Gießen 2024 – wissenschaftliches Programm

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HK: Fachverband Physik der Hadronen und Kerne

HK 72: Poster

HK 72.50: Poster

Donnerstag, 14. März 2024, 17:15–18:45, HBR 14: Foyer

Inelastic cross section of antinuclei in Run 3 with ALICE — •Rafael Manhart for the ALICE Germany collaboration — Technische Universität München

Low-energy cosmic-ray antinuclei are a promising probe for indirect detection of dark matter. Theoretical predictions foresee dark matter flux to be orders of magnitude higher than the background due to interactions of cosmic rays with the interstellar medium, at low kinetic energies (E_kin ∼ 1 GeV). In order to interpret any future measurements correctly, it is important to study the inelastic cross section of antinuclei. Such inelastic cross section measurements have been carried out in the past using fixed target experiments. ALICE, thanks to its outstanding tracking and particle identification capabilities, has contributed to the measurements of the inelastic cross section of light antinuclei, namely of antideuterons, antitritons and anti³He. In this contribution, results of the measurements carried out during the LHC Run 2 of the inelastic cross section of antimatter will be shown, together with prospects on similar measurements carried out with the improved statistics of the LHC Run 3 campaign.

Fundedf by BMBF Verbundforschung (05P21WOCA1 ALICE).

Keywords: Antinuclei; Inelastic cross section; ALICE; Run 3