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dc.contributor.authorFernández-Ramírez, César-
dc.contributor.authorMoya de Guerra, Elvira-
dc.contributor.authorUdías, J. M.-
dc.date.accessioned2017-01-17T08:32:46Z-
dc.date.available2017-01-17T08:32:46Z-
dc.date.issued2006-04-18-
dc.identifierdoi: 10.1103/PhysRevC.73.042201-
dc.identifierissn: 0556-2813-
dc.identifier.citationPhysical Review C - Nuclear Physics 73: 042201(R) (2006)-
dc.identifier.urihttp://hdl.handle.net/10261/142571-
dc.description5 págs.; 3 figs.; 2 tabs. ; PACS number(s): 14.20.Gk, 14.20.Dh, 25.20.Lj, 13.60.Le ; Rapid Communications-
dc.description.abstractThe E2/M1 ratio (EMR) of the Δ(1232) is extracted from the world data in pion photoproduction by means of an effective Lagrangian approach (ELA). This quantity has been derived within a crossing symmetric, gauge invariant, and chiral symmetric Lagrangian model which also contains a consistent modern treatment of the Δ(1232) resonance. The bare s-channel Δ(1232) contribution is well isolated and final state interactions (FSI) are effectively taken into account fulfilling Watson's theorem. The obtained EMR value, EMR =(-1.30±0.52)%, is in good agreement with the latest lattice QCD calculations [Phys. Rev. Lett. 94, 021601 (2005)] and disagrees with results of current quark model calculations. © 2006 The American Physical Society.-
dc.description.sponsorshipC.F.-R.work is being developed under Spanish Government grant UAC2002-0009. This work has been supported in part under contracts of Ministerio de Educación y Ciencia (Spain) BFM2002-03562, BFM2003-04147-C02-01, and FIS2005- 00640.-
dc.publisherAmerican Physical Society-
dc.relation.isversionofPublisher's version-
dc.rightsopenAccess-
dc.titleHints on the quadrupole deformation of the Δ(1232)-
dc.typeartículo-
dc.identifier.doihttp://dx.doi.org/10.1103/PhysRevC.73.042201-
dc.relation.publisherversionhttps://doi.org/10.1103/PhysRevC.73.042201-
dc.date.updated2017-01-17T08:32:48Z-
dc.description.versionPeer Reviewed-
dc.language.rfc3066eng-
dc.contributor.funderMinisterio de Educación y Ciencia (España)-
dc.relation.csic-
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