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München 2019 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 19: Heavy-Ion Collisions and QCD Phases III

HK 19.2: Talk

Tuesday, March 19, 2019, 14:30–14:45, HS 15

Production of (anti-)t and (anti-)4He in Pb–Pb collisions at sNN=5.02 TeV with ALICE at the LHC — •Esther Bartsch for the ALICE collaboration — Institut für Kernphysik, Goethe-Universität Frankfurt

The high collision energies reached at the LHC lead to significant production yields of light (anti-)nuclei in proton-proton and, in particular, Pb–Pb collisions. The excellent particle identification capabilities of the Time Projection Chamber, using the specific energy loss (dE/dx), and the time-of-flight measurement, allow for the detection of these rarely produced particles. Furthermore, the Inner Tracking System gives the possibility to separate primary nuclei from those coming from the decay of heavier systems.

New results on (anti-)triton and (anti-)4He production in Pb–Pb collisions at √sNN=5.02 TeV will be presented. The goal is to study production mechanisms such as coalescence and thermal models, and to compare the results to those in heavy-ion collisions at lower energies.

Supported by BMBF and the Helmholtz Association.

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