Search results for "Radiative pion decay"

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Form factors of radiative pion decays in nonlocal chiral quark models

2012

We study the radiative pion decay π +→e +ν eγ 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(q2) and the slope of the axial-vector form factor F A(q2) 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 δ 5 and δ 6, comparing our results with the values obtained in chiral perturbation theory.

QuarkNuclear and High Energy PhysicsWave function renormalizationParticle physicsChiral perturbation theoryradiative pion decayHigh Energy Physics::LatticeCiencias FísicasFOS: Physical sciences01 natural sciencesPion form factorPartícules (Física nuclear)Momentum//purl.org/becyt/ford/1 [https]pion form factorLow energyPionHigh Energy Physics - Phenomenology (hep-ph)0103 physical sciencesRadiative transfer010306 general physicsPhysics010308 nuclear & particles physicsHigh Energy Physics::PhenomenologyForm factor (quantum field theory)Física//purl.org/becyt/ford/1.3 [https]AstronomíaHigh Energy Physics - PhenomenologyRadiative pion decayFísica nuclearCIENCIAS NATURALES Y EXACTAS
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