Baryon Number Diffusion and Instabilities in the Quark/Hadron Phase Transition

1992/09/11 by Fred C. Adams, Katherine Freese, Adams, Fred C. +3
Mathematics · Physics and Astronomy · #Cosmology and Gravitation Theories #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Stochastic processes and statistical mechanics #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9209229

8 pages, UM AC 92-8

arxiv created 1992/09/11 · openalex publication_date 1992/09/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

Hadron bubbles that nucleate with radius R_nuc in a quark sea (if the phase transition is first order) are shown to be unstable to the growth of nonspherical structure when the bubble radii exceed a critical size of 20 - 10³ R_nuc. This instability is driven by a very thin layer of slowly diffusing excess baryon number that forms on the surface of the bubble wall and limits its growth. This instability occurs on a shorter length scale than those studied previously and these effects can thus be important for both cosmology and heavy ion collisions.

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