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03 November 2024
 
  » arxiv » astro-ph/9307031

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The Quark-Hadron Phase Transition, QCD Lattice Calculations and Inhomogeneous Big-Bang Nucleosynthesis
A.A. Coley ; T. Trappenberg ;
Date 22 Jul 1993
Journal Phys.Rev. D50 (1994) 4881-4885
Subject astro-ph hep-lat
AbstractWe review recent lattice QCD results for the surface tension at the finite temperature quark-hadron phase transition and discuss their implications on the possible scale of inhomogeneities. In the quenched approximation the average distance between nucleating centers is smaller than the diffusion length of a protron, so that inhomogeneities are washed out by the time nucleosynthesis sets in. Consequently the baryon density fluctuations formed by a QCD phase transition in the early universe cannot significantly affect standard big-bang nucleosynthesis calculations and certainly cannot allow baryons to close the universe. At present lattice results are inconclusive when dynamical fermions are included.
Source arXiv, astro-ph/9307031
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