Space-like and time-like pion-rho transition form factors in the light-cone formalism - High Energy Physics - PhenomenologyReport as inadecuate




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Abstract: Having calculated the light-cone wave function of the pseudoscalar meson byusing two equivalent and fully covariant methods, we generalize such methods tothe valence Fock states of the vector meson in the light-cone formalism. Weinvestigate the decay constant of the $ ho$ meson $f { ho}$, the$\gamma^{\ast} \pi \to ho $ and $\gamma^* ho \to \pi $ transition formfactors and especially the transition magnetic moments. By using two groups ofconstraint parameters, we predict the space-like and time-like form factors$F {\pi ho}Q^2$ and $F { ho \pi}Q^2$ at low and moderate energy scaleand the electromagnetic radius of these transition processes. In addition, weextend our calculation to $\gamma^* \pi \to \omega$ space-like and time-likeform factors by using the same sets of parameters.



Author: Jianghao Yu, Bo-Wen Xiao, Bo-Qiang Ma

Source: https://arxiv.org/







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