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HK: Fachverband Physik der Hadronen und Kerne

HK 19: Hadron Structure and Spectroscopy IV

HK 19.6: Talk

Wednesday, September 1, 2021, 18:00–18:15, H3

Hypertriton production in 13 TeV pp collisions — •Michael Hartung — Institut für Kernphysik, Goethe Universität, Frankfurt, Germany

The _Λ³H is a bound state of proton, neutron and lambda. Studying its characteristics provides insights about the strong interaction between the lambda and ordinary nucleons. In particular, the _Λ³H is an extremely loosely bound object, with a large wave-function. As a consequence, the (anti-)_Λ³H production yields in pp collisions are extremely sensitive to the nucleosynthesis models. Significant hypertriton yields have so far only been measured in Pb−Pb collisions at the LHC. Due to the excellent particle identification through the energy-loss measurement in the Time Projection Chamber in combination with the capabilities to separate primary particles from those from secondary decays, provided by the Inner Tracking System, it is possible to identify the hypertriton in pp collisions. With the precision of the presented production yields some configurations of the Statistical Hadronisation and Coalescence models can be excluded leading to tighter constraints to available theoretical models. Supported by BMBF and the Helmholtz Association.