Generalized parton distributions in a meson cloud model

Details Generalized parton distributions in a meson cloud model Generalized parton distributions in a meson cloud model

2006-07-19

arxiv.org/abs/hep-ph/0607213v1

Nucl.Phys.A782:86-92,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

7 pages, 3 figures; Invited talk at the Fifth International Conference on Perspectives in Hadronic Physics, Miramare - Trieste

Scientific paper

10.1016/j.nuclphysa.2006.10.006

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.

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