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

B. Pasquini, M. Pincetti, and S. Boffi
Phys. Rev. D 80, 014017 – Published 27 July 2009

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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  • Received 29 May 2009

DOI:https://doi.org/10.1103/PhysRevD.80.014017

©2009 American Physical Society

Authors & Affiliations

B. Pasquini, M. Pincetti, and S. Boffi

  • Dipartimento di Fisica Nucleare e Teorica, Università degli Studi di Pavia, Pavia, Italy
  • Istituto Nazionale di Fisica Nucleare, Sezione di Pavia, Pavia, Italy

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Issue

Vol. 80, Iss. 1 — 1 July 2009

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