Published July 1982
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On the infrared divergences of the CP sup(n-1) models
Description
Some properties of the two-dimensional SU(n) non-linear sigma models, i.e., the CP (sub n-1) models are discussed. They are 1/n expandable and ultraviolet renormalizable. The main result is a proof that the infrared divergences associated with the topological gauge field are cancelled in the case of Green functions of gauge invariant operators. (Author)
Availability note (English)
MF available from INIS under the Report Number.Abstract (Portuguese)
Apresenta-se algumas propriedades dos modelos sigma nao lineares bidimensionais com simetria SU(n), ou seja, os modelos CP(sub n-1). Eles sao expansiveis em serie de potencias de 1/n e renormalizaveis na regiao ultravioleta. O aspecto mais importante esta, porem, na demonstracao de que as divergencias infravermelhas associadas ao campo de gauge topologico se cancelam no caso de funcoes de Green de operadores invariantes de gauge. (Autor)Files
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Additional details
Publishing Information
- Imprint Pagination
- 18 p.
- Report number
- IFUSP-P--348
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 15003713
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- FEYNMAN METHOD; GAUGE INVARIANCE; GREEN FUNCTION; INFRARED DIVERGENCES; SIGMA MODEL; ULTRAVIOLET DIVERGENCES
- Descriptors DEC
- BOSON-EXCHANGE MODELS; FUNCTIONS; INVARIANCE PRINCIPLES; MATHEMATICAL MODELS; PARTICLE MODELS; PERIPHERAL MODELS