Quark Matter 2018

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!

A new correlator for the detection and characterization of the Chiral Magnetic Effect

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

Speaker

Shuzhe Shi (Indiana University)

Description

A charge-sensitive in-event correlator ($R(\Delta S)$) is proposed and tested for its efficacy to detect and characterize charge separation associated with the Chiral Magnetic Effect (CME) in heavy ion collisions~[1]. For CME-driven charge separation, the correlator gives a concave response relative to the second-order event plane ($\Psi_2$), and a null response relative to the third-order plane ($\Psi_3$), consistent with the correlation (de-correlation) of the $\vec{B}$-field with the $\Psi_2$ ($\Psi_3$) plane. For non-CME background, the correlator gives responses, relative to $\Psi_2$ and $\Psi_3$, which allows a distinction between CME-driven charge separation and non-CME backgrounds. We discuss the $R(\Delta S)$ correlator and present results for its detailed response and sensitivity, to both signal and background, in several reaction models. They include (but are not limited to) a 3+1-dimensional hydrodynamic model [2], the Anomalous Viscous Fluid Dynamics (AVFD) model [3] and the Multi-Phase Transport model (AMPT) [4]. The implications for the use of the $R(\Delta S)$ correlator in the upcoming Isobar Run at RHIC will also be discussed.

[1] N. Magdy, S. Shi, J. Liao, N. Ajitanand, and R. A. Lacey, arXiv:1710.01717

[2] P. Bozek, arXiv:1711.02563

[3] S. Shi, Y. Jiang, E. Lilleskov, J. Liao, arXiv:1711.02496

[4] Lin Z W et al. Phys.Rev. C72 064901 (2005)

Content type Experiment Presenter name will be specified later

Primary authors

Mr Niseem Abdelrahman"Magdy" (Stony Brook University) Roy Lacey (Stony Brook University) Jinfeng Liao (Indiana University) Shuzhe Shi (Indiana University)

Presentation materials

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