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Mainz 2012 – scientific programme

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HK: Fachverband Physik der Hadronen und Kerne

HK 67: Schwerionenkollisionen und QCD Phasen

HK 67.5: Talk

Friday, March 23, 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 π3He 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.

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