Dissipative Hydrodynamic Effects on Baryon Stopping

Details Dissipative Hydrodynamic Effects on Baryon Stopping Dissipative Hydrodynamic Effects on Baryon Stopping

2012-04-20

arxiv.org/abs/1204.4713v1

Physics

Nuclear Physics

Nuclear Theory

10 pages, 6 figures; submitted

Scientific paper

The quark-gluon plasma is considered to behave as a relativistic viscous fluid in the high-energy heavy ion collisions. In this study, I develop and estimate a second order dissipative hydrodynamic model at finite baryon density with effects of baryon dissipation together with those of shear and bulk viscosities. It is found that the hydrodynamic evolution effectively reduces baryon stopping, suggesting that the collisions are less transparent at the initial stage. Also the net baryon distribution is found sensitive to the baryon dissipation, and could be used as a constraint for baryon diffusion coefficient. The results indicate that the dissipative hydrodynamic modeling would be important for extracting unique properties of the hot medium even in the high-energy collisions.

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