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Münster 2002 – scientific programme

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HK: Physik der Hadronen und Kerne

HK 47: Heavy Ions VI

HK 47.4: Talk

Thursday, March 14, 2002, 17:15–17:30, E

Pion production in Au-Au collisions at 1.5 AGeV — •Tanja Schuck — GSI, Planckstr 1, 64291 Darmstadt

The production of pions is the dominant inelastic hadronic channel in nuclear processes and hence influences significantly the reaction dynamics of nucleus-nucleus collisions. However, a detailed and quantitative understanding of pion creation and reabsorption in those collisions - in particular in the resonance region - is still lacking.

Using the Kaon Spectrometer KaoS at SIS/GSI the phasespace distributions of charged pions were measured in Au-Au collisions at a beam energy of 1.5 AGeV. This is well above the threshold for the population of hadronic resonances which contribute by their decay to the pion yield.

The experimental data will be discussed and compared to results of calculations performed with the UrQMD transport code which aims to include these decays.

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