2002/01/31 by Fuqiang Wang
Physics and Astronomy · #Biology #Botany #Gluon #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Physics #Pion #Quantum Chromodynamics and Particle Interactions #Quantum chromodynamics #Rapidity #Saturation (graph theory) #Systematics #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1088/0954-3899/28/7/380
published as J.Phys.G28:2109-2113,2002 · 4 pages, 3 figures. SQM-2001 proceedings
openalex publication_date 2002/06/19 · arxiv created 2002/08/20 · arxiv updated 2009/11/30 · openalex created_date 2017/03/16 · openalex updated_date 2026/08/06
It is observed that K − /π in A + A and possibly p + p and + p collisions follows interesting systematics in ω, the pion transverse energy per unit of rapidity and transverse overlap area. The systematics show a linear increase of K − /π with ω in the AGS and SPS energy regime and a saturation at RHIC energy. The systematics indicate that ω might be the relevant variable underlying K − /π. At high energy, the ω variable is related to the gluon saturation scale in high density QCD, and perhaps to the initial energy density in the Bjorken picture.