Mid-rapidity ϕ meson production at √s_NN = 200 GeV Au+Au and pp collisions from STAR

2003/06/10 by Jingguo Ma, Ma, Jingguo
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #nucl-ex

paper · pdf · doi:10.48550/arxiv.nucl-ex/0306013

Proceedings for the 19th Winter Workshop on Nuclear Dynamics

arxiv created 2003/06/10 · arxiv updated 2009/12/01

Abstract

We present the results for the measurement of ϕ meson production in √s_NN = 200 GeV Au+Au and pp collisions at the Relativistic Heavy Ion Collider (RHIC). Using the event mixing technique, spectra and yields are obtained from the ϕ→ K⁺K^- decay channel for five centrality bins in Au+Au collisions and in pp collisions. We observe that the spectrum shape in Au+Au collisions depends weakly on the centrality and the shape of the spectrum in pp collisions is significantly different from that in Au+Au collisions.

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