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!

Measurement of the Sixth-order Cumulant of Net-charge Distributions in Au+Au Collisions at √sNN = 200 GeV by the STAR Experiment

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 Correlations and fluctuations Poster Session


Tetsuro Sugiura (University of Tsukuba, Japan)


In heavy-ion collision experiments, the study of event-by-event fluctuations is a powerful tool to characterize the thermodynamic properties of the hot and dense QCD matter. According to the Lattice QCD calculations, an analytic cross-over exists at small $\mu_{B}$ regions but there is no experimental evidence for the location of predicted cross-over. Experimentally, it is thought that up to the sixth-order cumulant and the ratio to the variance may be the signal of the cross-over. The STAR experiment presented up to the fourth-order cumulant ratios of net-charge and up to the sixth-order of net-proton fluctuations at $\sqrt{s_{NN}}=200$ GeV. However, the fifth and sixth-order cumulant of net-charge have not been presented yet. This poster presents measurements of cumulants from the first- to sixth-order and the ratio to the variance of net-charge using particle species and $p_{T}$ dependent efficiency corrections for Au+Au collisions at $\sqrt{s_{NN}}=200$ GeV during Beam Energy Scan in 2010 and 2011.

Collaboration STAR
Centralised submission by Collaboration Presenter name already specified
Content type Experiment

Primary author

Zhenyu Ye (University of Illinois at Chicago)

Presentation materials