Article ID Journal Published Year Pages File Type
10726266 Progress in Particle and Nuclear Physics 2012 6 Pages PDF
Abstract
In an analysis by Kroll (2011) [11] the form factors for the transitions from a photon to a pseudoscalar meson P=π0,η,η′,ηc within QCD are reported. The sharp rise of the πγ form factor with the photon virtuality demands strong power corrections to the results from collinear factorization in contrast to the other transition form factors. The power corrections are modeled as quark transverse momenta accompanied by gluon radiation.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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