Pion form factor in the Kroll-Lee-Zumino model

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dc.creatorDominguez, Cesareo A.
dc.creatorJottar, Juan I.
dc.creatorLoewe, Marcelo
dc.creatorWillers, Bernard
dc.date2007-05-14
dc.date2007-08-14
dc.date.accessioned2026-07-07T10:55:33Z
dc.date.available2026-07-07T10:55:33Z
dc.descriptionThe renormalizable Abelian quantum field theory model of Kroll, Lee, and Zumino is used to compute the one-loop vertex corrections to the tree-level, Vector Meson Dominance (VMD) pion form factor. These corrections, together with the known one-loop vacuum polarization contribution, lead to a substantial improvement over VMD. The resulting pion form factor in the space-like region is in excellent agreement with data in the whole range of accessible momentum transfers. The time-like form factor, known to reproduce the Gounaris-Sakurai formula at and near the rho-meson peak, is unaffected by the vertex correction at order $\cal{O}$$(g_\rpp^2)$.
dc.descriptionRevised version corrects a misprint in Eq.(1)
dc.identifierhttps://arxiv.org/abs/0705.1902
dc.identifierhttp://arxiv.org/abs/0705.1902
dc.identifierPhys.Rev.D76:095002,2007
dc.identifierdoi:10.1103/PhysRevD.76.095002
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/186111
dc.subjectHigh Energy Physics - Phenomenology
dc.subjectNuclear Theory
dc.titlePion form factor in the Kroll-Lee-Zumino model
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