Medium effects in proton-induced K0 production at 3.5 GeV

0440765 - ÚJF 2015 RIV US eng J - Journal Article
Agakishiev, G. - Krása, Antonín - Křížek, Filip - Kugler, Andrej - Sobolev, Yuri, G. - Tlustý, Pavel - Wagner, Vladimír - Weber, M. - Yurevich, S. - Zanevsky, Yu. … Total 96 authors
Medium effects in proton-induced K0 production at 3.5 GeV.
Physical Review. C. Roč. 90, č. 5 (2014), 054906. ISSN 0556-2813
R&D Projects: GA MŠMT LC07050; GA MŠMT LG14004
Institutional support: RVO:61389005
Keywords : HADES collaboration * collisions * kaon
Subject RIV: BG - Nuclear, Atomic and Molecular Physics, Colliders
Impact factor: 3.733, year: 2014

We present the analysis of the inclusive K0 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 ≈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.
Permanent Link: http://hdl.handle.net/11104/0243895