Heidelberg 2015 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 20: Invited Talks 2
HK 20.1: Hauptvortrag
Dienstag, 24. März 2015, 11:00–11:40, T/HS1
Cold nuclear matter effects studied in p-Pb collisions at the LHC — •Alberica Toia — Goethe University Frankfurt — GSI Darmstadt
The properties of strongly interacting matter at extreme conditions of temperature and energy densities are studied with heavy ion collisions at LHC. While the comparison of measurements performed in Pb-Pb collisions with the same measurements in proton-proton collisions had been quite successful, proton-nucleus collisions provide a reference to disentangle signatures of the formation of a deconfined hot medium, from those already present in cold nuclear matter, due to the complex structure of the colliding nuclei.
While most of the benchmarks from the control experiment indicate that initial state effects do not play a role in the observed suppression of hadron production observed in heavy ion collisions, several measurements of particle production in the low and intermediate momentum region indicate the presence of coherent and collective effects.
This presentation reviews in details the experimental results in ultra-relativistic p-Pb collisions at √sNN = 5.02 TeV obtained recently at the CERN LHC, with special emphasis on the discovered collective phenomena compared with the measurements in p-p and Pb-Pb collisions at similar energies.