Fluid dynamics of heavy ion collisions with mode expansion (FluiduM)

• Verfasst von: Flörchinger, Stefan [VerfasserIn]
• Verfasst von: Grossi, Eduardo [VerfasserIn]
• Verfasst von: Lion, Jorrit [VerfasserIn]
• Titel: Fluid dynamics of heavy ion collisions with mode expansion (FluiduM)
• Verf.angabe: Stefan Floerchinger, Eduardo Grossi and Jorrit Lion
• Fussnoten: Gesehen am 18.01.2019
• Titel Quelle: Enthalten in: De.arxiv.org
• Jahr Quelle: 2018
• Band/Heft Quelle: (2018) Artikel-Nummer 1811.01870, 37 Seiten
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1586278509

Abstract

The fluid dynamics of a relativistic fireball with longitudinal and transverse expansion is described using a background-fluctuation splitting. Symmetry representations of azimuthal rotations and longitudinal boosts are used for a classification of initial state configurations and their fluid dynamic propagation in terms of a mode expansion. We develop an accurate and efficient numerical scheme based on the pseudo-spectral method to solve the resulting hyperbolic partial differential equations. Comparison to the analytically known Gubser solution underlines the high accuracy of this technique. We also present first applications of FluiduM to central heavy ion collisions at the LHC energies featuring a realistic thermodynamic equations of state as well as shear and bulk viscous dissipation.