Pion form factors
arXiv:1102.5558 · doi:10.1103/PhysRevC.86.015205
Abstract
We consider the electromagnetic and transition pion form factors. Using dispersion relations we simultaneously describe both the hadronic, time-like region and the asymptotic region of large energy-momentum transfer. For the latter we propose a novel mechanism of Regge fermion exchange. We find that hadronic contributions dominate form factors at all currently available energies.
4 pages, 3 figures