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http://hdl.handle.net/10261/15873
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dc.contributor.author | Geng, Li Sheng | - |
dc.contributor.author | Martín Cámalich, Jorge | - |
dc.contributor.author | Vicente Vacas, Manuel J. | - |
dc.date.accessioned | 2009-08-10T11:25:09Z | - |
dc.date.available | 2009-08-10T11:25:09Z | - |
dc.date.issued | 2009-04-24 | - |
dc.identifier.citation | Phys.Lett.B676:63-68,2009 | en_US |
dc.identifier.issn | 0370-2693 | - |
dc.identifier.uri | http://hdl.handle.net/10261/15873 | - |
dc.description.abstract | We extend an earlier study of the baryon magnetic moments in chiral perturbation theory by the explicit inclusion of the spin-3/2 decuplet resonances. We find that the corrections induced by these heavier degrees of freedom are relatively small in a covariant framework where unphysical spin-1/2 modes are removed. Consequently, implementing the leading SU(3)-breaking corrections given by both the baryon and decuplet contributions, we obtain a description of the baryon-octet magnetic moments that is better than the Coleman-Glashow relations. Finally, we discuss the uncertainties and compare between heavy baryon and covariant approaches. (C) 2009 Elsevier B.V. All rights reserved. | en_US |
dc.description.sponsorship | The authors thank J. Gegelia and V. Pascalutsa for useful discussions. This work was partially supported by the MEC grant FIS2006-03438 and the European Community-Research Infrastructure Integrating Activity Study of Strongly Interacting Matter (Hadron-Physics2, Grant Agreement 227431) under the Seventh Framework Programme of EU. L.S.G. acknowledges support from the MICINN in the Program “Juan de la Cierva”. J.M.C. acknowledges the same institution for a FPU grant. | en_US |
dc.format.extent | 202840 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier | en_US |
dc.rights | openAccess | en_US |
dc.title | Leading-order decuplet contributions to the baryon magnetic moments in chiral perturbation theory | en_US |
dc.type | artículo | en_US |
dc.identifier.doi | 10.1016/j.physletb.2009.04.061 | - |
dc.description.peerreviewed | Peer reviewed | en_US |
dc.relation.publisherversion | hhtp://dx.doi.org/10.1016/j.physletb.2009.04.061 | en_US |
dc.type.coar | http://purl.org/coar/resource_type/c_6501 | es_ES |
item.openairetype | artículo | - |
item.grantfulltext | open | - |
item.cerifentitytype | Publications | - |
item.openairecristype | http://purl.org/coar/resource_type/c_18cf | - |
item.fulltext | With Fulltext | - |
item.languageiso639-1 | en | - |
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