Reexamining the iconic dihadron correlation measurement demonstrating jet quenching

Abstract

Early measurements at the Relativistic Heavy Ion Collider (RHIC) demonstrated jet quenching through the suppression of pairs of high momentum hadrons. These dihadron correlations have a large correlated background. As understanding of the background improved, it was recognized in the field that a significant term was omitted from the background and several dihadron correlation results were quantitatively and qualitatively incorrect. The original measurements demonstrating jet quenching have not been revisited. These measurements are repeated in this paper in a kinematic range similar to the original measurement using publicly available data, applying current knowledge about the background. The new results are qualitatively consistent with the previous results, demonstrating complete suppression of the away-side within uncertainties.

Version accepted by PRC

References in corpus (4)

• Dihadron azimuthal correlations in Au+Au collisions at sqrt(s_NN)=200 GeV
• Transverse momentum and centrality dependence of dihadron correlations in Au+Au collisions at sqrt(s_NN)=200 GeV: Jet-quenching and the response of partonic matter
• Disappearance of the Mach Cone in heavy ion collisions
• Particle-species dependent modification of jet-induced correlations in Au+Au collisions at sqrt(s_NN) = 200 GeV

Cited by in corpus (1)

• Measurements of jets in heavy ion collisions