Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2012-04-03
Physics
High Energy Physics
High Energy Physics - Phenomenology
32 pages, 7 figures
Scientific paper
Relating the forward light-by-light scattering to energy weighted integrals of the \gamma* \gamma -fusion cross sections, with one real photon (\gamma) and one virtual photon (\gamma*), we find two new exact super-convergence relations. They complement the known super-convergence relation based on the extension of the GDH sum rule to the light-light system. We also find a set of sum rules for the low-energy photon-photon interaction. All of the new relations are verified here exactly at leading order in scalar and spinor QED. The super-convergence relations, applied to the \gamma* \gamma -production of mesons, lead to intricate relations between the \gamma \gamma -decay widths or the \gamma* \gamma -transition form factors for (pseudo-) scalar, axial-vector and tensor mesons. We discuss the phenomenological implications of these results for mesons in both the light-quark sector and the charm-quark sector.
Pascalutsa Vladimir
Pauk Vladyslav
Vanderhaeghen Marc
No associations
LandOfFree
Light-by-light scattering sum rules constraining meson transition form factors has received 1 rating(s) and 1 review(s), resulting in an average rating of 5.00 on a scale from 1 to 5. The overall rating for this scientific paper is superior.
If you have personal experience with Light-by-light scattering sum rules constraining meson transition form factors, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light-by-light scattering sum rules constraining meson transition form factors will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-355494