Charge diffusion constant in hot and dense hadronic matter - A Hadro-molecular-dynamic calculation

Details Charge diffusion constant in hot and dense hadronic matter - A Hadro-molecular-dynamic calculation Charge diffusion constant in hot and dense hadronic matter - A Hadro-molecular-dynamic calculation

2000-07-12

arxiv.org/abs/hep-ph/0007121v4

Europhys.Lett.54:38-44,2001

Physics

High Energy Physics

High Energy Physics - Phenomenology

13 pages, 4 figures

Scientific paper

10.1209/epl/i2001-00225-3

We evaluate charge diffusion constant of dense and hot hadronic matter based on the molecular dynamical method by using a hadronic collision generator which describes nuclear collisions at energies 10 < E < 100 GeV/A and satisfies detailed balance at low temperatures (T < 200 MeV). For the hot and dense hadronic matter of the temperature range, 100 < T < 200 MeV and baryon number density, 0.16 < nB < 0.32 fm^-3, charge diffusion constant D gradually increases from 0.5 fm c to 2 fm c with temperature and is almost independent of baryon number density. Based on the obtained diffusion constant we make simple discussions on the diffusion of charge fluctuation in ultrarelativistic nuclear collisions.

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