Fluctuations of charge separation perpendicular to the event plane and local parity violation insNN=200GeV Au + Au collisions at the BNL Relativistic Heavy Ion Collider
Citations Over TimeTop 10% of 2013 papers
Abstract
Previous experimental results based on data ($\ensuremath{\sim}$$15\ifmmode\times\else\texttimes\fi{}{10}^{6}$ events) collected by the STAR detector at the BNL Relativistic Heavy Ion Collider suggest event-by-event charge-separation fluctuations perpendicular to the event plane in noncentral heavy-ion collisions. Here we present the correlator previously used split into its two component parts to reveal correlations parallel and perpendicular to the event plane. The results are from a high-statistics 200-GeV Au + Au collisions data set ($57\ifmmode\times\else\texttimes\fi{}{10}^{6}$ events) collected by the STAR experiment. We explicitly count units of charge separation from which we find clear evidence for more charge-separation fluctuations perpendicular than parallel to the event plane. We also employ a modified correlator to study the possible $\mathcal{P}$-even background in same- and opposite-charge correlations, and find that the $\mathcal{P}$-even background may largely be explained by momentum conservation and collective motion.
Related Papers
- → Perpendicular Orientations in Polyethylene(1954)44 cited
- → Bicrystal structure of tilted perpendicular media for ultra-high-density recording(2003)4 cited
- → Planes and Lines(1968)
- → General Carryover Matrix of Plane Rod Loaded Perpendicular to Its Plane(2000)
- → The Position of Points, Lines and Planes in a Mosque Construction for Geometrical Visualisation(2023)