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

The sign change of the four-particle cumulant in small systems from hydrodynamics and momentum conservation

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster Collectivity in small systems Poster Session

Speaker

Dr Guo-Liang Ma (Shanghai INstitute of Applied Physics (SINAP), CAS)

Description

The azimuthal cumulants, $c_2\{2\}$ and $c_2\{4\}$, originating from the global conservation of transverse momentum [1] in the presence of hydro-like elliptic flow are calculated [2]. We observe a sign change of $c_2\{4\}$ for small number of produced particles, which is in a qualitative agreement with the recent ATLAS measurement of multi-particle azimuthal correlations with the subevent cumulant method [3]. Our results offer a new insight into the problem of the onset of collectivity in small systems.

References
1. Adam Bzdak and Guo-Liang Ma, arXiv: 1710.00653.
2. Adam Bzdak and Guo-Liang Ma, in preparation.
3. The ATLAS Collaboration, arXiv:1708.03559.

Centralised submission by Collaboration Presenter name already specified
Content type Theory

Primary author

Dr Guo-Liang Ma (Shanghai INstitute of Applied Physics (SINAP), CAS)

Co-author

Adam Bzdak (AGH University of Science and Technology)

Presentation Materials

Your browser is out of date!

If you are using Internet Explorer, please use Firefox, Chrome or Edge instead.

Otherwise, please update your browser to the latest version to use Indico without problems.

×