Holographic melting and related properties of mesons in a quark-gluon plasma

Peeters, Kasper; Zamaklar, Marija; Sonnenschein, Jacob

doi:10.1103/physrevd.74.106008

Cited by 188 publications

(336 citation statements)

References 35 publications

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“…The n = 3 metric, known as Sakai-Sugimoto metric [12] (modulo details of the compact 5 dimensional manifold which we ignore here) in the high temperature phase [14], is the near- The Nambu-Goto action is given by…”

Section: General Setupmentioning

confidence: 99%

Aspects of the screening length and drag force in two alternative gravity duals of the quark-gluon plasma

Burikham

2007

J. High Energy Phys.

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We compute the screening length of mesons with different angular momentum J from two gravity dual theories. Both the asymptotically AdS 5 and Sakai-Sugimoto metrics are considered in the calculations. Using the dual description of the quark as a classical string ending on the probe brane, we obtain the interacting potential between the heavy quark and antiquark after rotating the background metric. The result shows that the screening length of mesons with different J is well fit to a J /T . The constant a J is determined for J = 0, 1, 2 by taking advantage of numerical techniques. Finally, we calculate the drag force and relaxation times from the Sakai-Sugimoto metric and compare with the ones obtained in the AdS 5 . The application of our result to charmonium and bottomonium at RHIC and LHC is briefly discussed.

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Section: General Setupmentioning

confidence: 99%

Aspects of the screening length and drag force in two alternative gravity duals of the quark-gluon plasma

Burikham

2007

J. High Energy Phys.

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“…6.5 above) at finite temperature. That model also displays a first-order meson melting transition as described in [195,211]. Additional finite density studies can be found in [173,174,[212][213][214][215][216][217].…”

Section: More Thermodynamicsmentioning

confidence: 99%

“…The properties of heavy-light mesons at finite temperature are determined in [195]. A long D3-D7 string describes a heavy deconfined quark and the energy loss and wake produced by such a string dragged through the plasma has been studied in [196][197][198][199].…”

Section: Mesons In the Ads Black-hole Backgroundmentioning

confidence: 99%

Mesons in gauge/gravity duals

et al. 2008

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Abstract. We review recent progress in studying mesons within gauge/gravity duality, in the context of adding flavour degrees of freedom to generalizations of the AdS/CFT correspondence. Our main focus is on the "top-down approach" of considering models constructed within string theory. We explain the stringtheoretical constructions in detail, aiming at non-specialists. These give rise to a new way of describing strongly coupled confining large-N gauge theories similar to large-N QCD. In particular, we consider gravity dual descriptions of spontaneous chiral symmetry breaking, and compare with lattice results. A further topic covered is the behaviour of flavour bound states in finite-temperature field theories dual to a gravity background involving a black hole. We also describe the "bottom up" phenomenological approach to mesons within AdS/QCD. Some previously unpublished results are also included.PACS. 11.15.-q Gauge field theories -11.25.Tq Gauge/string duality -12.40.Yx Hadron mass models and calculations -14.40.-n Mesons

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“…The behavior of low-spin mesons, which we will focus on in this paper, is described by small fluctuations of the flavor D8-branes, which can be treated (for N f ≪ N c ) as probes embedded in the D4-brane background. The meson spectra at zero chemical potential and non-zero temperature have been analyzed in [31].…”

Section: Jhep02(2008)071mentioning

confidence: 99%

Rho meson condensation at finite isospin chemical potential in a holographic model for QCD

Aharony

Peeters

Sonnenschein

et al. 2008

J. High Energy Phys.

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We analyze the effect of an isospin chemical potential µ I in the Sakai-Sugimoto model, which is the string dual of a confining gauge theory related to large N c QCD, at temperatures below the chiral symmetry restoration temperature. For small chemical potentials we show that the results agree with expectations from the low-energy chiral Lagrangian, and the charged pion condenses. When the chemical potential reaches a critical value µ I = µ crit ≃ 1.7m ρ , the lowest vector meson (the "rho meson") becomes massless, and it condenses (in addition to the pion condensate) for µ I > µ crit . This spontaneously breaks the rotational symmetry, as well as a residual U(1) flavor symmetry. We numerically construct the resulting new ground state for µ I > µ crit .

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Holographic melting and related properties of mesons in a quark-gluon plasma

Cited by 188 publications

References 35 publications

Aspects of the screening length and drag force in two alternative gravity duals of the quark-gluon plasma

Aspects of the screening length and drag force in two alternative gravity duals of the quark-gluon plasma

Mesons in gauge/gravity duals

Rho meson condensation at finite isospin chemical potential in a holographic model for QCD

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