The nucleon to Delta electromagnetic transition form factors in lattice QCD

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dc.creatorAlexandrou, C.
dc.creatorKoutsou, G.
dc.creatorNeff, H.
dc.creatorNegele, J. W.
dc.creatorSchroers, W.
dc.creatorTsapalis, A.
dc.date2007-10-25
dc.date.accessioned2026-07-07T11:12:36Z
dc.date.available2026-07-07T11:12:36Z
dc.descriptionThe electromagnetic nucleon to Delta transition form factors are evaluated using two degenerate flavors of dynamical Wilson fermions and using dynamical sea staggered fermions with domain wall valence quarks. The two subdominant quadrupole form factors are evaluated for the first time in full QCD to sufficient accuracy to exclude a zero value, which is taken as a signal for deformation in the nucleon-Delta system. For the Coulomb quadrupole form factor the unquenched results show deviations from the quenched results at low q^2 bringing dynamical lattice results closer to experiment, thereby confirming the importance of pion cloud contributions on this quantity.
dc.description15 pages, 8 Figures
dc.identifierhttps://arxiv.org/abs/0710.4621
dc.identifierhttp://arxiv.org/abs/0710.4621
dc.identifierPhys.Rev.D77:085012,2008
dc.identifierdoi:10.1103/PhysRevD.77.085012
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/191432
dc.subjectHigh Energy Physics - Lattice
dc.titleThe nucleon to Delta electromagnetic transition form factors in lattice QCD
dc.typetext

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