Charged hadron results from Au+Au at 19.6 GeV

2009/03/26 by D. Cebra, Cebra, D.
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #nucl-ex

paper · pdf · doi:10.48550/arxiv.0903.4702

4 pages, 4 figures, Quark Matter 2008

arxiv created 2009/03/26 · arxiv updated 2019/08/13

Abstract

Results from a one day √s_NN = 19.6 GeV Au+Au test run at RHIC using the STAR detector are presented. The quality of these results from only 175,000 triggered events demonstrates some of STAR's physics capabilities for the upcoming beam energy scan at RHIC. From these 19.6 GeV Au+Au collisions, we have analyzed the transverse mass spectra of π^±, K^±, p, and p at midrapidity and m_T - m₀ < 1.0 GeV/c². We have also measured the two-pion interferometry source radii. The collision energy (√s_NN = 19.6 GeV) of this low energy Au+Au RHIC collider run is very close to that of the 158 AGeV fixed-target Pb+Pb runs at the SPS (√s_NN = 17.3 GeV). We present comparisons between these STAR data and the results published by NA49, NA44, WA98, and CERES.

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