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Hints on the quadrupole deformation of the Δ(1232)

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dc.contributor.authorFernández Ramírez, César
dc.contributor.authorMoya de Guerra, E.
dc.contributor.authorUdías, J. M.
dc.date.accessioned2024-12-09T11:58:42Z
dc.date.available2024-12-09T11:58:42Z
dc.date.issued2006-04-18
dc.descriptionThis is an Accepted Manuscript of an article published by American Physical Society in "Physical Review C 73 (4)", available at: https://doi.org/10.1103/PhysRevC.73.042201
dc.descriptionEste es el manuscrito aceptado del artículo publicado por American Physical Society en "Physical Review C 73 (4)", disponible en línea: https://doi.org/10.1103/PhysRevC.73.042201
dc.description.abstractThe 𝐸⁢2/𝑀⁢1 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.en
dc.description.versionversión final
dc.identifier.citationFernández-Ramírez, C., Guerra, E. M. de ., & Udías, J. M. (2006, April 18). Hints on the quadrupole deformation of the Δ(1232). Physical Review C. American Physical Society. http://doi.org/10.1103/physrevc.73.042201
dc.identifier.doihttps://doi.org/10.1103/PhysRevC.73.042201
dc.identifier.issn2469-9985; 2469-9993
dc.identifier.urihttps://hdl.handle.net/20.500.14468/24757
dc.journal.issue4
dc.journal.titlePhysical Review C
dc.journal.volume73
dc.language.isoen
dc.publisherAmerican Physical Society
dc.relation.centerFacultades y escuelas::Facultad de Ciencias
dc.relation.departmentFísica Interdisciplinar
dc.rightsinfo:eu-repo/semantics/openAccess
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/deed.es
dc.titleHints on the quadrupole deformation of the Δ(1232)en
dc.typeartículoes
dc.typejournal articleen
dspace.entity.typePublication
relation.isAuthorOfPublication66882618-d034-433a-bfcf-670b00bc6adf
relation.isAuthorOfPublication.latestForDiscovery66882618-d034-433a-bfcf-670b00bc6adf
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