11-16 July 2022
Europe/Moscow timezone
For authors of online talks: we will send videoconference links 1 day before the session to e-mail addresses specified in the Registration form

Global polarization of Λ and Ξ hyperons in Au+Au collisions in the STAR experiment

Not scheduled
20m
НИИЯФ, ЮК, ауд. 3-13

НИИЯФ, ЮК, ауд. 3-13

Oral talk (15 min + 5 min questions) Intermediate and high energies, heavy ion collisions

Speaker

Egor Alpatov

Description

Global polarization of $\Lambda$ hyperons appearing in non-central heavy-ion collisions was measured by the STAR experiment at RHIC for Au+Au collisions with $\sqrt{s_{NN}}$ = 3-200 GeV and at the LHC for Pb+Pb collisions with $\sqrt{s_{NN}}$ = 2.76 and 5.02 TeV. Global polarization reflects the vortical structure of quark-gluon matter at its initial evolution stage.
Global polarization of multistrange hyperons, such as $\Xi$, can provide new information for hydrodynamic description of the system and its vorticity nature. In this talk, we will report results of $\Xi$ and $\Lambda$ global polarization measurement for Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6, 27, and 54.4 GeV.

The speaker is a student or young scientist Yes
Section 3. Intermediate and high energies, heavy ion collisions

Primary author

Egor Alpatov

Presentation Materials