The radiative decay $D^0 \to \bar{K}^{*0} \gamma$ with vector meson dominance

27 Nov 2017  ·  Dias J. M., Debastiani V. R., Xie Ju-Jun, Oset E. ·

Motivated by the experimental measurements of $D^0$ radiative decay modes we have proposed a model to study the $D^0\to \bar{K}^{*0}\gamma$ decay, by establishing a link with $D^0\to \bar{K}^{*0}V$ $(V=\rho^0,\, \omega)$ decays through the vector meson dominance hypothesis. In order to do this properly, we have used the Lagrangians from the local hidden gauge symmetry approach to account for $V\gamma$ conversion... As a result, we have found the branching ratio $\mathcal{B}[D^0\to \bar{K}^{*0}\gamma] =(1.55 - 3.44)\times 10^{-4}$, which is in fair agreement with the experimental values reported by Belle and Babar collaborations. read more

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High Energy Physics - Phenomenology