Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10725635 | Physics Letters B | 2010 | 6 Pages |
Abstract
We present a combined analysis of the space- and time-like electromagnetic pion form factors in light-cone perturbative QCD with transverse momentum dependence and Sudakov suppression. Including the genuine non-perturbative “soft” QCD and the power suppressed twist-3 corrections to the standard twist-2 perturbative QCD result, the experimental form factor data available at moderate energies/momentum transfers can be explained reasonably well. To this end, the bulk of the existing discrepancy between the space- and time-like experimental data is ostensibly reconciled.
Keywords
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Nuclear and High Energy Physics
Authors
Jiunn-Wei Chen, Hiroaki Kohyama, Kazuaki Ohnishi, Udit Raha, Yue-Long Shen,