English

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

High Energy Physics - Phenomenology 2018-05-11 v1

Abstract

Motivated by the experimental measurements of D0D^0 radiative decay modes we have proposed a model to study the D0Kˉ0γD^0\to \bar{K}^{*0}\gamma decay, by establishing a link with D0Kˉ0VD^0\to \bar{K}^{*0}V (V=ρ0,ω)(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 VγV\gamma conversion. As a result, we have found the branching ratio B[D0Kˉ0γ]=(1.553.44)×104\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.

Keywords

Cite

@article{arxiv.1711.09924,
  title  = {The radiative decay $D^0 \to \bar{K}^{*0} \gamma$ with vector meson dominance},
  author = {J. M. Dias and V. R. Debastiani and Ju-Jun Xie and E. Oset},
  journal= {arXiv preprint arXiv:1711.09924},
  year   = {2018}
}

Comments

14 pages and 3 figures