Form factors of radiative pion decays in nonlocal chiral quark models
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Form factors of radiative pion decays in nonlocal chiral quark models

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Form factors of radiative pion decays in nonlocal chiral quark models

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Gómez Dumm, Daniel; Noguera Puchol, Santiago Perfil; Scoccola, N.N.
Aquest document és un/a article, creat/da en: 2012

Este documento está disponible también en : http://dx.doi.org/10.1103/PhysRevD.86.074020
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.

    Gomez Dumm, D. Noguera Puchol, Santiago Scoccola, N.N. 2012 Form factors of radiative pion decays in nonlocal chiral quark models Physical Review D 86 7 074020
http://dx.doi.org/10.1103/PhysRevD.86.074020
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