6–12 Apr 2025
Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany
Europe/Berlin timezone

Search for the critical point via intermittency analysis in NA61/SHINE

Not scheduled
20m
Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Poster QCD phase diagram & critical point Poster session 1

Speaker

Valeria Zelina Reyna Ortiz (Jan Kochanowski University (PL))

Description

The existence and location of the QCD critical point are objects of both experimental and theoretical studies. The comprehensive data collected by NA61/SHINE during a two-dimensional scan in beam momentum and system size allow for a systematic search for the critical point - a search for a non-monotonic dependence of various correlation and fluctuation observables on collision energy and size of colliding nuclei.

Intermittency analysis, a statistical tool employed in heavy ion collisions, studies scaled factorial moments (SFMs) of multiplicity distributions in 2D transverse momentum space. This method helps detect power-law fluctuations and probe different aspects of the QCD phase diagram. While proton intermittency has been traditionally used to locate the critical point, recent efforts have extended this analysis to negatively charged hadrons to gain further insights into QCD interactions.

This contribution presents an overview of the results obtained from proton intermittency in Ar+Sc and Pb+Pb interactions and negatively charged hadron intermittency analyses in Xe+La interactions. The presentation will cover methodologies used to address the impact of background noise and the effects of short-range correlations, which may produce misleading power-law signals.

Category Experiment
Collaboration (if applicable) NA61/SHINE

Author

Valeria Zelina Reyna Ortiz (Jan Kochanowski University (PL))

Presentation materials