Electromagnetic Transition Form Factors of Light Mesons

Details Electromagnetic Transition Form Factors of Light Mesons Electromagnetic Transition Form Factors of Light Mesons

2002-01-08

arxiv.org/abs/nucl-th/0201017v1

Phys.Rev. C65 (2002) 045211

Physics

Nuclear Physics

Nuclear Theory

Submitted for publication; 13x2-column pages, REVTEX 4, 8 .eps files making 6figs

Scientific paper

10.1103/PhysRevC.65.045211

We study selected meson transition processes and associated form factors within a model of QCD based on the Dyson--Schwinger equations truncated to ladder-rainbow level. The infrared structure of the ladder-rainbow kernel is described by two parameters; the ultraviolet behavior is fixed by the one-loop renormalization group behavior of QCD. The work is restricted to the u and d quark sector and allows a Poincare'-covariant study of the radiative decays: rho -> pi + gamma, omega -> pi + gamma, and pi^0 -> gamma + gamma. Particular attention is paid to the form factors for the associated transitions: gamma^* + pi^0 -> gamma, gamma^* + pi^0 -> gamma^*, gamma^* + pi -> rho and gamma^* + rho -> pi. The latter two processes are of interest as contributors to meson electroproduction from hadronic targets away from the s-channel resonance region. We use the present QCD model to explore limitations to the assumption that coupling to a t-channel virtual qbar-q correlation can be modeled as meson exchange.

Affiliated with

Also associated with

No associations

Rating

Electromagnetic Transition Form Factors of Light Mesons 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 Electromagnetic Transition Form Factors of Light Mesons, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electromagnetic Transition Form Factors of Light Mesons will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-321869