Nuclear modification factors of strange mesons measured by PHENIX

Abstract

The question of the existence and properties of the quark-gluon plasma (QGP) nowadays are the subject of detailed systematic study. Particles that contain strange quarks can be considered as a great tool to study flavor dependence of the parton energy loss in the QGP and strangeness enhancement. In this paper, we present the most recent PHENIX results on nuclear modification factors of $K^{\pm }$, $K^{\ast 0}$, $\varphi$ mesons as a function of $p_T$ and the number of participants in $p$+$p$, $p$+Al, ${}^3$He+Au, Cu+Cu, Cu+Au, Au+Au, and U+U collisions at top RHIC energies. The light hadron production at high-$p_T$ is apparently independent on quark content. The coalescence mechanism might be an answer for strangeness and baryon enhancement at moderate $p_T$.

arXiv comment5 pages, 3 figures

References in corpus (4)

• Formation of dense partonic matter in relativistic nucleus-nucleus collisions at RHIC: Experimental evaluation by the PHENIX collaboration
• Parton coalescence and antiproton/pion anomaly at RHIC
• Nuclear modification factors of phi mesons in d+Au, Cu+Cu and Au+Au collisions at sqrt(S_NN)=200 GeV
• Production of ${\pi }^0$ and $\eta$ mesons in U$+$U collisions at $\sqrt{s_{{}_{NN}}}=192$ GeV