2007/07/31 by Barbara Betz, Philip Rau, H. Stöcker +1 · 9 citations
Physics and Astronomy · #Baryon #Elliptic flow #Equation of state #Flow (mathematics) #Hadron #Heavy ion #High-Energy Particle Collisions Research #Ion #Jet (fluid) #Large Hadron Collider #Mach number #Mechanics #Nuclear physics #Particle physics #Particle physics theoretical and experimental studies #Phase transition #Physics #Plasma #Quantum Chromodynamics and Particle Interactions #Quark–gluon plasma #State of matter #Strange matter #Thermodynamics #hep-th
paper · pdf · doi:10.1142/s0218301307009075
published in International Journal of Modern Physics E 16(10), 3082-3099 (World Scientific) · 18 pages, 12 figures, presented at the IWCF 2006, Nov. 21-24, Hangzhou, China
arxiv created 2007/08/13 · openalex publication_date 2007/11/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
A critical discussion of the present signals for the phase transition to quark-gluon plasma (QGP) is given. Since hadronic rescattering models predict much larger flow than observed from 1 to 50 A GeV laboratory bombarding energies, this observation is interpreted as potential evidence for a first-order phase transition at high baryon density. A detailed discussion of the collective flow as a barometer for the equation of state (EoS) of hot dense matter at RHIC follows. Here, hadronic rescattering models can explain < 30% of the observed elliptic flow v 2 for p T > 2 GeV / c . This is interpreted as an evidence for the production of superdense matter at RHIC. The connection of v 2 to jet suppression is examined. A study of Mach shocks generated by fast partonic jets propagating through the QGP is given. The main goal is to take into account different types of collective motion during the formation and evolution of this matter. A significant deformation of Mach shocks in central Au + Au collisions at RHIC and LHC energies as compared to the case of jet propagation in a static medium is predicted. A new hydrodynamical study of jet energy loss is presented.