✦ LIBER ✦
Field Operator for Unstable Particle and Complex Mass Description in Local QFT
✍ Scribed by J. Lukierski
- Publisher
- John Wiley and Sons
- Year
- 1980
- Tongue
- English
- Weight
- 423 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0015-8208
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✦ Synopsis
Abstract
We consider the equations describing the local covariant unstable particle field operator as the functional of stable asymptotic decay products. In such a framework, we present two generalizations of the Yang‐Feldman equation, which can be used for the description of unstable particles. In order to introduce a complex mass parameter, we discuss the generalizations of mass renormalization procedure. Also we consider briefly the description using fields with continuous spectrum of asymptotic masses.