Effect of charged particle's multiplicity fluctuations on flow harmonics in even-by-event hydrodynamics

2012/10/31 by A. K. Chaudhuri · 2 citations
Physics and Astronomy · #nucl-th #hep-ph

paper · pdf · doi:10.1103/physrevc.87.034908

8 pages, 8 figures. Final version to be published in Physical Review C. arXiv admin note: text overlap with arXiv:1204.2986

arxiv created 2013/03/19 · arxiv updated 2013/04/03

Abstract

In nucleon-nucleon collisions, charged particle's multiplicity fluctuates. We have studied the effect of multiplicity fluctuation on flow harmonics in nucleus-nucleus collision in event-by-event hydrodynamics. Assuming that the charged particle's multiplicity fluctuations are governed by the negative binomial distribution, the Monte-Carlo Glauber model of initial condition is generalised to include the fluctuations. Explicit simulations with the generalised Monte-Carlo Glauber model initial conditions indicate that the multiplicity fluctuations do not have large effect on the flow harmonics.

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