Space and time-like electromagnetic pion form factors in light-cone pQCD
Journal
Physics Letters
Journal Volume
B693
Pages
102-107
Date Issued
2009-08
Author(s)
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. © 2010 Elsevier B.V.
SDGs
Type
journal article