Electromagnetic form factors of the Delta baryon

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dc.creatorAlexandrou, Constantia
dc.creatorKorzec, Tomasz
dc.creatorLeontiou, Theodoros
dc.creatorNegele, John W.
dc.creatorTsapalis, Antonios
dc.date2007-10-15
dc.date.accessioned2026-07-07T11:38:06Z
dc.date.available2026-07-07T11:38:06Z
dc.descriptionWe develop a methodology that enables us to extract accurately the electromagnetic Delta form factors and their momentum dependence. We test our approach in the quenched approximation as a preparation for a study using dynamical fermions. Our calculation of the four form factors covers pion masses between about 410 MeV and 560 MeV on lattices with a size of 2.9 fm and a lattice spacing 0.09 fm. From the form factors we are able to obtain estimates of the magnetic moment and the charge radius of the Delta, which we compare to existing experimental and theoretical results.Our non-zero result for the electric quadrupole form factor signals a deformation of the Delta, pointing to an oblate charge distribution.
dc.identifierhttps://arxiv.org/abs/0710.2744
dc.identifierhttp://arxiv.org/abs/0710.2744
dc.identifierPoSLAT2007:149,2007
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/199442
dc.subjectHigh Energy Physics - Lattice
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titleElectromagnetic form factors of the Delta baryon
dc.typetext

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