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Título:
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Quark Schwinger-Dyson evaluation of the l(1),l(2) coefficients in the chiral Lagrangian
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Autores:
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Llanes Estrada, Felipe José ;
Bicudo, PD
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Tipo de documento:
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texto impreso
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Editorial:
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American Physical Soc, 2003
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Dimensiones:
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application/pdf
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Nota general:
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info:eu-repo/semantics/openAccess
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Idiomas:
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Palabras clave:
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Estado = Publicado
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Materia = Ciencias: Física
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Tipo = Artículo
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Resumen:
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Using a systematic expansion of the quark-antiquark Bethe Salpeter wave functions in the relativistic quark model and working to O(P-4) in the chiral limit, we are able to derive theoretical expressions relating the coefficients of the chiral Lagrangian l(1),l(2) to the underlying quark-antiquark wave functions and interaction kernels. This is accomplished by using a novel technique based on a Ward identity for the quark-antiquark ladder kernel which greatly simplifies the required effort. Numerical evaluations are performed in two simple specific models.
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En línea:
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https://eprints.ucm.es/id/eprint/23372/1/Llanes-Estrada_FJ61libre.pdf
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