Rapidity and centrality dependence of identified hadrons in Au+Au and p+p collisions at 200 GeV

Not scheduled
Théâtre National (Centre Bonlieu)

Théâtre National

Centre Bonlieu

France
Board: 45
Poster Global and collective dynamics

Speaker

Dr Catalin for BRAHMS Collaboration Ristea (University of Bucharest)

Description

The BRAHMS collaboration has measured identified particles from AuAu and pp collisions at 200GeV over 3 units of rapidity. We will investigate the scaling of pion and kaon production with Ncoll and Npart at both central and forward rapidities. The kaon to pion ratio serves as a measure of equilibration of strange quarks. BRAHMS has found that for central collisions the K-/K+ ratio is strongly correlated to the pbar/p ratio. We will show how this correlation evolves with the centrality of the system. We will also show the centrality dependence of R_AA(Pt) at both central and forward rapidity for both mesons and baryons. For central collisions BRAHMS has already shown that R_AA does not depend strongly on rapidity but these data represent the first time that the centrality dependence of R_AA has been measured at forward rapidity. These data thus provide a summary of hadron production over a very wide rapidity and centrality range.

Primary authors

Dr Catalin for BRAHMS Collaboration Ristea (University of Bucharest) Dr Oana Ristea (University of Bucharest)

Presentation materials