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

Abstract

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/non-conformal Anti de Sitter (AdS) correspondence. Newly derived Einstein Fluctuation-Dissipation relation has been used to calculate the heavy flavor diffusion coefficients. Using the drag and diffusion coefficients as inputs 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 LHC energy can be reproduced where as the non-conformal AdS correspondence fail to reproduce the experimental results. It suggests collisional loss alone within non-conformal AdS correspondence can not reproduce the experimental results and inclusion of radiative loss becomes important.

7 pages, 7 figures

References in corpus (21)

• Energy loss of a heavy quark moving through N=4 supersymmetric Yang-Mills plasma
• Drag force in AdS/CFT
• Energy Loss and Flow of Heavy Quarks in Au+Au Collisions at sqrt(s_NN) = 200 GeV
• Exploring improved holographic theories for QCD: Part II
• Heavy Quark Diffusion in Strongly Coupled $\mathbb{N}=4$ Yang Mills
• A calculation of the bulk viscosity in SU(3) gluodynamics
• Mimicking the QCD equation of state with a dual black hole
• Nonperturbative Heavy-Quark Diffusion in the Quark-Gluon Plasma
• Towards an understanding of the RHIC single electron data
• Momentum fluctuations of heavy quarks in the gauge-string duality
• Heavy-flavour spectra in high energy nucleus-nucleus collisions
• Heavy quark diffusion in perturbative QCD at next-to-leading order
• Collisional dissociation of heavy mesons in dense QCD matter
• Comparing the drag force on heavy quarks in N=4 super-Yang-Mills theory and QCD
• Heavy Quark Diffusion with Relativistic Langevin Dynamics in the Quark-Gluon Fluid
• Langevin diffusion of heavy quarks in non-conformal holographic backgrounds
• Heavy-quark transport coefficients in a hot viscous quark-gluon plasma medium
• Model and parameter dependence of heavy quark energy loss in a hot and dense medium
• Testing AdS/CFT Drag and pQCD Heavy Quark Energy Loss
• Drag and jet quenching of heavy quarks in a strongly coupled N=2* plasma
• A random walk with heavy flavours

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• Directed Flow of Charm Quarks as a Witness of the Initial Strong Magnetic Field in Ultra-Relativistic Heavy Ion Collisions
• Toward a solution to the $R_{AA}$ and $v_2$ puzzle for heavy quarks
• Diffusion of ${\Lambda }_c$ in hot hadronic medium and its impact on ${\Lambda }_c/D$ ratio
• Heavy quark diffusion in pre-equilibrium stage of heavy ion collisions
• Impact of momentum-space anisotropy on heavy quark dynamics in a QGP medium
• Toward a simultaneous description of $R_{AA}$ and $v_2$ for heavy quarks