Transport properties and Langevin dynamics of heavy quarks and quarkonia in the Quark Gluon Plasma

Beraudo, A.; Pace, A. De; Alberico, W.M.; Molinari, A.

doi:10.1016/j.nuclphysa.2009.09.002

Cited by 51 publications

(80 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Assuming that, within a quite short time interval τ 0 , a thermalized medium is formed, which will live for about 2-3 fm/c in the deconfined phase, one can follow the evolution of charm and beauty quarks in such a hydrodynamic background by solving the relativistic Langevin equation developed in refs. [37][38][39]. Finally, heavy quarks are hadronized according to a mechanism [40] which involves their recombination with light partons from the medium to form colour-singlet objects (strings), eventually fragmented to produce the final hadrons.…”

Section: Jhep03(2016)123mentioning

confidence: 99%

Heavy-flavour production in high-energy d-Au and p-Pb collisions

Beraudo

Pace

Monteno

et al. 2016

J. High Energ. Phys.

View full text Add to dashboard Cite

Soft-hadron measurements in high-energy collisions of small systems like p-Pb and d-Au show peculiar qualitative features (long-range rapidity correlations, flattening of the p T -spectra with increasing hadron mass and centrality, non-vanishing Fourier harmonics in the azimuthal particle distributions) suggestive of the formation of a strongly-interacting medium displaying a collective behaviour, with a hydrodynamic flow as a response to the pressure gradients in the initial conditions. Hard observables (high-p T jet and hadron spectra) on the other hand, within the current large systematic uncertainties, appear only midly modified with the respect to the benchmark case of minimum-bias p-p collisions. What should one expect for heavy-flavour particles, initially produced in hard processes but tending, in the nucleus-nucleus case, to approach kinetic equilibrium with the rest of the medium? This is the issue we address in the present study, showing how the current experimental findings are compatible with a picture in which the formation of a hot medium even in proton-nucleus collisions modifies the propagation and hadronization of heavyflavour particles.

show abstract

Section: Jhep03(2016)123mentioning

confidence: 99%

Heavy-flavour production in high-energy d-Au and p-Pb collisions

Beraudo

Pace

Monteno

et al. 2016

J. High Energ. Phys.

View full text Add to dashboard Cite

show abstract

“…(15). Alternative procedures have been adopted in the literature by, e.g., calculating D and adjusting A [8,25]. Condition (15) has also been derived as the generalization of the fluctuation-dissipation theorem with BoltzmannJüttner distributions as the equilibrium solution in [24].…”

Section: B Evaluation Of Equilibrium Conditionmentioning

confidence: 99%

Relativistic Langevin dynamics in expanding media

Hees

Gossiaux

et al. 2013

Phys. Rev. E

View full text Add to dashboard Cite

We study the consequences of different realizations of diffusion processes in relativistic Langevin simulations. We elaborate on the Ito-Stratonovich dilemma by showing how microscopically calculated transport coefficients as obtained from a Boltzmann/Fokker-Planck equation can be implemented to lead to an unambiguous realization of the Langevin process. Pertinent examples within the pre-point (Ito) and post-point (Hänggi-Klimontovich) Langevin prescriptions are worked out explicitly. Deviations from this implementation are shown to generate variants of the Boltzmann distribution as the stationary (equilibrium) solutions. Finally, we explicitly verify how the Lorentz invariance of the Langevin process is maintained in the presence of an expanding medium, including the case of an "elliptic flow" transmitted to a Brownian test particle. This is particularly relevant for using heavy-flavor diffusion as a quantitative tool to diagnose transport properties of QCD matter as created in ultrarelativistic heavy-ion collisions.

show abstract

“…The corresponding contribution to κ L/T has been derived and evaluated in Refs. [1,2]. Eventually, one has to sum-up the soft and hard contributions to the transport coefficients :…”

Section: Heavy Quarks In the Mediummentioning

confidence: 99%

Heavy flavors in nucleus-nucleus collisions at RHIC and LHC

Nardi

Alberico

Molinari

et al. 2014

EPJ Web of Conferences

Self Cite

View full text Add to dashboard Cite

Abstract. A multi-step setup for heavy-flavor studies in high-energy nucleus-nucleus (AA) collisions -addressing within a comprehensive framework the initial QQ production, the propagation in the hot medium until decoupling and the final hadronization and decays -is presented. The propagation of the heavy quarks in the medium is described in a framework provided by the relativistic Langevin equation and the corresponding numerical results are compared to experimental data from RHIC and the LHC. In particular, outcomes for the nuclear modification factor R AA and for the elliptic flow v 2 of D/B mesons, heavy-flavor electrons and non-prompt J/ψ's are displayed.

show abstract

Transport properties and Langevin dynamics of heavy quarks and quarkonia in the Quark Gluon Plasma

Cited by 51 publications

References 53 publications

Heavy-flavour production in high-energy d-Au and p-Pb collisions

Heavy-flavour production in high-energy d-Au and p-Pb collisions

Relativistic Langevin dynamics in expanding media

Heavy flavors in nucleus-nucleus collisions at RHIC and LHC

Contact Info

Product

Resources

About