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arXiv · 0905.4018

Parton content of the nucleon from distribution amplitudes and transition distribution amplitudes

B. Pasquini·M. Pincetti·S. Boffi
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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.

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B. Pasquini, M. Pincetti, S. Boffi. 2009-05-25. Parton content of the nucleon from distribution amplitudes and transition distribution amplitudes. https://doi.org/10.1103/physrevd.80.014017

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