✦ LIBER ✦

Generalization of the Breit-Wigner Formula to Nonzero Temperature and Density

✍ Scribed by H.A. Weldon

Book ID: 102565057
Publisher: Elsevier Science
Year: 1993
Tongue: English
Weight: 266 KB
Volume: 228
Category: Article
ISSN: 0003-4916
DOI: 10.1006/aphy.1993.1087

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✦ Synopsis

A formula is derived for the production rate of unstable particles that are produced in a thermalized region but whose decay products interact so weakly that they escape without thermalizing. The Bose-Einstein or Fermi-Dirac distribution is found to apply to unstable particles but modified by a Breit-Wigner distribution in the invariant mass. "c 1993 Academic Press. Inc.

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