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

Measurement of global polarization of $\Lambda$ and $\bar{\Lambda}$ in Au+Au collisions from the RHIC Beam Energy Scan-II

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 Light and strange flavor physics & nuclei Poster session 2

Speaker

Tong Fu (Shandong University)

Description

Significant global hyperon polarization has been observed in non-central heavy ion collisions providing evidence of the vorticity of QGP. This effect can serve as a new probe in exploring fluid properties of strongly interacting matter. We present results of $\Lambda$ and $\bar{\Lambda}$ global polarization in Au+Au collisions at $\sqrt{s_{NN}}$=7.7, 9.2, 11.5, 14.6 and 17.3 GeV from RHIC BES-II with upgraded STAR detectors. These results offer new insights into the polarization mechanism and vorticity fields in heavy-ion collisions, enabling the study of possible magnetic field-driven effects through the polarization difference between $\Lambda$ and $\bar{\Lambda}$ hyperons.

Category Experiment
Collaboration (if applicable) STAR

Author

Tong Fu (Shandong University)

Presentation materials