Electromagnetic Form Factors of Hadrons in Quantum Field Theories
| dc.creator | Dominguez, C. A. | |
| dc.date | 2008-06-20 | |
| dc.date.accessioned | 2026-07-07T11:51:51Z | |
| dc.date.available | 2026-07-07T11:51:51Z | |
| dc.description | In this talk, recent results are presented of calculations of electromagnetic form factors of hadrons in the framework of two quantum field theories (QFT), (a) Dual-Large $N_c$ QCD (Dual-$QCD_\infty$) for the pion, proton, and $Δ(1236)$, and (b) the Kroll-Lee-Zumino (KLZ) fully renormalizable Abelian QFT for the pion form factor. Both theories provide a QFT platform to improve on naive (tree-level) Vector Meson Dominance (VMD). Dual-$QCD_\infty$ provides a tree-level improvement by incorporating an infinite number of zero-width resonances, which can be subsequently shifted from the real axis to account for the time-like behaviour of the form factors. The renormalizable KLZ model provides a QFT improvement of VMD in the framework of perturbation theory. Due to the relative mildness of the $ρππ$ coupling, and the size of loop suppression factors, the perturbative expansion is well defined in spite of this being a strong coupling theory. Both approaches lead to considerable improvements of VMD predictions for electromagnetic form factors, in excellent agreement with data. | |
| dc.description | Invited talk at the Sixth International Conference on Perspectives in Hadronic Physics, ICTP, Trieste, Italy, May 2008 | |
| dc.identifier | https://arxiv.org/abs/0806.3360 | |
| dc.identifier | http://arxiv.org/abs/0806.3360 | |
| dc.identifier | AIPConf.Proc.1056:23-30,2008 | |
| dc.identifier | doi:10.1063/1.3013047 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/204037 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.subject | Nuclear Theory | |
| dc.title | Electromagnetic Form Factors of Hadrons in Quantum Field Theories | |
| dc.type | text |