Dresden 2013 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 29: Schwerionenkollisionen und QCD Phasen
HK 29.3: Vortrag
Dienstag, 5. März 2013, 14:45–15:00, HSZ-201
Perspectives of ψ′ and χc measurements in ALICE — •Steffen Weber — TU Darmstadt, Institut für Kernphysik, Darmstadt, Germany
ALICE is a dedicated heavy-ion experiment at the LHC at CERN. The LHC can deliver proton and heavy-ion beams with center-of-mass-energies up to √s =14 TeV for protons and √sNN = 5.5 TeV for heavy ions.
At such high energies, cc-pairs are abundantly produced. They can either form open charm hadrons or quarkonia. The latter are important probes of the hot medium created in heavy-ion collisions. Different models predict either suppression [1] or enhancement [2] of charmonia production in a quark-gluon-phase. Measurements of ψ′ and χc states would allow to distinguish different production mechanisms.
We present perspectives for ψ′ and χc measurements in ALICE. We will especially highlight these measurements in connection with the ALICE upgrade plans [3].
[1] T. Matsui and H. Satz, Phys. Lett. B 178, (1986)
[2] P. Braun-Munzinger and J. Stachel, arXiv:0901.2500 [nucl-th], (2009)
[3] L. Musa et al., CERN-LHCC-2012-012, (2012)