Parton content of the nucleon from distribution amplitudes and transition distribution amplitudes
High Energy Physics - Phenomenology
2010-05-28 v2
Abstract
The nucleon distribution amplitudes and the nucleon-to-pion transition distribution amplitudes are investigated at leading twist within the frame of a light-cone quark model. The distribution amplitudes probe the three-quark component of the nucleon light-cone wave function, while higher order components in the Fock-space expansion of the nucleon state are essential to describe the nucleon-to-pion transition distribution amplitudes. Adopting a meson-cloud model of the nucleon the nucleon-to-pion transition distribution amplitudes are calculated for the first time.
Keywords
Cite
@article{arxiv.0905.4018,
title = {Parton content of the nucleon from distribution amplitudes and transition distribution amplitudes},
author = {B. Pasquini and M. Pincetti and S. Boffi},
journal= {arXiv preprint arXiv:0905.4018},
year = {2010}
}
Comments
comments and references added; version to appear in Phys. Rev. D