Quarkonia and heavy-quark relaxation times in the quark-gluon plasma

Riek, F.; Rapp, Ralf

doi:10.1103/physrevc.82.035201

Cited by 118 publications

(93 citation statements)

References 77 publications

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“…On the other hand our results differ significantly from the spectra obtained in the T-matrix study of ref. [60]. There the authors use purely real model potentials which lead to in-medium states that appear to possess a significantly larger energy than their vacuum counterparts.…”

Section: Jhep12(2015)101mentioning

confidence: 99%

Quarkonium at finite temperature: towards realistic phenomenology from first principles

Burnier

Kaczmarek

Rothkopf

2015

J. High Energ. Phys.

136

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We present the finite temperature spectra of both bottomonium and charmonium, obtained from a consistent lattice QCD based potential picture. Starting point is the complex in-medium potential extracted on full QCD lattices with dynamical u,d and s quarks, generated by the HotQCD collaboration. Using the generalized Gauss law approach, vetted in a previous study on quenched QCD, we fit Re[V ] with a single temperature dependent parameter m D , the Debye screening mass, and confirm the up to now tentative values of Im [V ]. The obtained analytic expression for the complex potential allows us to compute quarkonium spectral functions by solving an appropriate Schrödinger equation. These spectra exhibit thermal widths, which are free from the resolution artifacts that plague direct reconstructions from Euclidean correlators using Bayesian methods. In the present adiabatic setting, we find clear evidence for sequential melting and derive melting temperatures for the different bound states. Quarkonium is gradually weakened by both screening (Re [V ]) and scattering (Im[V ]) effects that in combination lead to a shift of their in-medium spectral features to smaller frequencies, contrary to the mass gain of elementary particles at finite temperature.

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Section: Jhep12(2015)101mentioning

confidence: 99%

Quarkonium at finite temperature: towards realistic phenomenology from first principles

Burnier

Kaczmarek

Rothkopf

2015

J. High Energ. Phys.

136

View full text Add to dashboard Cite

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“…A next-to-leading order (NLO) computation in perturbation theory indicates the presence of a large correction towards strong interactions [12], and strong interactions have also been observed in N = 4 Super-Yang-Mills theory [13][14][15][16]. Furthermore classical lattice gauge theory simulations [17] and analyses in the confined phase [18][19][20][21][22] are consistent with strong interactions, and various other approaches are being pursued in the same vein [23][24][25][26][27][28][29] (for a review, see ref. [30]).…”

Section: Introductionmentioning

confidence: 99%

Nonperturbative estimate of the heavy quark momentum diffusion coefficient

et al. 2015

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We estimate the momentum diffusion coefficient of a heavy quark within a pure SU(3) plasma at a temperature of about 1.5T c . Large-scale Monte Carlo simulations on a series of lattices extending up to 192 3 × 48 permit us to carry out a continuum extrapolation of the so-called colour-electric imaginary-time correlator. The extrapolated correlator is analyzed with the help of theoretically motivated models for the corresponding spectral function. Evidence for a non-zero transport coefficient is found and, incorporating systematic uncertainties reflecting model assumptions, we obtain κ = (1.8 − 3.4) T 3 . This implies that the "drag coefficient", characterizing the time scale at which heavy quarks adjust to hydrodynamic flow, is η −1 D = (1.8 − 3.4)(T c /T ) 2 (M/1.5GeV) fm/c, where M is the heavy quark kinetic mass. The results apply to bottom and, with somewhat larger systematic uncertainties, to charm quarks.

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“…The second choice is inspired by Ref. [41] which showed that a non-decreasing drag coefficient near the phase transition is favored for a simultaneous description of heavy flavor R AA (p T ) and v 2 (p T ) (this is also supported by T -matrix calculations [42,43]). These models are fairly simple to implement and they give a good description of R AA .…”

Section: Details Of the Modelmentioning

confidence: 99%

Event-by-event correlations between soft hadrons and D0 mesons in 5.02 TeV PbPb collisions at the CERN Large Hadron Collider

et al. 2017

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In this paper heavy quark energy loss models are embedded in full event-by-event viscous hydrodynamic simulations to investigate the nuclear suppression factor and the azimuthal anisotropy of D 0 mesons in PbPb collisions at √ sNN = 5.02 TeV in the pT range 8-40 GeV. In our model calculations, the RAA of D 0 mesons is consistent with experimental data from the cms experiment. We present the first calculations of heavy flavor cumulants v2{2} and v3{2} (and also discuss v2{4}), which is also consistent with experimental data. Event-shape engineering techniques are used to compute the event-by-event correlation between the soft hadron vn and the heavy meson vn. We predict a linear correlation between these observables on an event-by-event basis.

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Quarkonia and heavy-quark relaxation times in the quark-gluon plasma

Cited by 118 publications

References 77 publications

Quarkonium at finite temperature: towards realistic phenomenology from first principles

Quarkonium at finite temperature: towards realistic phenomenology from first principles

Nonperturbative estimate of the heavy quark momentum diffusion coefficient

Event-by-event correlations between soft hadrons and D0 mesons in 5.02 TeV PbPb collisions at the CERN Large Hadron Collider

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