STAR Overview of Hard Probe Observables

25 Sep 2015  ·  Yi Li for the STAR Collaboration ·

Parton energy loss, quarkonium sequential melting and particle production from electromagnetic interactions are tools to study Quark Gluon Plasma properties. The STAR detector, with large acceptance at mid-rapidity, excellent particle identification and wide transverse momentum coverage, is able to study these probes in details... In Hard Probes 2015, the STAR collaboration reported measurements of reconstructed jets, heavy-flavor physics, di-lepton production and the performance of new detectors in seven presentations and one poster. Given the rich results from STAR, this overview report will focus on a few selected results on jets and $\Upsilon$ measurements in Au+Au collisions at $\sqrt{s_{\rm NN}}=200\,$GeV, $J/\psi$ production in $p$+$p$ collisions at $\sqrt{s_{\rm NN}}=500\,$GeV, and the di-electron spectrum in the low mass region from the Beam Energy Scan - Phase I. read more

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