# Production of the Y(4260) State in B Meson Decay

@article{Albuquerque2015ProductionOT,
title={Production of the Y(4260) State in B Meson Decay},
author={Raphael M. Albuquerque and Marina Nielsen and C. M. Zanetti},
journal={arXiv: High Energy Physics - Phenomenology},
year={2015}
}
• Published 31 January 2015
• Physics
• arXiv: High Energy Physics - Phenomenology
We calculate the branching ratio for the production of the meson $Y(4260)$ in the decay $B^- \to Y(4260)K^-$. We use QCD sum rules approach and we consider the $Y(4260)$ to be a mixture between charmonium and exotic tetraquark, $[\bar{c}\bar{q}][qc]$, states with $J^{PC}=1^{--}$. Using the value of the mixing angle determined previously as: $\theta=(53.0\pm0.5)^\circ$, we get the branching ratio $\mathcal{B}(B\to Y(4260)K)=(1.34\pm0.47)\times10^{-6}$, which allows us to estimate an interval on…

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