We calculate the net-kaon mean-over-variance in the hadron resonance gas model and compare it to the experimental data by the STAR collaboration. We show that it is not possible to match the experimental values using the freeze-out parameters obtained from a combined fit of net-proton and net-electric charge mean-over-variance. At the highest collision energies, kaons need about 10-15 MeV higher freeze-out temperatures than the light hadrons. We also predict the variance-over-mean and skewness-times-variance for net-Λ particles at the light and strange chemical freeze-out parameters. It turns out that these Λ fluctuations are sensitive to the difference in the freeze-out temperatures observed in our analysis.
|Original language||English (US)|
|Journal||Journal of Physics: Conference Series|
|State||Published - Sep 18 2018|
|Event||34th Winter Workshop on Nuclear Dynamics 2018 - Deshaies, Guadeloupe|
Duration: Mar 25 2018 → Mar 31 2018
ASJC Scopus subject areas
- Physics and Astronomy(all)