Aug 12 – 18, 2012
US/Eastern timezone

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R_CP and R_AA Measurements of Identified and Unidentified Charged Particles at High p_T in Au+Au Collisions at 7.7, 11.5, 19.6, 27, 39, and 62.4 GeV in STAR

Aug 16, 2012, 3:00 PM



Evan Sangaline (UC Davis)


The suppression of high $p_{T}$ hadrons in 200 GeV Au+Au collisions at RHIC has been seen as a signature for a partonic medium being formed. The evolution of this key QGP signature is a powerful tool for studying the QCD phase structure in the RHIC Beam Energy Scan (BES). In this talk, we will present measurements of identified $\pi^{\pm}$, $K^{\pm}$, and $p(\bar{p})$ and unidentified charged particles in Au+Au collisions at $\sqrt{s_{NN}}=$7.7, 11.5, 19.6, 27, 39, and 62.4 GeV. We will report nuclear modification factors $R_{CP}$ and $R_{AA}$ where published p+p references are available. These results offer insight into the $\sqrt{s_{NN}}$ dependence of high $p_{T}$ suppression in nuclear collisions.

Primary author

Evan Sangaline (UC Davis)


Presentation materials

Peer reviewing