Kaon to Pion Ratio in SU(3) PNJL Model

Abstract

The article is devoted to investigation of the sharp peak in the $${{K}^{ + }}/{{\pi }^{ + }}$$ ratio, known as a ”horn”. We used the SU(3) PNJL model to show how the splitting of kaon mass can appear in dense matter and how it can affect the kaon to pion ratio. In the model we calculated the $$K/\pi $$ ratio of both positive and negative charged mesons, choosing temperature and baryonic chemical potential along the chiral phase transition line to show how matter properties can affect to the mesons ratio.