Study of the New Meson Decays with Charmonium and Three Light Hadrons in the LHCb Experiment

Abstract

Using proton–proton collision data, collected by the LHCb experiment and corresponding to the integrated luminosity of 9 fb−1, the several new decays to charmonium and three light charged hadrons are observed. In particular, following channels are observed B_c⁺→ ψ(2S)π⁺π⁻π⁺, B_c⁺→ (ψ(2S) → → J/ψπ⁺π⁻)π⁺, B_c⁺→ J/ψK⁺π⁻π⁺, and B_c⁺→ J/ψK⁺K⁻K⁺. The first evidence of the → ψ(2S)K⁺K⁻π⁺ decays is obtained. The branching fractions of these decays are measured with respect to the high-statistic normalization channels.