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Odd-intrinsic-parity processes within the resonance effective theory of QCD

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Odd-intrinsic-parity processes within the resonance effective theory of QCD

dc.contributor.author	Ruiz Femenía, Pedro David
dc.contributor.author	Pich Zardoya, Antonio
dc.contributor.author	Portolés Ibáñez, Jorge
dc.date.accessioned	2015-02-27T08:32:23Z
dc.date.available	2015-02-27T08:32:23Z
dc.date.issued	2003
dc.identifier.uri	http://hdl.handle.net/10550/42479
dc.description.abstract	We analyse the most general odd-intrinsic-parity effective lagrangian of QCD valid for processes involving one pseudoscalar with vector mesons described in terms of antisymmetric tensor fields. Substantial information on the odd-intrinsic-parity couplings is obtained by constructing the vector-vector-pseudoscalar Green's three-point function, at leading order in 1/N-C, and demanding that its short-distance behaviour matches the corresponding OPE result. The QCD constraints thus enforced allow us to predict the decay amplitudes omega --> pigamma and rho --> pigamma, and the O(p(6)) corrections to pi --> gammagamma. Noteworthy consequences concerning the vector meson dominance assumption in the decay omega --> 3pi are also extracted from the previous analysis.
dc.language.iso	eng
dc.relation.ispartof	Journal of High Energy Physics, 2003, vol. 2003, num. 07, p. 003-1-003-18
dc.source	Ruiz Femenía, Pedro David Pich Zardoya, Antonio Portolés Ibáñez, Jorge 2003 Odd-intrinsic-parity processes within the resonance effective theory of QCD Journal of High Energy Physics 2003 07 003-1 003-18
dc.subject	Física
dc.title	Odd-intrinsic-parity processes within the resonance effective theory of QCD
dc.type	journal article	es_ES
dc.date.updated	2015-02-27T08:32:23Z
dc.identifier.doi	http://dx.doi.org/10.1088/1126-6708/2003/07/003
dc.identifier.idgrec	009410
dc.rights.accessRights	open access	es_ES