February 27, 2023 to March 3, 2023
Europe/Moscow timezone

Strange to non-strange ratios in the SU(3) NJL-like models

Mar 2, 2023, 2:40 PM
Blokhintsev Auditorium, 4th floor

Blokhintsev Auditorium, 4th floor



Alexandra Friesen (Joint Institute for Nuclear Research)


A sharp peak in the ratio of strange to non-strange mesons in relativistic heavy-ion collision is discussed in the framework of the SU(3) Polyakov-loop extended NJL model with vector interaction. In the model, the $K^+/\pi^+$ ratio was calculated along the chiral phase transition line for different values of the vector coupling $g_V$. We showed that the value of the vector coupling had no significant effect on the $K^+/\pi^+$ behaviour. We present a comparison with the experimental pattern of kaon-to-pion ratios within the Beth-Uhlenbeck approach and using $x$-dependent pion and strange quark potentials. The brief discussion of the possibility to describe the $\Lambda/\pi^-$ ratio in the frame of PNJL model is presented.

Primary author

Alexandra Friesen (Joint Institute for Nuclear Research)

Presentation materials