Hawking-Unruh hadronization and strangeness production in high energy collisions
1 Dipartimento di Fisica ed Astronomia - Universita’ di Catania - Italy
2 INFN - Sezione di Catania - Italy
3 Fakultät für Physik, Universität Bielefeld, Germany
Published online: 22 June 2015
The interpretation of quark (q)- antiquark (q̄) pairs production and the sequential string breaking as tunneling through the event horizon of colour confinement leads to a thermal hadronic spectrum with a universal Unruh temperature, T ≃ 165 Mev, related to the quark acceleration, a, by T = a/2π. The resulting temperature depends on the quark mass and then on the content of the produced hadrons, causing a deviation from full equilibrium and hence a suppression of strange particle production in elementary collisions. In nucleus-nucleus collisions, where the quark density is much bigger, one has to introduce an average temperature (acceleration) which dilutes the quark mass effect and the strangeness suppression almost disappears.
© Owned by the authors, published by EDP Sciences, 2015
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