Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models

Details Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models

2008-07-22

arxiv.org/abs/0807.3488v1

Phys.Rev.D78:034031,2008

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 5 figures

Scientific paper

10.1103/PhysRevD.78.034031

We present a construction of the pion electromagnetic form factor where the transition from large-Nc Regge vector meson dominance models with infinitely many resonances to perturbative QCD is built in explicitly. The construction is based on an appropriate assignment of residues to the Regge poles, which fulfills the constraints of the parton-hadron duality and perturbative QCD. The model contains a slowly falling off non-perturbative contribution which dominates over the perturbative QCD radiative corrections for the experimentally accessible momenta. The leading order and next-to-leading order calculations show a converging pattern which describes the available data within uncertainties, while the onset of asymptotic QCD takes place at extremely high momenta, Q ~ 10^3-10^4 GeV. The method can be straightforwardly extended to study other form factors where the perturbative QCD result is available.

Affiliated with

Also associated with

No associations

Rating

Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Pion electromagnetic form factor, perturbative QCD, and large-Nc Regge models will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-436300