Burnier, Y.; Kharzeev, D.E.; Liao, J.; Yee, H.U. (2012). From the chiral magnetic wave to the charge dependence of elliptic flow (Unpublished)

Text
1208.2537v1.pdf Available under License BORIS Standard License. Download (384kB)  Preview 
The quarkgluon plasma formed in heavy ion collisions contains charged chiral fermions evolving in an external magnetic field. At finite density of electric charge or baryon number (resulting either from nuclear stopping or from fluctuations), the triangle anomaly induces in the plasma the Chiral Magnetic Wave (CMW). The CMW first induces a separation of the right and left chiral charges along the magnetic field; the resulting dipolar axial charge density in turn induces the oppositely directed vector charge currents leading to an electric quadrupole moment of the quarkgluon plasma. Boosted by the strong collective flow, the electric quadrupole moment translates into the charge dependence of the elliptic flow coefficients, so that $v_2(\pi^+) < v_2(\pi^)$ (at positive net charge). Using the latest quantitative simulations of the produced magnetic field and solving the CMW equation, we make further quantitative estimates of the produced $v_2$ splitting and its centrality dependence. We compare the results with the available experimental data.
Item Type: 
Working Paper 

Division/Institute: 
08 Faculty of Science > Institute of Theoretical Physics 
UniBE Contributor: 
Burnier, Yannis 
Language: 
English 
Submitter: 
Esther Fiechter 
Date Deposited: 
04 Oct 2013 14:42 
Last Modified: 
09 Nov 2016 10:50 
ArXiv ID: 
1208.2537v1 
BORIS DOI: 
10.7892/boris.17039 
URI: 
https://boris.unibe.ch/id/eprint/17039 (FactScience: 224758) 