Light scalar mesons in the soft-wall model of AdS/QCD

Colangelo, P.; Fazio, F. De; Giannuzzi, Floriana; Jugeau, F.; Nicotri, S.

doi:10.1103/physrevd.78.055009

Cited by 199 publications

(208 citation statements)

References 43 publications

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“…We already see an apparent difference between representations; eq. (11) allows for an explicit quartic term in π when substituted into the action (2), whereas there is no such term in the case of (10). The consequence of such quartic terms in π will not be addressed here; however, the quartic term strength impacts the pseudoscalar mass spectrum through the parameter κ.…”

Section: The Dual Modelmentioning

confidence: 99%

“…The original model was introduced in [7] and further investigated in [17,13,8,9,10,18]. A modified dilaton profile and quartic interactions were introduced in [11] to separate explicit from spontaneous chiral symmetry breaking.…”

Section: The Dual Modelmentioning

confidence: 99%

“…Such a correspondence removes the main difficulty of strongly coupled systems, the inapplicability of perturbation theory. Many papers have constructed dual models to capture some of the essence of the non-perturbative regime of gauge theories [5,6,7,8,9,10]. The majority of these use the correspondence dictionary to describe QCD-like theories containing a large number of colors N c .…”

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confidence: 99%

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Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD

2011

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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 soft-wall AdS/QCD model incorporated independent sources for explicit and spontaneous chiral symmetry breaking and linear confinement. This model contains a modified dilaton and higher-order interaction terms in the Lagrangian. Within this model we explore the radial pseudoscalar mass spectrum using two different representations of the pion field. We find the mass eigenvalues associated with each representation, show the equivalence between the two, and find good agreement with the pion masses. The Gell-Mann-Oakes-Renner relation is naturally obtained.

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Section: The Dual Modelmentioning

confidence: 99%

Section: The Dual Modelmentioning

confidence: 99%

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confidence: 99%

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Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD

2011

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“…We can make comparison with the soft wall model [8,9] which uses pure AdS space and the action is given by:…”

Section: Ads/qcd Computationsmentioning

confidence: 99%

Quark scalar current correlator in AdS/QCD approach

Ratsimbarison

2010

Nuclear Physics B - Proceedings Supplements

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We use a holographic model to compute the quark scalar current correlator. Already used in other contexts, our model consists in a bulk field theory defined on a deformed Anti de Sitter space and allows to derive analogous results to those of the soft wall model. One issue of such computations is to understand relevant holographic physical constraints which give predictive QCD results rather than to make the inverse step as done until now.

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“…So-called softwall models use a dilaton field as an effective cut-off to limit the penetration of the meson fields into the bulk [6]. The simplest soft-wall models use a quadratic dilaton to recover the linear Regge trajectories, while models that modify the UV behavior of the dilaton more accurately model the ground state masses [7,[9][10][11].…”

Section: Introductionmentioning

confidence: 99%

Dynamical three-field AdS/QCD model

Bartz

Kapusta²

2014

Phys. Rev. D

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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). We present an AdS/CFT-inspired model that describes the spectra of light mesons. The conformal symmetry is broken by a background dilaton field, and chiral symmetry breaking and linear confinement are described by a chiral condensate field. These background fields, along with a background glueball condensate field, are derived from a potential. We describe the construction of the potential, and the calculation of the meson spectra, which match experimental data well. We argue that the presence of the third background field is necessary to properly describe the meson spectra.

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Light scalar mesons in the soft-wall model of AdS/QCD

Cited by 199 publications

References 43 publications

Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD

Pseudoscalar mass spectrum in a soft-wall model of AdS/QCD

Quark scalar current correlator in AdS/QCD approach

Dynamical three-field AdS/QCD model

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