Perturbative pion form factor reexamined

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dc.creatorTung, David
dc.creatorLi, Hsiang-nan
dc.date1997-12-30
dc.date.accessioned2026-07-07T04:03:13Z
dc.date.available2026-07-07T04:03:13Z
dc.descriptionWe recalculate the pion electromagnetic form factor based on the perturbative QCD formalism that includes the Sudakov resummation. We take into account the evolution of the pion wave function in $b$, which represents the transverse extent of the pion. An infrared enhancement is observed when $1/b$ approaches $Λ_{QCD}$. We propose to freeze the evolution of the wave function at some scale above $Λ_{QCD}$, such that perturbative contributions are stablized. Our predictions are consistent with experimental data, and insensitive to the variation of relevant parameters.
dc.description16 pages in Latex file
dc.identifierhttps://arxiv.org/abs/hep-ph/9712541
dc.identifierhttp://arxiv.org/abs/hep-ph/9712541
dc.identifierChin.J.Phys. 35 (1997) 651-662
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/47564
dc.subjectHigh Energy Physics - Phenomenology
dc.titlePerturbative pion form factor reexamined
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