Nuclear suppression of light hadrons and single electrons at the RHIC and LHC

2013/04/30 by B. G. Zakharov, Б. Г. Захаров · 2 citations
Physics and Astronomy · #Anisotropy #Electron #Hadron #High-Energy Particle Collisions Research #Large Hadron Collider #Nuclear physics #Optics #Particle physics #Particle physics theoretical and experimental studies #Parton #Physics #Quantum Chromodynamics and Particle Interactions #Radiative transfer #hep-ph #nucl-th

paper · pdf · doi:10.1088/0954-3899/40/8/085003

14 pages, 5 figures, J.Phys. G accepted

arxiv created 2013/06/22 · openalex publication_date 2013/07/01 · arxiv updated 2015/06/15 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05

Abstract

We examine whether it is possible to simultaneously describe the experimental data from the RHIC and LHC on nuclear suppression of light hadrons and non-photonic single electrons in the pQCD picture of parton energy loss. We perform calculations accounting for both radiative and collisional energy loss. We show that once the coupling constant is fixed from comparison with data on the nuclear modification factor for light hadrons, it gives a satisfactory agreement with data on the electron R AA and azimuthal anisotropy v 2 . Our results show that the collisional mechanism is of only marginal significance in the nuclear suppression of single electrons except for the bottom contribution at momenta ≲ 6–8 GeV.

Citations

• Jet suppression of pions and single electrons at Au+Au collisions at the BNL Relativistic Heavy Ion Collider
• Anomalous mass dependence of radiative quark energy loss in a finite-size quark-gluon plasma
• Multiple collisions and induced gluon bremsstrahlung in QCD
• Radiative energy loss of high energy quarks and gluons in a finite volume quark-gluon plasma
• From entropy and jet quenching to deconfinement?
• CTEQ6 parton distributions with heavy quark mass effects
• Improving a radiative plus collisional energy loss model for application to RHIC and LHC
• Fragmentation functions for pions, kaons, and protons at next-to-leading order
• Neutral pion production with respect to centrality and reaction plane in Au+Au collisions atsNN=200GeV
• Fully quantum treatment of the Landau-Pomeranchik-Migdal effect in QED and QCD
• Radiative energy loss of high-energy quarks in finite-size nuclear matter and quark-gluon plasma

Cited by

• Flavor dependence of jet quenching in pp collisions and its effect on R AA for heavy mesons
• Radiative p_⊥ -broadening of fast partons in an expanding quark–gluon plasma