Hydrodynamics of the cosmological quark-hadron transition

Details Hydrodynamics of the cosmological quark-hadron transition Hydrodynamics of the cosmological quark-hadron transition

Sep 1989

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1989phrvd..40.1789m&link_type=abstract

Physical Review D (Particles and Fields), Volume 40, Issue 6, 15 September 1989, pp.1789-1797

Physics

Fluid Dynamics

36

Particle-Theory And Field-Theory Models Of The Early Universe, Quark-Gluon Plasma, Relativistic Fluid Dynamics

Scientific paper

Hydrodynamic flow in the neighborhood of a phase interface is studied with particular reference to the cosmological quark-hadron transition. Using a characteristic method, we demonstrate that if the interface moves subsonically, the hydrodynamical energy flux across it cannot, as a matter of principle, be calculated from junction conditions alone. Supply of a suitable separate expression for this flux is then an important part of the complete specification of the problem. We show that, contrary to previous suggestions, the amount of energy carried across the interface by neutrinos may well be at least comparable to that carried by the hydrodynamical flow during a significant part of the transition, and we present a revised discussion of the baryon concentration mechanism which may be associated with this.

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