Generalized Parton Distributions and Description of Electromagnetic and Graviton form factors of nucleon

Details Generalized Parton Distributions and Description of Electromagnetic and Graviton form factors of nucleon Generalized Parton Distributions and Description of Electromagnetic and Graviton form factors of nucleon

2009-01-13

arxiv.org/abs/0901.1786v2

Phys.Rev.D79:033003,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 19 figures, typos corrected, 1 fig redrow

Scientific paper

10.1103/PhysRevD.79.033003

The new parameterization of the generalized parton distributions t-dependence is proposed. It allows one to reproduce sufficiently well the electromagnetic form factors of the proton and neutron at small and large momentum transfer. The description of the data obtained by the Rosenbluth method and the polarization method are compared. The results obtained by the latter method are shown to be compatible with the correspondent neutron data. The impact parameter dependence of the neutron charge density is examined. The quark contributions to gravitational form factors of the nucleons are obtained.

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