6533b870fe1ef96bd12d0717
RESEARCH PRODUCT
Form factors of radiative pion decays in nonlocal chiral quark models
D. Gómez DummD. Gómez DummNorberto N. ScoccolaNorberto N. ScoccolaSantiago Noguerasubject
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 EXACTASdescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2012-10-01 |