TY - JOUR A1 - Dietel, Thomas T1 - Hard physics in STAR T2 - Proceedings of Science N2 - The hot and dense matter created in high-energy nuclear collisions is believed to undergo a transition into a deconfined phase where partonic degrees of freedom determine the dynamics of the medium. High-p⊥ partons, that are produced in the initial collisions between nucleons of the incoming nuclei, lose energy as they propagate through the medium. This effect, called jetquenching, is observed in high-p⊥ particle spectra, in azimuthal correlations with the reaction plane (elliptic flow) and jet-like two-particle correlations. STAR consists of tracking detectors and electromagnetic calorimetry with large and azimuthally symmetric acceptance and is exceptionally well suited for single particle detection and correlation studies at high p⊥. In the last five years, it has collected a large dataset including Au+Au and Cu+Cu collisions at different energies and reference data from p+p and d+Au collisions. We present particle spectra and two-particle correlations at high-p⊥, and relate these measurements to the properties of the medium. Y1 - 2005 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/2349 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30-45305 SN - 1824-8039 N1 - Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. VL - 021 IS - (HEP2005)136 SP - 1 EP - 4 PB - SISSA CY - Trieste ER -