Determining the BDMPS transport coefficient via medium-modified fragmentation functions

Abstract

In nucleus-nucleus collisions at RHIC and LHC, partons produced at high transverse momentum can undergo multiple scattering within the collision region prior to fragmenting into hadrons. We have studied the resulting medium-modified fragmentation function based on a calculation of the BDMPS-Z medium-induced gluon radiation for a dense, expanding medium of small finite extension. Here we explain how the BDMPS transport coefficient which measures the energy density attained in the collision, can be extracted from the observed modification of high-pt hadroproduction. We also comment on the significant remaining uncertainties in extracting the transport coefficient from data.

4 pages, 4 postscript figures. Proceedings for Quark Matter 2002

References in corpus (4)

• High $p_T$ Azimuthal Asymmetry in Non-central A+A at RHIC
• Quenching of hadron spectra in media
• A Dynamical Scaling Law for Jet Tomography
• Neutral Pion Distributions in PHENIX at RHIC

Cited by in corpus (5)

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• Evolution of mechanism of parton energy loss with transverse momentum at RHIC and LHC in relativistic collision of heavy nuclei
• System size dependence of nuclear modification and azimuthal anisotropy of jet quenching
• Jet reconstruction and jet background classification with the ALICE experiment in PbPb collisions at the LHC
• Jet and High $\pT$ Measurement with the ALICE Experiment