Medium effects in proton-induced $K^{0}$ production at 3.5 GeV

G Agakishiev,A Lebedev, L Naumann, O Fateev,Yvonne Chiara Pachmayer,J A Garzon,Yu G Sobolev, A Reshetin, H Kuc,B Spruck,G Korcyl,H Tsertos,M Palka,A Sadovsky,L Fabbietti,A Blanco,I Frohlich,J Wustenfeld,V Pechenov,Y Zanevsky, Oliver Werner Arnold,J Stroth,O Pechenova, M Traxler,Y Parpottas, R Munzer,A Rustamov,K Gobel, J C Bergerchen, B Ramstein,P Cabanelas, V Metag,A Tarantola,J L Boyard,V Wagner,C Muntz, A Ierusalimov,J Pietraszko, W Przygoda, J Markert,T Galatyuk,R Gernhauser, M Gumberidze,W Kuhn,C Sturm,P Salabura,G Kornakov,Lars S Maier,B Kampfer,A Schmah,J Michel,A B Kurepin,K Lapidus, J Siebenson,E Schwab,R Holzmann, J Friese, A Dybczak, B W Kolb, C Wendisch, I Iori,P Tlusty,P Fonte,Michele Weber,M Bohmer, K Teilab,T Hennino,J L Weil,Lourenco Lopes,A Ivashkin,D Belver,Wolfgang Koenig,Tony F Heinz,S P Chernenko,T Kunz, F Krizek,R Krucken,P Finocchiaro,V P Ladygin,T Gaitanos, E Epple, S Yurevich,F Guber,A Mangiarotti,R Kotte,M Jurkovic, A Krasa,H Strobele,M Lorenz,D Gonzalezdiaz,I Koenig,A D Belyaev,T A Vasiliev,A Kugler, R Lalik, T Karavicheva, M Golubeva

PHYSICAL REVIEW C（2014）

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摘要

We present the analysis of the inclusive K-0 production in p + p and p + Nb collisions measured with the HADES detector (GSI Helmholtzzentrum for Heavy-Ion Research, Darmstadt) at a beam kinetic energy of 3.5 GeV. Data are compared to the Giessen Boltzmann-Uehling-Uhlenbeck (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 approximate to 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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关键词

niobium,cross section,phase space,sensitivity

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