Cylindrically symmetric diffusion model for relativistic heavy-ion collisions

• Verfasst von: Hölck, Johannes [VerfasserIn]
• Verfasst von: Wolschin, Georg [VerfasserIn]
• Titel: Cylindrically symmetric diffusion model for relativistic heavy-ion collisions
• Verf.angabe: Johannes Hoelck and Georg Wolschin
• E-Jahr: 2024
• Jahr: May 2024
• Umfang: 13 S.
• Illustrationen: Illustrationen
• Fussnoten: Zuerst veröffentlicht: 07. März 2024 ; Gesehen am 11.07.2024
• Titel Quelle: Enthalten in: Annalen der Physik
• Ort Quelle: Berlin : Wiley-VCH, 1799
• Jahr Quelle: 2024
• Band/Heft Quelle: 536(2024), 5 vom: Mai, Artikel-ID 2300307, Seite 1-13
• ISSN Quelle: 1521-3889
• DOI: doi:10.1002/andp.202300307
• Datenträger: Online-Ressource
• Sprache: eng
• Sach-SW: 2D distribution functions
• Sach-SW: charged-hadron distributions
• Sach-SW: comparison with LHC data
• Sach-SW: nonequilibrium-statistical theory
• Sach-SW: relativistic heavy-ion collisions
• K10plus-PPN: 1895116473

Abstract

A relativistic diffusion model with cylindrical symmetry, which propagates an initial state based on quantum chromodynamics in time toward a thermal equilibrium limit, is derived from nonequilibrium-statistical considerations: adapting an existing framework for Markovian stochastic processes representing relativistic phase-space trajectories, a Fokker-Planck equation is obtained for the time evolution of particle-number distribution functions with respect to transverse and longitudinal rapidity. The resulting partially-evolved distribution functions are transformed to transverse-momentum and pseudorapidity space, and compared with charged-hadron data from the CERN Large Hadron Collider.