Medium effects in proton-inducedK0production at 3.5 GeV

G Agakishiev,J L Boyard,S Yurevich,J Pietraszko,L Lopes,V Metag,J Friese,L Maier,I Fröhlich,B Spruck,Y Parpottas,A Rustamov,A Ivashkin,A Mangiarotti,A Krása,P Salabura,H Kuc,T Kunz,T Hennino,B Ramstein,D González-Díaz,M Traxler,J Michel,A Sadovsky,P Cabanelas,P Fonte,E Schwab,I Iori,J Siebenson,L Naumann,Yu G Sobolev,G Kornakov,A Dybczak,R Holzmann,V Pechenov,T Galatyuk,R Lalik,H Tsertos,J C Berger-Chen,J A Garzón,J Markert,A Blanco,C Müntz,M Böhmer,C Wendisch,K Teilab,V Wagner,A Lebedev,J Wüstenfeld,B W Kolb,O Pechenova,R Krücken,D Belver,H Ströbele,C Sturm,W Kühn,M Gumberidze,A Schmah,T Vasiliev,K Göbel,F Křížek ,O Fateev,R Kötte ,P Finocchiaro,A Belyaev,F Guber,L Fabbietti,W Przygoda,Y Pachmayer ,E Epple,P Tlustý ,M Pałka ,V P Ladygin ,T Gaitanos,T Karavicheva,R Gernhäuser,A Kurepin,A Tarantola,J Stroth,K Lapidus,M Jurkovič ,Robert Helmut Münzer ,W Koenig,M Weber,I Köenig ,M Golubeva,O Arnold,A Ierusalimov,G Korcyl,M Lorenz,A Reshetin,Y Zanevsky,T Heinz,S Chernenko,А Куглер ,B Kämpfer,Janus Weil

doi:10.1103/physrevc.90.054906

Abstract

We present the analysis of the inclusive $K^{0}$ production in p+p and p+Nb collisions measured with the HADES detector at a beam kinetic energy of 3.5 GeV. Data are compared to the GiBUU transport model. The data suggest the presence of a repulsive momentum-dependent kaon potential as predicted by the Chiral Perturbation Theory (ChPT). For the kaon at rest and at normal nuclear density, the ChPT potential amounts to $\approx 35$ MeV. A detailed tuning of the kaon production cross sections implemented in the model has been carried out to reproduce the experimental data measured in p+p collisions. The uncertainties in the parameters of the model were examined with respect to the sensitivity of the experimental results from p+Nb collisions to the in-medium kaon potential.

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