English
Related papers

Related papers: Linear Confinement for Mesons and Nucleons in AdS/…

200 papers

We address the old difficulty in accommodating the scalar quark-antiquark confining potential together with chiral symmetry breaking. We develop a quark confining potential inspired in the QCD scalar flux tube. The coupling to quarks…

High Energy Physics - Phenomenology · Physics 2007-05-23 P. Bicudo , G. M. Marques

The main features of QCD, e.g. confinement, chiral symmetry breaking, Regge trajectories are naturally and economically explained in the framework of the Field Correlator Method (FCM). The same method correctly predicts the spectrum of…

High Energy Physics - Phenomenology · Physics 2017-08-23 Yu. A. Simonov

We study the scalar glueball and vector meson spectral functions in a hot and dense medium by means of the soft-wall holographic model of QCD. Finite temperature and density effects are implemented through the AdS/RN metric. We analyse the…

High Energy Physics - Phenomenology · Physics 2012-05-28 Pietro Colangelo , Floriana Giannuzzi , Stefano Nicotri

We present a theoretical framework allowing to make an explicit connection between the phenomenology of QCD, namely the properties of the gluon correlator and Wilson loops, and a particular relativistic model for the description of nuclear…

Nuclear Theory · Physics 2025-03-21 Guy Chanfray , Magda Ericson , Hubert Hansen , Jérôme Margueron , Marco Martini

We show that the nucleon spectrum in a hard-wall AdS/QCD model can be improved by use of a relatively large IR cutoff. All of the spin-1/2 nucleon masses listed in PDG can be fit quite well within 11%. The average error is remarkably only…

High Energy Physics - Phenomenology · Physics 2010-07-02 Peng Zhang

We study the hadronic and radiative couplings of the $f_2(1270)$ meson within the hard- and soft-wall models of AdS/QCD. The results for the tensor meson-nucleon-nucleon coupling ($g_{f_2NN}$) and tensor meson-photon-vector meson coupling…

High Energy Physics - Phenomenology · Physics 2024-02-07 Shahin Mamedov , Zeynab Hashimli , Shahriyar Jafarzade

We propose a general method for finding a string-like meson spectrum which is based on a certain condition for the breaking of closed gluon string. A model is constructed that successfully realizes the proposed method. The model is based on…

High Energy Physics - Phenomenology · Physics 2022-05-27 Sergey Afonin , Timofey Solomko

We discuss the possible influence of fundamental QCD properties such as spontaneous chiral symmetry breaking and nucleon substructure on nuclear matter properties. We propose a chiral version of the relativistic $\sigma-\omega$ model in…

Nuclear Theory · Physics 2011-07-19 G. Chanfray , M. Ericsson , E. Massot

We study a self-bound dense object in the hard wall model. We consider a spherically symmetric dense object which is characterized by its radial density distribution and non-uniform but spherically symmetric chiral condensate. For this we…

High Energy Physics - Phenomenology · Physics 2014-11-21 Kyung Kiu Kim , Youngman Kim , Yumi Ko

We investigate the AdS/QCD duality for the two-point correlation functions of the lowest dimension scalar meson and scalar glueball operators, in the case of the Soft Wall holographic model of QCD. Masses and decay constants as well as…

High Energy Physics - Phenomenology · Physics 2011-04-07 F. Jugeau

In this contribution we present a a phenomenological analysis of the scalar glueball and scalar meson spectra within AdS/QCD models in the bottom-up approach. In particular, we consider a Light-Front QCD framework which allows to relate the…

High Energy Physics - Phenomenology · Physics 2020-01-08 Matteo Rinaldi

Recently Polchinski and Strassler reproduced the high energy QCD scaling at fixed angles from a gauge string duality inspired in AdS/CFT correspondence. In their approach a confining gauge theory is taken as approximately dual to an AdS…

High Energy Physics - Theory · Physics 2008-11-26 Henrique Boschi-Filho , Nelson R. F. Braga

We study the physics with finite nuclear density in the framework of AdS/QCD with holographic baryon field included. Based on a mean field type approach, we introduce the nucleon density as a bi-fermion condensate of the lowest mode of the…

High Energy Physics - Phenomenology · Physics 2008-11-26 Youngman Kim , Chang-Hwan Lee , Ho-Ung Yee

The AdS/CFT correspondence between theories in AdS space and conformal field theories in physical space-time provides an analytic, semi-classical, color-confining model for strongly-coupled QCD. The soft-wall AdS/QCD model modified by a…

High Energy Physics - Phenomenology · Physics 2017-08-23 Stanley J. Brodsky , Guy F. de Téramond , Alexandre Deur

We review some of the most recent work on confinement in 4d gauge theories with a massive scalar field (dilaton). Emphasis is put on the derivation of confining analytical solutions to the Coulomb problem versus dilaton effective couplings…

High Energy Physics - Phenomenology · Physics 2008-11-26 Mohamed Chabab

Physical consistency of quantum fields in anti-de Sitter space time requires that the space must be compactified by the inclusion of a boundary where appropriate conditions are imposed. An interpretation for the presence of this boundary is…

High Energy Physics - Theory · Physics 2008-11-26 Henrique Boschi-Filho , Nelson R. F. Braga

The idea of ``soft'' confinement when the lifetime of hadron with respect to quark-gluon channel of decay is greater or at least of the order of some characteristic time for our Universe is considered. Within the framework of a model of…

High Energy Physics - Theory · Physics 2007-05-23 V. E. Kuzmichev , V. V. Kuzmichev

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

We study the properties of the dilaton in a soft-wall background using two solutions of the Einstein equations. These solutions contain an asymptotically AdS metric with a nontrivial scalar profile that causes both the spontaneous breaking…

High Energy Physics - Theory · Physics 2015-02-26 Peter Cox , Tony Gherghetta

We study the holographic QCD in the hadronic medium by using the soft wall model. We discuss the Hawking-Page transition between Reissner-Nordstr\"{o}m AdS black hole and thermal charged AdS of which the geometries correspond to…

High Energy Physics - Theory · Physics 2014-11-13 Chanyong Park , Do-Young Gwak , Bum-Hoon Lee , Yumi Ko , Sunyoung Shin