New exact solutions of hydrodynamics for rehadronizing reballs with lattice QCD equation of state

Tamás Csörgő and G. Kasza

Journal of Central European Green Innovation, 2017, vol. 05, issue 2

Abstract: We describe reballs that rehadronize from a perfectly uid quark matter to a chemically frozen, multi-component hadron gas. In the hydrodynamics of these reballs, we utilize the lattice QCD equation of state, however, we also apply non-relativistic kinematics for simplicity and clarity. Two new classes of exact, analytic solutions of reball hydrodynamics are presented: the rst class describes triaxially expanding, non-rotating ellipsoidal reballs, while the second class of exact solutions corresponds to spheroidally symmetric, rotating reballs. In both classes of solutions, we nd evidence for a secondary explosion, that happens just after hadrochemical freeze-out. A realistic, linear mass scaling of the slope parameters of the single particle spectra of various hadronic species is obtained analytically, as well as an also realistic, linear mass scaling of the inverse of the squared HBT radius parameters of the Bose-Einstein correlation functions.

Keywords: Research; and; Development/Tech; Change/Emerging; Technologies (search for similar items in EconPapers)
Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:ags:hukrgr:266739

DOI: 10.22004/ag.econ.266739

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