Effective field theory description of the pion form factor
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Using our present knowledge on effective hadronic theories, short-distance QCD information, the 1/N-C expansion, analyticity and unitarity, we derive an expression for the pion form factor, in terms of m(pi), m(kappa), M-rho and f(pi). This parameter-free prediction provides a surprisingly good description of the experimental data up to energies of the order of 1 GeV.
Guerrero Cortina, Francisco Pich Zardoya, Antonio 1997 Effective field theory description of the pion form factor Physics Letters B 412 3-4 382 388