Mainz 2012 – wissenschaftliches Programm
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HK: Fachverband Physik der Hadronen und Kerne
HK 67: Schwerionenkollisionen und QCD Phasen
HK 67.5: Vortrag
Freitag, 23. März 2012, 15:00–15:15, P 5
Hyper-trition production in Ni+Ni at 1.91A GeV — •Ya Peng Zhang and Norbert Herrmann — Physikalisches Institut, Universität Heidelberg, Germany
Production of hypernuclei in heavy-ion collisions (HIC) is a unique way to study the interaction between strange baryons and the surrounding nuclear matter. In this constribution, we present the preliminary results of reconstructing hypertritons in Ni+Ni reactions at the incident energy of 1.91A GeV in the experiment performed with FOPI detector at SIS18 in GSI. A pronounced excess at the nominal mass of the hyper-triton was found in the invarimant mass spectra of π−−3He under certain selection criteria. The reconstruction efficiency and the background are analysed by means of extensive MC simulations of the detector response.
* This work was supported by BMBF 06HD9121I.