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arXiv · hep-ph/9608252

Pion Helicity Structure And Its Consequence For The Hard Scattering Form Factor

Siwen Wang·Leonard S. Kisslinger
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Abstract

In a study of the elastic pion form factor for large momentum transfers based on a modified perturbative QCD (PQCD) approach we have included helicity components that are customarily neglected. Along with the inclusion of transverse momentum, this gives a large suppression of the form factor from the prediction of the original hard scattering model based on PQCD in the $Q^{2}$ domain where experimental data are available. We conclude that nonperturbative contributions will dominate in this region.

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Siwen Wang, Leonard S. Kisslinger. 1996-08-07. Pion Helicity Structure And Its Consequence For The Hard Scattering Form Factor. https://doi.org/10.1103/physrevd.54.5890

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