Charged hadron results from Au+Au at 19.6 GeV

Understand

Results from a one day $\sqrt{s_{NN}} = 19.6$ 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 $\pi^{\pm}$, $K^{\pm}$, $p$, and $\bar{p}$ at midrapidity and $m_T - m_0$ $< 1.0$ GeV/$c^2$.
• We have also measured the two-pion interferometry source radii.