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arXiv · 1711.09924

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

J. M. Dias·V. R. Debastiani·Ju-Jun Xie·E. Oset
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Abstract

Motivated by the experimental measurements of $D^0$ radiative decay modes we have proposed a model to study the $D^0\to \bar{K}^{*0}γ$ decay, by establishing a link with $D^0\to \bar{K}^{*0}V$ $(V=ρ^0,\, ω)$ 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 $Vγ$ conversion. As a result, we have found the branching ratio $\mathcal{B}[D^0\to \bar{K}^{*0}γ] =(1.55 - 3.44)\times 10^{-4}$, which is in fair agreement with the experimental values reported by Belle and Babar collaborations.

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J. M. Dias, V. R. Debastiani, Ju-Jun Xie, E. Oset. 2017-11-27. The radiative decay $D^0 \to \bar{K}^{*0} γ$ with vector meson dominance. https://doi.org/10.1088/1674-1137%2F42%2F4%2F043106

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