Non factorizable Effetcs in $B \to χ_{c0} K^- $ from Charmed Meson Rescattering

Details Non factorizable Effetcs in $B \to χ_{c0} K^- $ from Charmed Meson Rescattering Non factorizable Effetcs in $B \to χ_{c0} K^- $ from Charmed Meson Rescattering

2003-10-10

arxiv.org/abs/hep-ph/0310129v2

ECONF C030614:026,2003

Physics

High Energy Physics

High Energy Physics - Phenomenology

Talk at the International Workshop on QCD: QCD@Work 2003 - Conversano (Italy) 14-18 June 2003 (eConf C030614), 4 pages LaTeX,

Scientific paper

The $B^{-} \to \chi_{c0} K^{-}$ decay which has no visible factorizable amplitude, could be induced by the Cabibbo-allowed, color-favored $B^{-} \to D_{s}D^{*0}$, $B^{-} \to D^{*0}_{s}D^{0}$ and $B \to D_{s}^{*}D^{*}$ via the rescattering of these charmed mesons to $\chi_{co} K^{-}$. In this talk I would like to discuss a recent calculation \cite{Colangelo} of these effects for $B^{-} \to \chi_{c0} K^{-}$ and $B^{-} \to J/\psi K^{-}$ decays. We find that charmed scattering effects seem capable of producing a large $B^{-} \to \chi_{c0} K^{-}$ branching ratio measured by the Babar and Belle Collaboration and make a significant contribution to the $B^{-} \to J/\psi K^{-}$ branching ratios in agreement with experiments.

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