Light-front holographic radiative transition form factors for light mesons

We predict the $\mathcal{V}\to \mathcal{P}\gamma$ decay widths and the $\mathcal{V}\to \mathcal{P}{\gamma }^{\ast }$ transition form factors, where $\mathcal{V}=(\rho ,\omega ,K^{\ast },\varphi )$ and $$\mathcal{P}$= (\pi,K, \eta,\eta^\prime)$, using spin-improved holographic light-front wavefunctions for the mesons. We find excellent agreement with the available data for both the decay widths and the timelike transition form factors extracted from the leptonic conversion decays $\mathcal{V}\to \mathcal{P}{l}^{+}{l}^{-}$.