified dilaton profile and a quartic term in the bulk scalar potential. This allows one to separate the dependence on spontaneous and explicit…

High Energy Physics - Phenomenology · Physics 2015-05-13 Joseph I. Kapusta , Thomas M. Kelley , Tony Gherghetta

We give a further study on the improved soft-wall AdS/QCD model with two flavors. The chiral transition behaviors are studied in the case of finite chemical potential, with the chiral phase diagram obtained at zero quark mass. The thermal…

High Energy Physics - Phenomenology · Physics 2019-10-08 Zhen Fang , Lin Zhang

Phenomenological AdS/QCD models, like hard wall and soft wall, provide hadronic mass spectra in reasonable consistency with experimental and (or) lattice results. These simple models are inspired in the AdS/CFT correspondence and assume…

High Energy Physics - Theory · Physics 2016-11-01 Nelson R. F. Braga , M. A. Martin Contreras , Saulo Diles
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