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Gómez Dumm, Daniel; Noguera Puchol, Santiago; Scoccola, N.N. | |||
Aquest document és un/a article, creat/da en: 2012 | |||
Este documento está disponible también en : 10.1103/PhysRevD.86.074020 |
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We study the radiative pion decay pi(+) -> e(+) nu(e)gamma within nonlocal chiral quark models that include wave function renormalization. In this framework we analyze the momentum dependence of the vector form factor F-V(q(2)) and the slope of the axial-vector form factor F-A(q(2)) at threshold. Our results are compared with available experimental information and with the predictions given by the Nambu-Jona-Lasinio model. In addition we calculate the low energy constants l(5) and l(6), comparing our results with the values obtained in chiral perturbation theory. | |||
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