Profiling hot and dense nuclear medium with high transverse momentum hadrons produced in d+Au and Au+Au collisions by the PHENIX experiment at RHIC

Abstract

PHENIX measurements of high transverse momentum ($p_T$) identified hadrons in $d$+Au and Au+Au collisions are presented. The nuclear modification factors ($R_{d\mathrm{A}}$ and $R_{\mathrm{AA}}$) for ${\pi }^0$ and $\eta$ are found to be very consistent in both collision systems, respectively. Using large amount of $p+p$ and Au+Au datasets, the fractional momentum loss ($S_{\mathrm{loss}}$) and the path-length dependent yield of ${\pi }^0$ in Au+Au collisions are obtained. The hadron spectra in the most central $d$+Au and the most peripheral Au+Au collisions are studied. The spectra shapes are found to be similar in both systems, but the yield is suppressed in the most peripheral Au+Au collisions.

4 pages, 5 figures, talk presented at the International Nuclear Physics Conference 2013, held in Florence, Italy, on June 2 - 7, 2013

References in corpus (4)

• Neutral pion production with respect to centrality and reaction plane in Au+Au collisions at sqrt(s_NN)=200 GeV
• Spectra and ratios of identified particles in Au+Au and d+Au collisions at sqrt(s_NN)=200 GeV
• Cold-nuclear-matter effcts on heavy-quark production in d+Au collisions at sqrt(s_NN)=200 GeV
• Evolution of pi^0 suppression in Au+Au collisions from sqrt(s_NN) = 39 to 200 GeV