Magnetic dipole moment of the $Δ(1232)$ in chiral perturbation theory

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dc.creatorHacker, C.
dc.creatorWies, N.
dc.creatorGegelia, J.
dc.creatorScherer, S.
dc.date2006-03-31
dc.date.accessioned2026-07-07T10:29:53Z
dc.date.available2026-07-07T10:29:53Z
dc.descriptionThe magnetic dipole moment of the $Δ(1232)$ is calculated in the framework of manifestly Lorentz-invariant baryon chiral perturbation theory in combination with the extended on-mass-shell renormalization scheme. As in the case of the nucleon, at leading order both isoscalar and isovector anomalous magnetic moments are given in terms of two low-energy constants. In contrast to the nucleon case, at next-to-leading order the isoscalar anomalous magnetic moment receives a (real) loop contribution. Moreover, due to the unstable nature of the $Δ(1232)$, at next-to-leading order the isovector anomalous magnetic moment not only receives a real but also an imaginary loop contribution.
dc.description9 pages, 2 figures, REVTeX 4
dc.identifierhttps://arxiv.org/abs/hep-ph/0603267
dc.identifierhttp://arxiv.org/abs/hep-ph/0603267
dc.identifierEur.Phys.J.A28:5-9,2006
dc.identifierdoi:10.1140/epja/i2006-10043-7
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/177968
dc.subjectHigh Energy Physics - Phenomenology
dc.titleMagnetic dipole moment of the $Δ(1232)$ in chiral perturbation theory
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