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HK: Fachverband Physik der Hadronen und Kerne

HK 65: Heavy Ion Collision and QCD Phases XII

HK 65.1: Gruppenbericht

Freitag, 18. März 2016, 14:00–14:30, S1/01 A01

Jets with ALICE: from vacuum to QCD at high temperatures — •Cunqueiro Leticia for the ALICE collaboration — University of Muenster, Germany

The hot and dense medium created in heavy-ion collisions is expected to modify the yield and radiation pattern of jets relative to proton proton collisions. The study of medium-induced modifications in jets aims at the understanding of the detailed mechanisms of in medium energy loss of partons and of fundamental properties of QCD at high temperatures.

ALICE measures jets in pp, p--Pb and Pb--Pb collisions, where pp and p--Pb are conceived primarily as a reference for vacuum and cold nuclear effects respectively.

The jet program comprises measurements like yields for different resolution R, intra-jet and inter-jet modifications via jet shapes and hadron-jet correlations, path length dependence of energy loss via jet flow v_{2}, hadrochemistry via jet constituent identification, flavour/mass hierarchy of energy loss via heavy flavour tagging etc.

Several of the latest ALICE jet physics results will be presented and discussed with emphasis on new studies on jet substructure and jet shapes.