SMuK 2023 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 74: Poster
HK 74.23: Poster
Donnerstag, 23. März 2023, 17:30–19:00, HSZ EG
Measurement of 3H and 3He production in pp collisions at √s = 13 TeV with ALICE at the LHC — •Matthias Herzer for the ALICE Germany collaboration — Institut für Kernphysik, Goethe-University, Frankfurt
The production of (anti)nuclei in pp collisions at the LHC has become a major topic in the high-energy physics community. In fact, there is a huge overlap between different research directions, from astrophysics, particle and nuclear physics. For instance, the observation of antinuclei in space is considered as possible signature for dark matter, since they would originate from collisions of potential dark matter candidates among each other.
We show the study of the production of 3H and 3He in pp collisions at 13 TeV in two data sets that were taken in LHC Run 2, i.e. in high-multiplicity events and one from a dedicated online trigger on nuclei. Furthermore, we will show the measurement of the ratio of these nuclei. This is an important test of isospin symmetry, which is expected to hold at LHC energies, but can not be tested directly since neutrons are not accessible experimentally.