Rapidity dependence of theK/π ratios in Au+Au collisions at \sqrt{s_{\rm NN}} = 62.4 GeV

I C Arsene
2008 Journal of Physics G: Nuclear and Particle Physics  
We report on measurements of identified particle yields from Au-Au collisions at $\sqrt{s_{NN}} = 62.4$ GeV made with the BRAHMS spectrometer. Here we will concentrate on the charged $K/\pi$ ratios as function of rapidity and baryo-chemical potential. We find that the $K/\pi$ ratios measured at different rapidities in the analysed dataset have a common dependence with the same ratios measured in mid-rapidity at SPS energies when plotted as function of the $\bar{p}/p$ ratio. The theoretical
more » ... he theoretical models used for comparison, UrQMD and AMPT, give a reasonable description of the particle yields at mid-rapidity but fail to do so for the $K/\pi$ ratios at forward rapidity.
doi:10.1088/0954-3899/35/10/104056 fatcat:sf3fhedw2bd5ji4pajbmzuz5ui