Particle Production in Au+Au Collisions at $\sqrt{s_{NN}}$ = 9.2 GeV

TL;DR

This paper reports the first test run results of Au+Au collisions at 9.2 GeV at RHIC, demonstrating detector readiness and consistency with previous experiments, paving the way for QCD phase diagram exploration.

Contribution

First test run results at 9.2 GeV demonstrating STAR detector's capability for critical point search in QCD phase diagram.

Findings

Results are consistent with CERN SPS measurements at similar energies.

STAR detector successfully collected and analyzed collision data.

Data supports further exploration of the QCD phase diagram.

Abstract

In this report we present the first test run results from Au+Au collisions at $\sqrt{s_{NN}}$ = 9.2 GeV at RHIC. The large acceptance STAR detector has collected ~3k minimum bias collisions during this test run. The azimuthal anisotropy, identified particle spectra, particle ratios and HBT radii are observed to be consistent with the previous measurements from CERN SPS at similar center of mass energies. These results from the lowest collision energy at RHIC demonstrate the STAR detector's readiness to collect high quality data for the proposed Critical Point Search Program which allows us to explore the QCD phase diagram.