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相关论文: Towards a consistent AdS/QCD dictionary

200 篇论文

The soft-wall AdS/QCD model, modified by a positive-sign dilaton metric, leads to a remarkable one-parameter description of nonperturbative hadron dynamics. The model predicts a zero-mass pion for zero-mass quarks and a Regge spectrum of…

高能物理 - 唯象学 · 物理学 2011-03-02 Stanley J. Brodsky , Guy F. de Teramond

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…

高能物理 - 唯象学 · 物理学 2016-09-14 Zhen Fang , Yue-Liang Wu , Lin Zhang

I describe recent progress towards a theory of the NN force which captures the consequences of QCD's chiral symmetry and the pattern of its breaking, and is formulated as an expansion in a ratio of low and high mass scales, M_{lo}/M_{hi}.…

核理论 · 物理学 2013-02-26 Daniel R. Phillips

We investigate the softwall AdS/CFT model. We specifically looked at the Pomeron, leading Regge contribution to a scattering process and used it to fit deep inelastic scattering data from the HERA collaboration. We find that the model fits…

高能物理 - 唯象学 · 物理学 2014-12-11 Richard Brower , Marko Djurić , Timothy Raben , Chung-I Tan

AdS/QCD is an extra-dimensional approach to modeling hadronic physics, motivated by the AdS/CFT correspondence in string theory. AdS/QCD models are often more accurate than would have been expected at energies below a few GeV. We address…

高能物理 - 唯象学 · 物理学 2010-02-16 Joshua Erlich

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…

高能物理 - 理论 · 物理学 2014-11-13 Chanyong Park , Do-Young Gwak , Bum-Hoon Lee , Yumi Ko , Sunyoung Shin

The AdS/CFT correspondence is an exact duality between string theory in anti-de Sitter space and conformal field theories on its boundary. Inspired in this correspondence some relations between strings and non conformal field theories have…

高能物理 - 理论 · 物理学 2008-11-26 Henrique Boschi-Filho , Nelson R. F. Braga

We present a study of proton GPDs in both momentum and position spaces using proton wavefunction obtained from AdS/ QCD. Here we consider the soft wall model. The results are compared with a phenomenological model of proton GPDs.

高能物理 - 唯象学 · 物理学 2014-12-01 Dipankar Chakrabarti , Chandan Mondal

Dynamic AdS/QCD is a holographic model of strongly coupled gauge theories with the dynamics included through the running anomalous dimension of the quark bilinear, gamma. We apply it to describe the physics of massive quarks in the…

高能物理 - 唯象学 · 物理学 2014-10-17 Nick Evans , Marc Scott

We consider chiral symmetry breaking AdS / QCD models with cubic and quartic potentials in the scalar sector and a z dependent mass for scalars in the bulk. In these models it is possible to get good mesonic spectra using current quark…

高能物理 - 唯象学 · 物理学 2011-08-08 Alfredo Vega , Ivan Schmidt

The dynamics of an expanding hadron fluid at temperatures below the chiral transition is studied in the framework of AdS/CFT correspondence. We establish a correspondence between the asymptotic AdS geometry in the 4+1-dimensional bulk with…

高能物理 - 理论 · 物理学 2015-04-01 Neven Bilić , Silvije Domazet , Dijana Tolić

We explicitly demonstrate how to correctly define the hadronic parton distributions (PDFs, TMDs, and GPDs) in the soft-wall AdS/QCD approach, based on the use of a quadratic dilaton field, providing confinement and spontaneous breaking of…

高能物理 - 唯象学 · 物理学 2020-08-12 Valery E. Lyubovitskij , Ivan Schmidt

We put forward a new bottom-up AdS/QCD holographic model bearing a distinct treatment of the pion fields. We argue that a standard approach to the pion description is neither transparent nor totally satisfactory. In the paper we provide a…

高能物理 - 唯象学 · 物理学 2020-04-24 Domenec Espriu , Alisa Katanaeva

In this paper we will show some applications achieved within type IIB superstring backgrounds since the emergence of the AdS/CFT correspondence. This correspondence relates a super Yang-Mills (SYM) theory, with strong coupling, and a type…

高能物理 - 理论 · 物理学 2018-06-18 Eduardo Folco Capossoli

The AdS/QCD models are known to be tightly related with the QCD sum rules in the large-Nc (called also planar) limit. Rewriting the theory of infinite tower of free stable mesons expected in the large-Nc QCD as a five-dimensional theory we…

高能物理 - 唯象学 · 物理学 2011-01-27 S. S. Afonin

In this paper we describe qualitatively some aspects of the holographic QCD. Inspired by a successfull 4D description, we try to separate the Confinement and the Chiral Symmetry Breaking dynamics. We also discuss the realization of the…

高能物理 - 唯象学 · 物理学 2009-12-23 Jacopo Bechi

The soft-wall model, emerging as bottom-up holographic scenario anchored in the AdS/CFT correspondence, displays the disappearance of normalisable modes referring to vector mesons at a temperature $T_{\dis}$ depending on the chemical…

高能物理 - 理论 · 物理学 2017-11-16 Rico Zöllner , Falk Wunderlich , Burkhard Kampfer

We review our recent work on four topics in strong-interaction physics from the perspective of the gauge/gravity correspondence. In particular, we discuss (i) the construction of the ``metric soft wall'' dual for holographic QCD which…

高能物理 - 唯象学 · 物理学 2010-07-12 Hilmar Forkel

Bottom-up holographic models of QCD, inspired by the AdS/CFT correspondence, have shown a remarkable degree of phenomenological success. However, they rely on a number of bold assumptions. We investigate the reliability of one of the key…

高能物理 - 唯象学 · 物理学 2010-03-16 Aleksey Cherman , Thomas D. Cohen , Elizabeth S. Werbos

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…

高能物理 - 唯象学 · 物理学 2010-07-06 Peng Zhang