Frankfurt 2014 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 41: Schwerionenkollisionen und QCD Phasen

HK 41.3: Vortrag

Donnerstag, 20. März 2014, 14:45–15:00, HZ 6

Hints for collective effects in identified particle spectra from p–Pb collisions at 5.02 TeV — •Michael Schork — Physikalisches Institut, University of Heidelberg, Im Neuenheimer Feld 226

First hints for collective dynamics in high-multiplicity p-Pb collisions at LHC were observed in two-particle correlations of unidentified particles [1,2]. We present results of a systematic fit using a simple blast wave parameterization [3] to identified particle spectra from p-Pb and Pb-Pb collisions as measured by ALICE at LHC. While in Pb-Pb collisions, a large number of particles can be commonly described by a single set of parameters including mass A=2 and A=3 nuclei, also spectra from high-multiplicity p-Pb collisions allow for a description within this rather simple model. Finally, we give predictions for spectra and the nuclear modification factor of mesons carrying a charm or bottom quark.

[1] S. Chatrchyan, CMS Collaboration et al., Phys. Lett. B, 718 (2013), 795.

[2] B. Abelev, ALICE Collaboration et al., Phys. Lett. B, 719 (2013), 29.

[3] E. Schnedermann, J. Sollfrank and U. Heinz, Phys. Rev. C48 (1993) 2462.