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Large-N-c naturalness in coupled-channel meson-meson scattering

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Large-N-c naturalness in coupled-channel meson-meson scattering

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dc.contributor.author	Ledwig, T.
dc.contributor.author	Nieves Pamplona, Juan Miguel
dc.contributor.author	Pich Zardoya, Antonio
dc.contributor.author	Ruiz Arriola, Enrique
dc.contributor.author	Ruiz de Elvira, Jacobo
dc.date.accessioned	2016-04-21T11:35:09Z
dc.date.available	2016-04-21T11:35:09Z
dc.date.issued	2014
dc.identifier.citation	Ledwig, T. Nieves Pamplona, Juan Miguel Pich Zardoya, Antonio Ruiz Arriola, Enrique Ruiz de Elvira, Jacobo 2014 Large-N-c naturalness in coupled-channel meson-meson scattering Physical Review D 90 11 114020
dc.identifier.uri	http://hdl.handle.net/10550/52964
dc.description.abstract	The analysis of hadronic interactions with effective field theory techniques is complicated by the appearance of a large number of low-energy constants, which are usually fitted to data. On the other hand, the large-Nc limit helps to impose natural short-distance constraints on these low-energy constants, providing a parameter reduction. A Bayesian interpretation of the expected 1/Nc accuracy allows for an easy and efficient implementation of these constraints, using an augmented χ2. We apply this approach to the analysis of meson-meson scattering, in conjunction with chiral perturbation theory to one loop and coupled-channel unitarity, and show that it helps to largely reduce the many existing ambiguities and simultaneously provide an acceptable description of the available phase shifts.
dc.language.iso	eng
dc.relation.ispartof	Physical Review D, 2014, vol. 90, num. 11, p. 114020
dc.subject	Física
dc.title	Large-N-c naturalness in coupled-channel meson-meson scattering
dc.type	journal article	es_ES
dc.date.updated	2016-04-21T11:35:09Z
dc.identifier.doi	10.1103/PhysRevD.90.114020
dc.identifier.idgrec	101769
dc.rights.accessRights	open access	es_ES