10-12 June 2025
BITP & Zoom
Europe/Kiev timezone

High-order cumulants near the critical point from molecular dynamics

10 Jun 2025, 16:30
20m
BITP & Zoom

BITP & Zoom

14b Metrolohichna str., Kyiv, Ukraine & Online
Oral talk Physics of Nuclei and Elementary Particles Physics of Nuclei and Elementary Particles

Speaker

Volodymyr Kuznietsov

Description

We calculate non-Gaussian cumulants of particle number near the 3D-Ising critical point by means of GPU-accelerated molecular dynamics simulations. We perform ensemble averaging with large statistics, and study the equilibration of cumulants near the critical point. We find that scaled variance, skewness, and kurtosis reflect the expected critical behavior of fluctuations and equilibrate on comparable time scales. We also incorporate Bjorken-like collective flow model to study the behavior of non-Gaussian fluctuations in the rapidity space. The results are put in the context of measurements of cumulants and factorial cumulants of protons in heavy-ion collisions at RHIC.

Primary authors

Volodymyr Kuznietsov Prof. Volodymyr Vovchenko (University of Houston) Mark Gorenstein (Bogolyubov Institute for Theoretical Physics, National Academy of Sciences of Ukraine) Prof. Volker Koch (Lawrence Berkeley National Laboratory (LBNL))

Presentation Materials

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