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Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory

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Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory

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dc.contributor.author Geng, Li Sheng
dc.contributor.author Martín Camalich, Jorge
dc.contributor.author Vicente Vacas, Manuel José
dc.date.accessioned 2014-10-29T12:38:31Z
dc.date.available 2014-10-29T12:38:31Z
dc.date.issued 2009
dc.identifier.citation Geng, Li Sheng Martín Camalich, Jorge Vicente Vacas, Manuel José 2009 Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory Physical Review D 80 3 034027
dc.identifier.uri http://hdl.handle.net/10550/39495
dc.description.abstract We present a calculation of the leading SU(3)-breaking O(p(3)) corrections to the electromagnetic moments and charge radius of the lowest-lying decuplet resonances in covariant chiral perturbation theory. In particular, the magnetic dipole moment of the members of the decuplet is predicted fixing the only low-energy constant (LEC) present up to this order with the well-measured magnetic dipole moment of the Omega(-). We predict mu(++)(Delta) = 6.04(13) and mu(+)(Delta) = 2.84(2), which agree well with the current experimental information. For the electric quadrupole moment and the charge radius, we use state-of-the-art lattice QCD results to determine the corresponding LECs, whereas for the magnetic octupole moment there is no unknown LEC up to the order considered here, and we obtain a pure prediction. We compare our results with those reported in large N-c, lattice QCD, heavy-baryon chiral perturbation theory, and other models.
dc.language.iso eng
dc.relation.ispartof Physical Review D, 2009, vol. 80, num. 3, p. 034027
dc.subject Física
dc.title Electromagnetic structure of the lowest-lying decuplet resonances in covariant chiral perturbation theory
dc.type journal article es_ES
dc.date.updated 2014-10-29T12:38:31Z
dc.identifier.doi 10.1103/PhysRevD.80.034027
dc.identifier.idgrec 079946
dc.rights.accessRights open access es_ES

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