2007/01/19 by Thorsten Renk, Jörg Ruppert, Jorg Ruppert · 1 citation
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph
paper · pdf · doi:10.1142/s0218301307009087
published as Int.J.Mod.Phys.E16:3100-3107,2008 · Talk given at the XI International Workshop on Correlation and Fluctuation in Multiparticle Production, Hangzhou, China, 21-24 Nov. 2006
arxiv created 2007/01/19 · openalex publication_date 2007/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28
Hard partons propagating through hot and dense matter lose energy, leading to the observed depletion of hard hadron spectra in nucleus nucleus collision as compared to scaled proton proton collisions. This lost energy has to be redistributed in the medium due to the conservation of energy, which is manifest in the p T dependence of the angular correlation pattern of hadrons associate with a (semi-) hard trigger. While at low p T a splitting of a broad peak is observed, at high p T the structure shows vacuum width, albeit with reduced yield. This sugests a transfer of energy from hard partons to a collectively recoiling medium. We present a systematic study of these phenomena using a realistic medium evolution and a Monte-Carlo simulation of the experimental trigger and show what information about the medium can be derived from multiparticle correlations.