A Random Walk with Heavy Flavours

Mazumder, Surasree; Bhattacharyya, Trambak; Das, Santosh K.

doi:10.1155/2013/136587

Cited by 1 publication

(1 citation statement)

References 129 publications

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“…This is because heavy quarks do not constitute the bulk part of the system, and their thermalization time scale is larger than that of the light quarks and gluons; hence heavy quarks can retain the interaction history very effectively. Therefore, the propagation of heavy quarks through QGP can be treated as nonequilibrium heavy quarks executing Brownian motion [2,3] in a thermal bath of QGP, and the Langevin equation can be used to study such a system.…”

Section: Introductionmentioning

confidence: 99%

Nonconformal holographic model forD-meson suppression at energies available at the CERN Large Hadron Collider

Das

Davody

2014

Phys. Rev. C

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The drag force of charm quarks propagating through a thermalized system of Quark Gluon Plasma (QGP) has been considered within the framework of both conformal and nonconformal anti-de Sitter (AdS) correspondence. A newly derived Einstein fluctuation-dissipation relation has been used to calculate the heavy flavor diffusion coefficients. Using the drag and diffusion coefficients as inputs, the Langevin equation has been solved to study the heavy flavor suppression factor. It has been shown that within conformal AdS correspondence the D-meson suppression at Large Hadron Collider energy can be reproduced, whereas the nonconformal AdS correspondence fails to reproduce the experimental results. This suggests collisional loss alone within nonconformal AdS correspondence cannot reproduce the experimental results, and inclusion of radiative loss becomes important.

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Section: Introductionmentioning

confidence: 99%