Münster 2011 – scientific programme
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HK: Fachverband Physik der Hadronen und Kerne
HK 8: Schwerionenkollisionen und QCD Phasen II
HK 8.6: Talk
Monday, March 21, 2011, 18:15–18:30, HS AP
Search for hyper-triton in Ni+Ni at 1.91A GeV — •Yapeng Zhang and Norbert Herrmann — Physikalisches Institut, Uni Heidelberg
Investigating the production of hypernuclei in Heavy-ion collision is a unique way to study the interaction between strange baryons and normal nuclear matter. In this presentation, we present preliminary results of reconstructing hypertritons in Ni+Ni reactions at an incident energy of 1.91A GeV in the experiment performed with FOPI detector at SIS18 in GSI. By evaluating the invariant mass of π−−3He pairs, we find a pronounced excess near the nominal mass of the hyper-triton under certain selection criteria. The reconstruction efficiency and the background are analysed by means of the MC simulations of the detector response.
* This work was supported by BMBF 06HD9121I.