Baryon Density in the Central Region of a Heavy-Ion Collision

1997/06/11 by A. Gill, Alasdair James Gill, Gill, Alasdair James
Engineering · Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #High-Energy Particle Collisions Research #Quantum, superfluid, helium dynamics #Superconducting Materials and Applications #hep-ph

paper · pdf · doi:10.48550/arxiv.hep-ph/9706327

10 pages, 4 figures

arxiv created 1997/06/11 · openalex publication_date 1997/06/11 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

The O(4) linear sigma model of the chiral transition in QCD is similar to models of the superfluid transition in 4He and 3He. Observations of vortex formation in superfluid helium have recently improved the understanding of the dynamics of such transitions. This is exploited to estimate the baryon density in the central region of a heavy ion region and the result is consistent with the long held belief that this density is very small in comparison with the pion density.

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