2018/08/22 by M. J. Tannenbaum, Tannenbaum, M. J.
Physics and Astronomy · #FOS: Physical sciences #High-Energy Particle Collisions Research #Nuclear Experiment (nucl-ex) #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.1808.07357
openalex publication_date 2018/08/22 · openalex created_date 2018/08/31 · openalex updated_date 2026/07/28
The renewed interest in analyzing RHIC data on di-hadron correlations as probes of final state transverse momentum broadening as shown at Quark Matter 2018[1] by theoretical calculations[6] compared to experimental measurements[4,5] led me to review the quoted theoretical calculations and experimental measurements because the theoretical calculation[6] does not show the PHENIX measurements[4] as published. The above references were checked and fits were performed to the published measurements[4,7] to determine qL from the measured azimuthal broadening to compare with the theoretical calculation[6]. The new results will be presented in addition to some corrections to the previous work[3]. The measured values of qL show the interesting effect of being consistent with zero for larger values of associated pTa≥3 GeV/c which is shown to be related to well known measurements of the ratio of the Au+Au to p+p associated pTa distributions for a given trigger pTt called IAA[23,25]. Di-jets rather than di-hadrons are proposed as an improved azimuthal broadening measurement to determine qL and possibly q.