2008/04/28 by Michael P. McCumber, M P McCumber
Physics and Astronomy · #Consistency (knowledge bases) #Heavy ion #High-Energy Particle Collisions Research #Jet quenching #Momentum (technical analysis) #Particle (ecology) #Particle physics theoretical and experimental studies #Parton #Proton #Quantum Chromodynamics and Particle Interactions #Quenching (fluorescence) #nucl-ex
paper · pdf · doi:10.1088/0954-3899/35/10/104081
published as J.Phys.G35:104081,2008 · 4 pages, 4 figures, Quark Matter 2008 conference proceedings
arxiv created 2008/04/28 · openalex publication_date 2008/09/17 · openalex created_date 2016/06/24 · arxiv updated 2019/08/13 · openalex updated_date 2026/08/06
Comparison of two-particle correlations in heavy-ion collisions with measurements in proton collisions shows strong modification of the correlation shape and particle yields. Two new structures are created; both extended in Δη, one centered at Δϕ = 0 ('ridge') and the other occurring at Δϕ ≈ π ± 1.1 ('shoulder'). In these proceedings, we describe the measurements of these structures that show consistency with a scenario of parton–medium interaction and response. We discuss a new analysis with improved resolution in selections on the angle of trigger particles relative to the reaction plane. New measurements of the centrality and p T dependences of the structures raise the possibility that the same production mechanism may give rise to both phenomena.