Münster 2017 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 47: Heavy Ion Collisions and QCD Phases X

HK 47.6: Vortrag

Donnerstag, 30. März 2017, 18:15–18:30, F 1

Measurement of (anti-)hypertriton in Pb–Pb collisions with ALICE at the LHC — •Lukas Kreis for the ALICE collaboration — GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt — Institut für Kernphysik Technische Universität Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt

The ALICE experiment at the CERN LHC is dedicated to the study of nucleus–nucleus collisions at the highest energies ever reached in the laboratory. The excellent particle identification and decay vertex reconstruction capabilities allow the study of light (anti-)hypernuclei production in heavy-ion collisions. Hypernuclei are weakly-bound unstable nuclei, which contain at least one hyperon. This makes them interesting for gaining insight into the nucleon-hyperon interaction. The lifetime of hypertriton Λ3H has gathered particular interest. Recent heavy-ion experiments indicate a deviation from the lifetime of the free Λ baryon, but higher precision measurements are required. In this talk the methodology of the measurement of hypertriton and antihypertriton with ALICE is explained. First results obtained in Pb–Pb collisions are presented.

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