Measurement of inclusive production of charmonium states in B meson decays
Abstract
We reconstruct the charmonium mesons J/psi, psi(2S) and chiC1 using a sample of 8.46 x 106 B-anti-B events collected by the BABAR detector operating at e+e- center of mass energies near the Y(4S) resonance. By measuring rates relative to the branching fraction of the J/psi, we obtain preliminary inclusive B branching fractions of (0.25+/-0.02+/-0.02)% to the psi(2S) and (0.39+/-0.04+/-0.04)% to the chiC1, and set a 90% confidence level limit of 0.24% on decays through the chiC2.
0
Turn this paper into a full lesson
ArcXiv compiles a staged curriculum from this paper: 8-12 lessons across beginner → advanced, synthesised section guides, visuals, flashcards, a quiz, exercises, and on-demand deep dives per section. Grounded in the abstract, never invented.