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Título:
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Chiral Lagrangians and the QCD string
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Autores:
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Alfaro, J. ;
Dobado González, Antonio ;
Espriu, D.
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Tipo de documento:
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texto impreso
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Editorial:
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Elsevier Science BV, 1999-08-12
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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
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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We propose a method to derive the low-energy effective action of QCD assuming that the long-distance properties of strong interactions can be described by a string theory. We bypass the usual problems related to the existence of the tachyon and absence of the adequate Adler zero by using a sigma model approach where excitations above the correct (chirally non-invariant) QCD vacuum are included. Two-dimensional conformal invariance then implies the vanishing of the O(p(4)) effective lagrangian coefficients. We interpret this result and discuss ways to go beyond this limit.
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En línea:
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https://eprints.ucm.es/id/eprint/22720/1/DobadoAntonio57.pdf
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