Publication Date:
2007
abstract:
We present a model calculation of the generalized parton distributions where the nucleon is described by a quark core surrounded by a mesonic cloud. In the one-meson approximation, we expand the Fock state of the physical nucleon in a series involving a bare nucleon and two-particle, meson-baryon, states. We discuss the role of the different Fock-state components of the nucleon by deriving a convolution formalism for the unpolarized generalized parton distributions, and showing predictions at different kinematics.
Iris type:
4.1 Contributo in Atti di convegno
Keywords:
generalizaed parton distribution; light-cone wavefunctions; meson cloud model of the nucleon
List of contributors:
Pasquini, Barbara; Boffi, Sigfrido
Book title:
Nuclear Physics A
Published in: