12-18 August 2012
US/Eastern timezone

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Hydrodynamics at large baryon densities: Understanding proton vs. anti-proton v_2 from baryon number conservation

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

Regency 1/3 and Ambassador

Poster Global and collective dynamics Poster Session Reception

Speaker

Dr Jan Steinheimer-Froschauer (Lawrence Berkeley National Laboratory)

Description

Using hydrodynamics we explore the effects of the initial state, baryon stopping and baryon number transport on various observables such as spectra, elliptic flow and particle yields for heavy ion collisions at beam energies from sqrt{s_{NN}}=7.7 to 200 GeV. We find that observed phenomena such as the centrality dependent freeze out parameters as well as the apparent difference in particle and anti-particle v_2 can be explained by a collective hydrodynamic expansion, once baryon stopping and baryon number conservation are properly taken into account. We will further discuss how the various stages of the collision contribute to the p_{t} spectra, the mass dependence of T_{eff} and particle ratio fluctuations.

Primary author

Dr Jan Steinheimer-Froschauer (Lawrence Berkeley National Laboratory)

Co-authors

Marcus Bleicher (Uni Frankfurt) Volker Koch (LBNL)

Presentation Materials

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