Abstract
The thermal multihadron production observed in different high energy interactions poses two basic problems: (1) why do even elementary interactions with comparatively few secondaries (such as e+e− annihilation) lead to thermal hadron abundances, and (2) why is there in such interactions a suppression of strange particle production? We show that the recently proposed mechanism of thermal hadron production through Hawking‐Unruh radiation can naturally account for both. The event horizon of colour confinement leads to thermal behaviour, but the emission temperature depends on the strange quark content of the produced hadrons, causing a deviation from full equilibrium and hence a suppression of strange particle production. We show that the resulting formalism accounts well for multihadron production in e+e− annihilition over a wide energy range, providing a very good description of the observed abundances. It is fully determined in terms of the string tension and the bare strange quark mass, and contains no adjustable parameters.
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