Generalized parton distributions in a meson cloud model
arXiv:hep-ph/0607213 · doi:10.1016/j.nuclphysa.2006.10.006
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.
7 pages, 3 figures; Invited talk at the Fifth International Conference on Perspectives in Hadronic Physics, Miramare - Trieste (Italy), 22-26 May 2006
References in corpus (6)
- Generalized Parton Distributions
- Chiral-odd generalized parton distributions in constituent quark models
- Linking generalized parton distributions to constituent quark models
- Helicity-dependent generalized parton distributions in constituent quark models
- Virtual meson cloud of the nucleon and generalized parton distributions
- Nonperturbative versus perturbative effects in generalized parton distributions
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- Quark sea asymmetries of the octet baryons
- Nucleon structure functions and longitudinal spin asymmetries in the chiral quark constituent model
- Generalized parton distributions of sea quarks in the proton from nonlocal chiral effective theory
- Generalized parton distributions of sea quark at zero skewness in the light-cone Model
- Sea Quark Flavor Asymmetry of Hadrons in Statistical Balance Model
- Quark flavor distribution functions for the octet baryons in the chiral quark constituent model
- Electromagnetic and Axial-Vector Form Factors of the Quarks and Nucleon
- Comparisons of electric charge and axial charge meson cloud distributions in the PCQM