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Tübingen 2003 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 8: Plenarsitzung

HK 8.2: Plenary Talk

Tuesday, March 18, 2003, 09:00–09:30, P

Recent Results from STAR — •Kai Schweda — Lawrence Berkeley National Laboratory, 1 Cyclotron Rd, MS 70-R0319, Berkeley, CA 94720, USA

At the Relativistic Heavy Ion Collider (RHIC) matter under extreme conditions is studied in nucleus-nucleus collisions at maximum available energies of sqrt(sNN) = 200GeV. A transition of hadronic matter to a phase with partonic degrees of freedom - quarks and gluons - may manifest itself in its bulk properties. The STAR experiment is well suited to measure unidentified hadrons up to 12GeV/c and identified particles up to several GeV/c. We present recent results on transverse momentum distributions and angular correlations relative to a high-momentum trigger particle as a function of collision centrality. The physics of transverse collective expansion and potential energy loss of particles with high transverse momentum will be discussed within the framework of various models. Finally, STAR recent results from the collisions with polarized protons at sqrt(sNN) = 200GeV will be presented.

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