Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration by Quan WangCharge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration by Quan Wang

Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for…

byQuan Wang

Hardcover | August 16, 2013

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It has been suggested that local parity violation (LPV) in Quantum Chromodynamics (QCD) would lead to charge separation of quarks by the Chiral Magnetic Effect (CME) in heavy ion collisions. Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for STAR Collaboration presents the detailed study of charge separation with respect to the event plane.

Results on charge multiplicity asymmetry in Au+Au and d+Au collisions at 200 GeV by the STAR experiment are reported. It was found that the correlation results could not be explained by CME alone. Additionally, the charge separation signal as a function of the measured azimuthal angle range as well as the event-by-event anisotropy parameter are studied. These results indicate that the charge separation effect appears to be in-plane rather than out-of-plane. It is discovered that the charge separation effect is proportional to the event-by-event azimuthal anisotropy and consistent with zero in events with zero azimuthal anisotropy.

These studies suggest that the charge separation effect, within the statistical error, may be a net effect of event anisotropy and correlated particle production. A potential upper limit on the CME is also presented through this data.

Current affiliation: Quan Wang University of Kansas Department of Physics and Astronomy 1082 Malott, 1251 Wescoe Hall Dr. Lawrence, KS 66045-7582 Research performed at: Purdue University West Lafayette, IN USA Quan Wang received his PhD in 2012 from Purdue University. His work has been recognized with the George W. Tautfest Award from ...
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Title:Charge Multiplicity Asymmetry Correlation Study Searching for Local Parity Violation at RHIC for…Format:HardcoverDimensions:134 pagesPublished:August 16, 2013Publisher:Springer-Verlag/Sci-Tech/TradeLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:3319007556

ISBN - 13:9783319007557

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Table of Contents

Strong Interaction and Quantum Chromodynamics.- Quark-Gluon Plasma and Chiral Symmetry.- Chiral Magnetic Effect and Local Parity Violation.- Anisotropic Flow and Three-Particle Correlator.- Experiment.- Relativistic Heavy Ion Collider.- STAR Experiment.- Data Analysis.- Charge Multiplicity Asymmetry Observables.- Data Sets.- Quality Cuts.- Detector Efficiency Correction.- Event Plane Reconstruction.- Self-Correlation.- Statistical Fluctuation and Detector Effect.- Consistency Check.- Systematic Uncertainties.- Results and Discussions.- Charge Asymmetry Correlations.- Charge Asymmetry pt Dependence.- Event-by-Event Anisotropy Dependence.- Wedge Size and Location Dependence.- Discussion.