QCD phase transition and primordial density perturbations

Details QCD phase transition and primordial density perturbations QCD phase transition and primordial density perturbations

2000-11-02

arxiv.org/abs/astro-ph/0011036v1

Astronomy and Astrophysics

Astrophysics

9 pages, 1 figure. To appear in the Proceedings of COSMO-2000, 4th International Workshop on Particle Physics and the Early Un

Scientific paper

We analyze the effect of primordial density perturbations on the cosmic QCD phase transition. According to our results hadron bubbles nucleate at the cold perturbations. We call this mechanism inhomogeneous nucleation. We find the typical distance between bubble centers to be a few meters. This exceeds the estimates from homogeneous nucleation by two orders of magnitude. The resulting baryon inhomogeneities may affect primordial nucleosynthesis.

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