Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10726266 | Progress in Particle and Nuclear Physics | 2012 | 6 Pages |
Abstract
In an analysis by Kroll (2011) [11] the form factors for the transitions from a photon to a pseudoscalar meson P=Ï0,η,ηâ²,ηc within QCD are reported. The sharp rise of the Ïγ 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
Authors
P. Kroll,