München 2019 – wissenschaftliches Programm
HK 54.23: Poster
Donnerstag, 21. März 2019, 16:30–19:00, Foyer Theresanium
Search for the hypertriton via its three-body-decay — •Holger Huck for the HADES collaboration — Institut für Kernphysik, Goethe-Uni, Frankfurt, Deutschland
We use Au+Au heavy ion collisions at 1.23A GeV to search for Λ3H-hypernuclei via it’s three-body-decay in d, p and π−. After particle identification, we apply topological restrictions based on the weak decay to find a signal in the invariant mass spectrum. The uncorrelated combinatorical background is estimated with the mixed-event-method. Because of the similar Λ-decay in p and π−, there is a source of correlated background which has to be taken into account. With the help of simulation we introduce an invariant mass cut on combined p and π− to seperate the correlated background from free Λ-hyperon from the Λ3H-sample.