May 13 – 19, 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Global Polarizations of Phi-meson and Lambda in Heavy Ion Collisions

May 15, 2018, 5:00 PM
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Chirality, vorticity and polarisation effects Poster Session


Mr Shaowei Lan (Central China Normal University)


In non-central relativistic heavy ion collisions, the created matter possesses a large initial orbital angular momentum. Particles produced in the collisions could be polarized globally in the direction of the orbital angular momentum due to spin-orbit coupling. Recently, the STAR experiment has presented the polarization signals for Λ hyperons and possible spin alignment signals for phi mesons. These results opened a new direction for better understanding the medium properties in such collisions.
In this talk, we will present the results of our study on the polarizations of both phi-mesons and Lambda hyperons. A multi-phase transport (AMPT) model is used in our analysis, and these results will be compared with published data. We will focus on the effects of finite experimental coverage on the global polarizations

Centralised submission by Collaboration Presenter name already specified
Content type Experiment

Primary authors

Mr Shaowei Lan (Central China Normal University) Prof. Zi-Wei Lin (Central China Normal University and East Carolina University) Prof. Shusu Shi (Central China Normal University) Dr Xu Sun (Central China Normal University)

Presentation materials