1/Ncand 1/npreasymptotic corrections to current-current correlators

Mondejar, Jorge; Pineda, A. Morelos

doi:10.1088/1126-6708/2008/06/039

Cited by 9 publications

(16 citation statements)

References 35 publications

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“…Later, in [91], it was claimed that this model was inconsistent with the OPEs, but the arguments of [91] were called into question in [92], due to subtleties in the regularization of infinite sums like (4.21). More recently, works like [93][94][95] claim that the Regge slopes should be equal whereas the opposite conclusion was reached in [96][97][98]. We have found above that in our model, there are different asymptotic Regge slopes Λ A > Λ V .…”

Section: On the Opes And The Slope Of The Regge Trajectoriesmentioning

confidence: 42%

Thermodynamics of SU(N) Yang-Mills theories in 2 + 1 dimensions II — The deconfined phase

Caselle

Castagnini

Feo

et al. 2012

J. High Energ. Phys.

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A simple holographic model is presented and analyzed that describes chiral symmetry breaking and the physics of the meson sector in QCD. This is a bottom-up model that incorporates string theory ingredients like tachyon condensation which is expected to be the main manifestation of chiral symmetry breaking in the holographic context. As a model for glue the Kuperstein-Sonnenschein background is used. The structure of the flavor vacuum is analyzed in the quenched approximation. Chiral symmetry breaking is shown at zero temperature. Above the deconfinement transition chiral symmetry is restored. A complete holographic renormalization is performed and the chiral condensate is calculated for different quark masses both at zero and non-zero temperatures. The 0 ++ , 0 −+ , 1 ++ , 1 −− meson trajectories are analyzed and their masses and decay constants are computed. The asymptotic trajectories are linear. The model has one phenomenological parameter beyond those of QCD that affects the 1 ++ , 0 −+ sectors. Fitting this parameter we obtain very good agreement with data. The model improves in several ways the popular hard-wall and soft wall bottom-up models.

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Section: On the Opes And The Slope Of The Regge Trajectoriesmentioning

confidence: 42%

Thermodynamics of SU(N) Yang-Mills theories in 2 + 1 dimensions II — The deconfined phase

Caselle

Castagnini

Feo

et al. 2012

J. High Energ. Phys.

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“…The speed of the convergence is best visible 21 The question whether the slopes should be the same in QCD is unsettled [131][132][133][134][135][136][137][138][139], but usually they are assumed to be, which can be obtained for potentials I by changing the IR asymptotics of w(λ) [42].…”

Section: Convergence Of the Spectral Representationmentioning

confidence: 99%

Massive holographic QCD in the Veneziano limit

Järvinen

2015

J. High Energ. Phys.

104

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QCD at finite, flavor independent quark mass is analyzed by using bottom-up holography in the Veneziano limit, where the backreaction of quarks to the gluon dynamics is fully included. The dependence on the quark mass of observables such as the bound state masses, the chiral condensate, the S-parameter, and the critical temperatures is studied. Many of the results are argued to be universal, i.e., independent of the details of the holographic model, and compared to explicit computations in the V-QCD models. The effect of adding four-fermion operators in QCD is also discussed.

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“…[22,23]). Our aim is to connect the OPE, the position of the peaks and the pre-asymptotic behaviour of the series.…”

Section: Model With Finite Width Resonancesmentioning

confidence: 99%

“…In ref. [23], the consequences of the matching onto OPE for large n were worked out. We will extend ref.…”

Section: Model With Finite Width Resonancesmentioning

confidence: 99%

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A model of duality violations

Descotes-Genon

Roig

2014

Nuclear Physics B - Proceedings Supplements

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1/N_cand 1/npreasymptotic corrections to current-current correlators

Cited by 9 publications

References 35 publications

Thermodynamics of SU(N) Yang-Mills theories in 2 + 1 dimensions II — The deconfined phase

Thermodynamics of SU(N) Yang-Mills theories in 2 + 1 dimensions II — The deconfined phase

Massive holographic QCD in the Veneziano limit

A model of duality violations

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