Non-Gibbs Particle Spectra from Thermal Equilibrium

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dc.creatorBiro, T. S.
dc.creatorGyorgyi, G.
dc.creatorJakovac, A.
dc.creatorPurcsel, G.
dc.date2004-09-14
dc.date.accessioned2026-07-07T03:53:26Z
dc.date.available2026-07-07T03:53:26Z
dc.descriptionWe propose that transverse momentum spectra with power-law tails observed in ultrarelativistic heavy ion collisions can be interpreted as originating in a medium in thermal equilibrium. General conditions on the dynamical equations are formulated, leading in equilibrium to various energy distributions of particles. Starting with the linear Fokker-Planck equation we analyze conditions for Boltzmann-Gibbs, Tsallis, or other equilibrium distributions based upon the dependence of fluctuation and dissipation on the energy of the observed subsystem. RHIC neutral pion data definitely exclude Boltzmann-Gibbs distribution over the entire range of observed transverse momenta.
dc.description20 pages in preprint format incl. 3 figures
dc.identifierhttps://arxiv.org/abs/hep-ph/0409157
dc.identifierhttp://arxiv.org/abs/hep-ph/0409157
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/43835
dc.subjectHigh Energy Physics - Phenomenology
dc.titleNon-Gibbs Particle Spectra from Thermal Equilibrium
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