Nuclear modification at sqrt{s_{NN}}=17.3 GeV, measured at NA49
Abstract
Transverse momentum spectra up to 4.5 GeV/c were measured around midrapidity in Pb+Pb reactions at sqrt{s_{NN}}=17.3 GeV, for pi^{+/-}, p, pbar and K^{+/-}, by the NA49 experiment. The nuclear modification factors R_{AA}, R_{AA/pA} and R_{CP} were extracted and are compared to RHIC results at sqrt{s_{NN}}=200 GeV. The modification factor R_{AA} shows a rapid increase with transverse momentum in the covered region. The modification factor R_{CP} shows saturation well below unity in the pi^{+/-} channel. The extracted R_{CP} values follow the 200 GeV RHIC results closely in the available transverse momentum range for all particle species. For pi^{+/-} above 2.5 GeV/c transverse momentum, the measured suppression is smaller than that observed at RHIC. The nuclear modification factor R_{AA/pA} for pi^{+/-} stays well below unity.
Keywords
Cite
@article{arxiv.0805.4771,
title = {Nuclear modification at sqrt{s_{NN}}=17.3 GeV, measured at NA49},
author = {Andras Laszlo},
journal= {arXiv preprint arXiv:0805.4771},
year = {2019}
}
Comments
Proceedings of Quark Matter 2008 conference