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arXiv · hep-ph/0404172

The topological approach to baryon-antibaryon and meson production in rapidly expanding Bjorken rods

G. Holzwarth
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Abstract

The topological approach to baryon-antibaryon production in the chiral phase transition is numerically simulated for rapidly expanding hadronic systems. For that purpose the dynamics of the effective chiral field is implemented on a space - rapidity lattice. The essential features of evolutions from initial 'hot' configurations into final ensembles of (anti-)baryons embedded in the chiral condensate are studied in proper time of comoving frames. Typical times for onset and completion of the roll-down and exponents for the growth of correlations are extracted. Meson and baryon-antibaryon yields are estimated. For standard assumptions about initial coherence lengths they are compatible with experimental results.

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G. Holzwarth. 2004-04-21. The topological approach to baryon-antibaryon and meson production in rapidly expanding Bjorken rods. https://doi.org/10.1103/physrevd.70.036001

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