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HK: Fachverband Physik der Hadronen und Kerne

HK 17: Heavy-Ion Collisions and QCD Phases III

HK 17.2: Talk

Wednesday, September 1, 2021, 17:00–17:15, H1

Measurement of light (anti-)nuclei production in pp collisions at √s = 13 TeV with ALICE — •Michael Habib^1,2 and Luca Barioglio³ for the ALICE collaboration — ¹GSI Helmholtzzentrum für Schwerionenforschung, Planckstr. 1, 64291 Darmstadt — ²Institut für Kernphysik, Technische Universität Darmstadt, Schlossgartenstr. 9, 64289 Darmstadt — ³Physik Department, Technische Universität München, James-Franck-Straße 1, 85748 Garching bei München

Understanding the production mechanism of light (anti-)nuclei is one of the key challenges of contemporary nuclear physics. It has important consequences for astrophysics since it provides input for indirect dark matter searches with space-bound experiments. In this talk, the latest results on light (anti-)nuclei production obtained with ALICE in pp collisions at √s = 13 will be presented and compared to coalescence and thermal model predictions. In particular, the measured coalescence parameters for deuterons and helium nuclei will be compared with parameter-free theoretical predictions. The latter are constrained by femtoscopic source radius measurements and they depend directly on the nuclear wave functions.