Measurements of the branching fractions of [Formula: see text] decays

Eur Phys J C Part Fields. 2013;73(6):2462. doi: 10.1140/epjc/s10052-013-2462-2. Epub 2013 Jun 13.

Abstract

The branching fractions of the decay [Formula: see text] for different intermediate states are measured using data, corresponding to an integrated luminosity of 1.0 fb-1, collected by the LHCb experiment. The total branching fraction, its charmless component [Formula: see text] and the branching fractions via the resonant [Formula: see text] states ηc (1S) and ψ(2S) relative to the decay via a J/ψ intermediate state are [Formula: see text] Upper limits on the B+ branching fractions into the ηc (2S) meson and into the charmonium-like states X(3872) and X(3915) are also obtained.