Pseudoscalar form factors of the $\Delta 1232 $ in Baryon Chiral Perturbation Theory

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Turkish Journal of Physics
Volume:44 Issue:3
Pseudoscalar form factors of the $\Delta 1232 $ in Baryon Chiral Perturbation Theory

Pseudoscalar form factors of the $\Delta 1232 $ in Baryon Chiral Perturbation Theory

Pages : 280-287

View : 22 | Download : 1

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :The pseudoscalar current-delta transition form factors are calculated in the framework of relativistic baryon chiral perturbation theory including order $\mathcal{O} q^4 $. The complex-mass scheme, which is suitable and well-defined for unstable particles, is taken into account as a renormalization scheme. We discuss the low energy behavior of the pseudoscalar $\tilde{g} Q^2 $ and $\tilde{h} Q^2 $ form factors and note that the momentum dependence of the form factors is dominated by the pion pole contributions.
Keywords : Delta resonance, baryon chiral perturbation theory, complex mass scheme

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