12-18 August 2012
US/Eastern timezone

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The effect of initial fluctuations on jet quenching

16 Aug 2012, 16:00
2h
Regency 1/3 and Ambassador ()

Regency 1/3 and Ambassador

Speaker

Dr Hanzhong Zhang (Institute of Particle Physics, Central China Normal University)

Description

The effect of initial fluctuations on partonic jet energy loss in a hydrodynamical background in high-energy heavy-ion collisions is studied within a next-to-leading order (NLO) perturbative QCD parton model. An energetic parton jet is found to lose more energy loss with fluctuating initial conditions than that with smooth initial conditions due to initial dominative positive correlation between the fluctuation of the production probability of the initial parton jet and the fluctuation of the local medium density in the jet trajectory. The deviation between the nuclear modification factors with fluctuating initial conditions and smooth initial conditions in non-central A+A collisions is found greater than in central A+A collisions. Particularly, the jet energy loss with linear path-length dependence is found to encounter more stronger fluctuation effect than with quadratic path-length dependence.

Primary author

Dr Hanzhong Zhang (Institute of Particle Physics, Central China Normal University)

Co-authors

Prof. Che-Ming Ko (Cyclotron Institute, Texas A&M University) Dr Taesoo Song (Cyclotron Institute, Texas A&M University)

Presentation Materials

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