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Münster 2011 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 40: Schwerionenkollisionen und QCD Phasen V

HK 40.3: Vortrag

Mittwoch, 23. März 2011, 17:00–17:15, HS AP

Measurement of nuclei and antinuclei with the ALICE experiment at the LHC — •Nicole Martin1,2 and Alexander Kalweit1,21GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt — 2Technische Universität Darmstadt, Hochschulstr. 12, 64289 Darmstadt

The of measurement of nuclei and antinuclei in pp collisions at √s = 7 TeV and PbPb collisions at √sNN = 2.76 TeV will be presented. These particles are identified using the energy loss (dE/dx) measurements from the Time Projection Chamber. The Inner Tracking System allows a precise determination of the event vertex, by which primary and secondary particles from the detector material can be well separated. The high statistics of pp and PbPb events give a significant number of light nuclei and antinuclei such as (anti)deuterons, (anti)tritons, (anti)3He and possibly (anti)hypertritons. The study of nuclei and antinuclei production will substantially extend the range of hadron masses used to test particle production at the QCD phase boundary, probed in PbPb collisions.

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