Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2006-10-06
Phys.Rev.D75:032001,2007
Physics
High Energy Physics
High Energy Physics - Experiment
27 pages, 4 figures, 23 tables, Submitted to Phys. Rev. D
Scientific paper
10.1103/PhysRevD.75.032001
We report a measurement of the inclusive electron energy spectrum for charmed semileptonic decays of B mesons in a 140fb-1 data sample collected at the \Upsilon(4S) resonance with the Belle detector at the KEKB asymmetric energy e+ e- collider. We determine the first four moments of the electron energy spectrum for threshold values of the electron energy between 0.4 and 2.0 GeV. In addition, we provide values of the partial branching fraction (zeroth moment) for the same electron threshold energies, and independent measurements of the B+ and B0 partial branching fractions at 0.4 GeV and 0.6 GeV electron threshold energies. We measure the independent B+ and B^0 partial branching fractions with electron threshold energies of 0.4 GeV to be \Delta \mathcal{B} (B+ -> X_c e \nu)=(10.79 +/- 0.25(stat.) +/- 0.27(sys.))% and \Delta \mathcal{B} (B0 -> X_c e \nu)=(10.09 +/- 0.30(stat.) +/- 0.22(sys.))%. Full correlations between all measurements are evaluated.
for the Belle Collaboration
Urquijo Phillip
No associations
LandOfFree
Moments of the electron energy spectrum and partial branching fraction of $B \to X_c e ν$ decays at Belle does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with Moments of the electron energy spectrum and partial branching fraction of $B \to X_c e ν$ decays at Belle, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Moments of the electron energy spectrum and partial branching fraction of $B \to X_c e ν$ decays at Belle will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-634061