Speaker
Prof.
Francesco Giacosa
(Kielce University)
Description
The NA61/SHINE collaboration recently reported an excess of charged versus neutral kaons that signals an unexpectedly large breaking of the isospin symmetry. Similar excesses were also present in previous experiments, but with larger errors. Models for hadron productions in heavy ion collisions systematically underestimate the measured charge-to-neutral kaon ratio. In this talk, we report on the present status of theoretical efforts for determining the charged-neutral kaon ratio. We also present a simple `counting' model highlighting possible consequences of the isospin breaking.
Authors
Prof.
Francesco Giacosa
(Kielce University)
Herbert Stroebele
(Goethe University Frankfurt (DE))
Marek Gazdzicki
(Jan Kochanowski University (PL))
Mark Gorenstein
Martin Rohrmoser
(IFJ-PAN Krakow)
Dr
Roman Poberezhnyuk
(University of Houston)
Dr
Subhasis Samanta
Wojciech Brylinski
(Warsaw University of Technology (PL))
