Measurement of Inclusive B --> psi Production
Abstract
Using the combined CLEO II and CLEO II.V data sets of 9.1 fb^{-1} at the Upsilon(4S), we measure properties of Psi mesons produced directly from decays of the B meson, where ``B'' denotes an admixture of B+, B-, B0, and B0bar, and ``Psi'' denotes either J/Psi or Psi(2S). We report first measurements of Psi polarization in B -> Psi(direct) X: alpha(J/Psi) = -0.30 {+0.07 -0.06 stat} {+-0.04 syst} and alpha(Psi(2S)) = -0.45 {+0.22 -0.19 stat} {+-0.04 syst}. We also report improved measurements of the momentum distributions of Psi produced directly from B decays, correcting for measurement smearing. Finally, we report measurements of the inclusive branching fraction for B -> Psi X and B -> Chi_c1 X.
Cite
@article{arxiv.hep-ex/0207059,
title = {Measurement of Inclusive B --> psi Production},
author = {S. Anderson},
journal= {arXiv preprint arXiv:hep-ex/0207059},
year = {2009}
}
Comments
8 pages postscript, also available through http://w4.lns.cornell.edu/public/CLNS, submitted to PRL