2019/11/12 by Giuliano Giacalone, François Gelis, Pablo Guerrero-Rodríguez +3 · 2 citations
Physics and Astronomy · #Color-glass condensate #Elliptic flow #Heavy ion #High-Energy Particle Collisions Research #Inverse #Ion #Large Hadron Collider #Nuclear physics #Observable #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #Saturation (graph theory) #hep-ex #hep-ph #nucl-ex #nucl-th
paper · pdf · doi:10.1007/978-3-030-53448-6_71
published in Springer proceedings in physics, 453-457 (Springer Nature) · 5 pages; 2 figures
arxiv created 2019/11/12 · openalex created_date 2019/11/22 · openalex publication_date 2020/01/01 · arxiv updated 2021/02/23 · openalex updated_date 2026/08/05
Fluctuations in the initial state of heavy-ion collisions are larger at RHIC energy than at LHC energy. This fact can be inferred from recent measurements of the fluctuations of the particle multiplicities and of elliptic flow performed at the two different energies. We show that an analytical description of the initial energy-density field and its fluctuations motivated by the color glass condensate (CGC) effective theory predicts and quantitatively captures the measured energy evolution of these observables. The crucial feature is that fluctuations in the CGC scale like the inverse of the saturation scale of the nuclei.