Quantization of a six-dimensional Wess-Zumino model

We examine a six-dimensional Wess-Zumino model. The equations of motion are of the fourth order, implying two modes of propagation; a normal bradyonic mode and a tachyonic mode. The conserved fermion current is constructed. The component fields are quantized in such a way that the operator represent...

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Detalles Bibliográficos
Autores: Barci, Daniel Gustavo, Bollini, Carlos Guido, Rocca, Mario Carlos
Tipo de recurso: artículo
Estado:Versión publicada
Fecha de publicación:1995
País:Argentina
Institución:Universidad Nacional de La Plata
Repositorio:SEDICI (UNLP)
Idioma:inglés
OAI Identifier:oai:sedici.unlp.edu.ar:10915/140857
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/140857
Access Level:acceso abierto
Palabra clave:Física
Ciencias Exactas
Wess-Zumino model
motion
supersymmetry transformations
Descripción
Sumario:We examine a six-dimensional Wess-Zumino model. The equations of motion are of the fourth order, implying two modes of propagation; a normal bradyonic mode and a tachyonic mode. The conserved fermion current is constructed. The component fields are quantized in such a way that the operator representing the supercharge is the generator of supersymmetry transformations. The quantization is complemented by the definition of the vacuum for both modes. The evaluation of vacuum expectation values leads to a Feynman propagator for the normal mode and a half-advanced and half-retarded propagator for the tachyon mode. Convolutions between these propagators show consistency with unitarity.