Meson correlators in finite temperature lattice QCD

Forcrand, Philippe de; Pérez, Margarita Garcı́a; Hashimoto, T.; Hioki, S.; Matsufuru, Hideo; Miyamura, O.; Nakamura, Atsushi; Stamatescu, Ion-Olimpiu; Takaishi, Tetsuya; Umeda, T.

doi:10.1103/physrevd.63.054501

Cited by 62 publications

(39 citation statements)

References 39 publications

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“…The use of Gauss law, non-local concept leads to a self-consistent descriptions of both screening and damping effects. Recently, direct lattice determination of the quarkonium spectral function have been attempted [10]. However, these calculations are again plagued by the model assumptions as there are very finite number of points in time direction and data is of statisctical nature in these lattice studies.…”

Section: A Heavy Quark Complex Potentialmentioning

confidence: 99%

“…We can get the physical insight of the medium dependence by analyzing the behavior of spectral function of heavy quarkonium. The two useful approaches to study the production and suppression via spectral function of heavy quarkonium are potential method and lattice approach [3][4][5][6][7][8][9][10]. As we all know that lattice QCD method is first principle tool to study the properties and behavior of heavy quarkonium thus none of the potential method can be alternative to this approach.…”

Section: Introductionmentioning

confidence: 99%

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Heavy quarkonia in a potential model: binding energy, decay width, and survival probability

2018

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Recently a lot of progress has been made in deriving the heavy quark potential within a QCD medium. In this article we have considered heavy quarkonium in a hot quark gluon plasma phase.The heavy-quark potential has been modeled properly for short as well as long distances. The potential at long distances is modeled as a QCD string which is screened at the same scale as the Coloumb field. We have numerically solved the 1+1-dimensional Schrodinger equation for this potential and obtained the eigen wavefunction and binding energy for the 1S and 2S states of charmonium and bottomonium. Further, we have calculated the decay width and dissociation temperature of quarkonium states in the QCD plasma. Finally, we have used our recently proposed unified model with these new values of decay widths to calculate the survival probability of the various quarkonium states with respect to centrality at relativistic heavy ion collider (RHIC) and large hadron collider (LHC) energies. This study provides a unified, consistent and comprehensive description of spectroscopic properties of various quarkonium states at finite temperatures along with their nuclear modification factor at different collision energies.

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Section: A Heavy Quark Complex Potentialmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Heavy quarkonia in a potential model: binding energy, decay width, and survival probability

2018

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“…2 Moreover, lattice results indicate that finite-width mesonic resonances indeed survive above the deconfinement temperature (see e.g. [8][9][10]). …”

Section: Introductionmentioning

confidence: 99%

Mesons versus quasi-normal modes: undercooling and overheating

Paredes¹,

Peeters²,

Zamaklar³

2008

J. High Energy Phys.

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Use policyThe full-text may be used and/or reproduced, and given to third parties in any format or medium, without prior permission or charge, for personal research or study, educational, or not-for-prot purposes provided that:• a full bibliographic reference is made to the original source • a link is made to the metadata record in DRO • the full-text is not changed in any way The full-text must not be sold in any format or medium without the formal permission of the copyright holders.Please consult the full DRO policy for further details. Abstract: In holographic models of gauge theories with matter, there generically exists a first order phase transition in which mesons dissociate. We perform a careful analysis of the meson and quasi-particle spectra in the overheated resp. undercooled regimes close to the junction of the two phases. We show that all overheated finite meson masses eventually become infinitely degenerate, which implies that any connection to the quasi-particle spectrum is more subtle than previously suggested. For the Sakai-Sugimoto model no smooth connection between these spectra is possible.

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“…It is believed that heavy quark bound state can be alive in QGP, including J/ψ meson and some multi-quark bound states [26]. We call these multi-quark bound states baryons, though they may be different from baryons we see when they survive within QGP.…”

Section: Conclusion and Discussionmentioning

confidence: 99%

Holographic melting of heavy baryons in plasma with gluon condensation

Sin

Zhou

2009

J. High Energy Phys.

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We propose a Dirac-Born-Infeld ( DBI ) D5 vertex brane plus N c fundamental strings configuration to describe a baryon probe in strongly coupled gauge theory with gluon condensation at finite temperature via AdS/CFT correspondence. We investigate properties of this configuration in a dilaton deformed AdS 5 ×S 5 background, in which IIB string theory is dual to super Yang-Mills theory in a state with a constant self-dual gauge field (F mn = F * mn ) background. We find that for most values of temperature T and gluon condensation parameter q (q = π 2 < F mn F mn >), there always exists a screening length L s . The relation L s ∼ 1 T has been checked. We give the q dependence of L s . We calculate the boost velocity v(v = − tanh η) and angular velocity ω dependence of L s for a baryon probe, and obtain L s = L 0 * (1 − v 2 ) 1/4 for large v and L s ∼ ω −1 , which are consistent with those dependence relations in the point brane plus strings case, and find that the usual relations have been modified by q. We also calculate the mass of baryon and find T dependence of baryon mass.

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Meson correlators in finite temperature lattice QCD

Cited by 62 publications

References 39 publications

Heavy quarkonia in a potential model: binding energy, decay width, and survival probability

Heavy quarkonia in a potential model: binding energy, decay width, and survival probability

Mesons versus quasi-normal modes: undercooling and overheating

Holographic melting of heavy baryons in plasma with gluon condensation

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