“School of Particles And Accelerator”

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Paper   IPM / Particles And Accelerator / 12630
School of Particles and Accelerator
  Title:   A non-conformal holographic model for D-meson suppression at LHC energy
1.  Santosh Kumar Das
2.  Ali Davody
  Status:   Submitted
  Journal: High Energy Physics
  Year:  2012
  Pages:   1-11
  Supported by:  IPM
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

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