Speaker
Alpatov, Egor
(NRNU MEPhI)
Description
Vortical structure of hot-dense matter in heavy ion collisions can be observed through global polarization of emitted particles.
Hyperon's weak decays provides opportunity to measure this phenomenon. Global polarization of $\Lambda$ hyperons 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 of multistrange hyperons, such as $\Xi$, can provide new information for hydrodynamic description of the system and its vorticity structure. In this talk, we will report results of $\Xi$ global polarization measurement for Au+Au collisions at $\sqrt{s_{NN}}$ = 19.6 and 27 GeV.
Primary author
Alpatov, Egor
(NRNU MEPhI)
Peer reviewing
Paper
Paper files:
