Elliptic flow due to radiation in heavy-ion collisions

Abstract

In this paper we demonstrate that radiation patterns could cause flow-like behaviour without any reference to hydrodynamic description. For that purpose we use a statistical ensemble of radiating dipoles, motivated by the investigation of the equivalent photon yield produced by decelerating charges. For the elliptic asymmetry factor we find a reasonable agreement with experimental data.

5 pages, 5 figures, v2: discussion on the physical interpretation of the form factor F is added

References in corpus (9)

• Viscosity Information from Relativistic Nuclear Collisions: How Perfect is the Fluid Observed at RHIC?
• Dissipative Hydrodynamics and Heavy Ion Collisions
• Anisotropic flow in sqrt(s)=2.76 TeV Pb+Pb collisions at the LHC
• Particle spectra in Pb-Pb collisions at 2.76 TeV
• Components of the elliptic flow in Pb-Pb collisions at 2.76 TeV
• Initial state angular asymmetries in high energy p+A collisions: spontaneous breaking of rotational symmetry by a color electric field and C-odd fluctuations
• Non-Abelian Bremsstrahlung and Azimuthal Asymmetries in High Energy p+A Reactions
• Initial-State Bremsstrahlung versus Final-State Hydrodynamic Sources of Azimuthal Harmonics in p+A at RHIC and LHC
• A perturbative approach to the hydrodynamics of heavy ion collisions