2014/10/31 by STAR Collaboration, L. Adamczyk, J. K. Adkins +346 · 1 citation
Physics and Astronomy · #Astrophysics #Context (archaeology) #Gluon #Hadron #Hadronization #High-Energy Particle Collisions Research #Jet (fluid) #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quark #Quark–gluon plasma #Scaling #Star (game theory) #nucl-ex
paper · pdf · doi:10.1016/j.physletb.2015.10.037
arxiv created 2015/10/12 · openalex publication_date 2015/10/25 · arxiv updated 2015/11/18 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/05
The STAR Collaboration presents for the first time two-dimensional di-hadron correlations with identified leading hadrons in 200 GeV central Au + Au and minimum-bias d + Au collisions to explore hadronization mechanisms in the quark gluon plasma. The enhancement of the jet-like yield for leading pions in Au + Au data with respect to the d + Au reference and the absence of such an enhancement for leading non-pions (protons and kaons) are discussed within the context of a quark recombination scenario. The correlated yield at large angles, specifically in the ridge region , is found to be significantly higher for leading non-pions than pions. The consistencies of the constituent quark scaling, azimuthal harmonic model and a mini-jet modification model description of the data are tested, providing further constraints on hadronization.