Pion Form Factor in Chiral Limit of Hard-Wall AdS/QCD Model

Details Pion Form Factor in Chiral Limit of Hard-Wall AdS/QCD Model Pion Form Factor in Chiral Limit of Hard-Wall AdS/QCD Model

2007-09-04

arxiv.org/abs/0709.0500v4

Phys.Rev.D76:115007,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

21 page, 7 figures. Short comparison with NJL predictions for pion radius and new references added. To be published in Phys.Re

Scientific paper

10.1103/PhysRevD.76.115007

We develop a formalism to calculate form factor and charge density distribution of pion in the chiral limit using the holographic dual model of QCD with hard-wall cutoff. We introduce two conjugate pion wave functions and present analytic expressions for these functions and for the pion form factor. They allow to relate such observables as the pion decay constant and the pion charge electric radius to the values of chiral condensate and hard-wall cutoff scale. The evolution of the pion form factor to large values of the momentum transfer is discussed, and results are compared to existing experimental data.

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