Conference page:
https://indico.cern.ch/event/1353482/
Abstract:
Correlations and fluctuations measured by STAR experiment.
Daniel Wielanek for the STAR Collaboration

The STAR (Solenoidal Tracker at RHIC) experiment is conducted at the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory. Originally designed to study the properties of the Quark-Gluon Plasma (QGP) and the nature of strongly interacting matter under extreme conditions similar to those in the early Universe, STAR's scope expanded with the initiation of the Beam Energy Scan program. This program broadened the investigation to include the region of high baryonic densities, making STAR an excellent tool for studying the phase diagram of strongly interacting matter.

This talk report focuses on measurements of correlations and fluctuations performed by STAR. Fluctuation measurements are crucial for understanding the thermodynamic properties of QGP phase transitions, including the search for critical points. Femtoscopic measurements, which are based on the correlation of pairs of particles, allow us to explore the dynamics of the collision process. These measurements also enable the study of interactions between various pairs of particles, which is essential for predicting the behavior of matter under extreme conditions, such as those inside neutron stars.

The STAR measurements in these areas play a significant role in advancing both high-energy physics and astrophysics.