Frankfurt 2014 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 4: Schwerionenkollisionen und QCD Phasen
HK 4.6: Vortrag
Montag, 17. März 2014, 15:30–15:45, HZ 6
Fragmentation of jets into hadrons with strangeness in Pb-Pb collisions in ALICE at the LHC — •Alice Zimmermann for the ALICE collaboration — Physikalisches Institut Heidelberg
The research programme of the ALICE experiment at the LHC focuses on the so-called Quark-Gluon Plasma, a state of matter where quarks and gluons are deconfined.
The measurement of particle jets from fragmentation of hard scatterings of partons in the colliding nuclei allows to study parton energy loss in the hot and dense medium and constrains the modelling of such a phenomenon.
By measuring yields of particles like Ks0, Λ and Λ of low to intermediate momenta within jet cones, fragmentation into strange hadrons, as well as the baryon-meson ratio in jets can be studied.
In this contribution we present first results on Ks0, Λ and Λ production in jets in Pb-Pb collisions at √sNN = 2.76 TeV. The analysis is further performed in different centrality classes, representing collisions with different impact parameters. The strangeness identified fragmentation distributions are compared to first results on inclusive fragmentation in Pb-Pb collisions.