Thermal Hadronization, Hawking-Unruh Radiation and Event Horizon in QCD

Details Thermal Hadronization, Hawking-Unruh Radiation and Event Horizon in QCD Thermal Hadronization, Hawking-Unruh Radiation and Event Horizon in QCD

2007-11-23

arxiv.org/abs/0711.3712v1

Proceedings of the International Symposium on Exotic States of Nuclear Matter, Catania, Italy, June 2007, World Scientific,

Physics

High Energy Physics

High Energy Physics - Phenomenology

Invited talk, 8 pages, 6 figures

Scientific paper

Because of colour confinement, the physical vacuum forms an event horizon for quarks and gluons; this can be crossed only by quantum tunneling, i.e., through the QCD counterpart of Hawking radiation by black holes. Since such radiation cannot transmit information to the outside, it must be thermal, of a temperature determined by the strong force at the confinement surface, and it must maintain colour neutrality. The resulting process provides a common mechanism for thermal hadron production in high energy interactions, from $e^+e^-$ annihilation to heavy ion collisions. The analogy with black-hole event horizon suggests a dependence of the hadronization temperature on the baryon density.

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