2017/04/24 by You Zhou, Y. Zhou · 1 citation
Physics and Astronomy · #Anisotropy #Condensed matter physics #Flow (mathematics) #High-Energy Particle Collisions Research #Large Hadron Collider #Mechanics #Nuclear physics #Observable #Optics #Order (exchange) #Particle physics theoretical and experimental studies #Physics #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #nucl-ex #nucl-th
paper · pdf · doi:10.1016/j.nuclphysa.2017.04.016
published in Nuclear Physics A 967, 377-380 (Elsevier BV) · 4 pages, 3 figures, XXVIth International Conference on Ultrarelativistic Nucleus-Nucleus Collisions (Quark Matter 2017), Chicago, US
arxiv created 2017/04/24 · openalex created_date 2017/05/05 · openalex publication_date 2017/09/25 · arxiv updated 2018/01/03 · openalex updated_date 2026/08/05
The second and the third order anisotropic flow, V2 and V3, are determined by the corresponding initial spatial anisotropy coefficients, ε2 and ε3, in the initial density distribution. On the contrary, the higher order anisotropic flow Vn(n>3), in addition to their dependence on the same order initial anisotropy coefficient εn, have a significant contribution from lower order initial anisotropy coefficients, which leads to mode-coupling effects. In this contribution, we present the investigations on linear and non-linear modes in higher order anisotropic flow (V4, V5 and V6) in Pb–Pb collisions at sNN=2.76 TeV using the ALICE detector at the Large Hadron Collider (LHC). A significant contribution from a non-linear mode is observed. A new observable, the non-linear response coefficient, is measured as well. The comparison to theoretical calculations provides crucial information on dynamic of the created system especially at the freeze-out conditions, which are poorly known from previous flow measurements.