When is it possible to use perturbation technique in field theory ?

dc.creatorTruong, Tran N.
dc.date2000-06-27
dc.date.accessioned2026-07-07T03:41:52Z
dc.date.available2026-07-07T03:41:52Z
dc.descriptionThe vector pion form factor is used as an example to analyze this question. Given the experimental radius of the pion, the crucial question is whether perturbative methods could be used for the effective chiral lagrangian to calculate the pion form factor. Our analysis shows that the pion rms radius is far too large (or the related rho resonance mass is too low) for the perturbation theory to be valid.
dc.description11 pages, Latex, 4 eps figs. Contribution to the proceedings of the workshop "QCD2000" Villefranche-sur-Mer, France, January 2000
dc.identifierhttps://arxiv.org/abs/hep-ph/0006302
dc.identifierhttp://arxiv.org/abs/hep-ph/0006302
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/39728
dc.subjectHigh Energy Physics - Phenomenology
dc.titleWhen is it possible to use perturbation technique in field theory ?
dc.typetext

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