2015/09/10 by V. Bhardwaj, Bhardwaj, V.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex
paper · pdf · doi:10.48550/arxiv.1509.03363
Charm2015 Conference Proceeding
arxiv created 2015/09/10 · arxiv updated 2015/09/14
In spite of the fact that the two-body B decays into χc2 such as B → χc2 K(*) are suppressed by the QCD factorization effect, the inclusive B → χc2 X branching fraction amounts to one third of the non-suppressed B → χc1 X decays because of the decay modes to the multi-body final states. Using a large statistics Υ(4S) data sample corresponding to 772 million B meson pairs accumulated by the Belle detector at the KEKB e+e- collider, precise measurements of inclusive B → χc1 and χc2 branching fractions are carried out. The multi-body final states such as χcJ K π, χcJ K ππ and so on are also investigated to look for new charmonium-like resonance.