A search for ${\Xi }_{cc}^{++}\to D^{+}p{K}^{-}{\pi }^{+}$ decays

Abstract

A search for the ${\Xi }_{cc}^{++}$ baryon through the ${\Xi }_{cc}^{++}\to D^{+}p{K}^{-}{\pi }^{+}$ decay is performed with a data sample corresponding to an integrated luminosity of 1.7 ${\mathrm{fb}}^{-1}$ recorded by the LHCb experiment in $pp$ collisions at a centre-of-mass energy of 13 TeV. No significant signal is observed in the mass range from the kinematic threshold of the decay to 3800 $\mathrm{MeV}/c^2$. An upper limit is set on the ratio of branching fractions $\mathcal{R}=\frac{\mathcal{B}({\Xi }_{cc}^{++}\to D^{+}p{K}^{-}{\pi }^{+})}{\mathcal{B}({\Xi }_{cc}^{++}\to {\Lambda }_c^{+}{K}^{-}{\pi }^{+}{\pi }^{+})}$ with $\mathcal{R}<1.7(2.1)\times 10^{-2}$ at the 90% (95%) confidence level at the known mass of the ${\Xi }_{cc}^{++}$ state.

arXiv commentAll figures and tables, along with any supplementary material and additional information, are available at https://cern.ch/lhcbproject/Publications/p/LHCb-PAPER-2019-011.html

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