The origin of thermal hadron production

Journal Article · Fri Aug 29 04:00:00 EDT 2008 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2987175· OSTI ID:21152395

Satz, H ^[1]

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1. Fakultaet fuer Physik, Universitaet Bielefeld, Universitaetsstrasse 25, D-33615 Bielefeld (Germany)

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{sup +}e{sup -} 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{sup +}e{sup -} annihilation 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.

• OSTI ID: 21152395
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 1038; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
COLOR MODEL
ELECTRON-POSITRON INTERACTIONS
MULTIPLE PRODUCTION
QUANTUM CHROMODYNAMICS
RESONANCE PARTICLES
REST MASS
S QUARKS