Physics – Nuclear Physics – Nuclear Experiment
Scientific paper
2010-09-28
Phys.Rev.C83:011901,2011
Physics
Nuclear Physics
Nuclear Experiment
Six pages 13 figures. Submitted for publication
Scientific paper
10.1103/PhysRevC.83.011901
A new method is presented for the quantitative measurement of charge separation about the reaction plane. A correlation function is obtained whose shape is concave when there is a net separation of positive and negative charges. Correlations not specifically associated with charge, from flow, jets and momentum conservation, do not influence the shape or magnitude of the correlation function. Detailed simulations are used to demonstrate the effectiveness of the method for the quantitative measurement of charge separation. Such measurements are a pre-requisite to the investigation of topological charge effects in the QGP as derived from the "strong $\cal{CP}$ problem".
Ajitanand N. N.
Alexander Michael J.
Lacey Roy A.
Taranenko Arkadij
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