Measurements of |Vub| at Belle

Details Measurements of |Vub| at Belle Measurements of |Vub| at Belle

2003-06-06

arxiv.org/abs/hep-ex/0306020v1

Physics

High Energy Physics

High Energy Physics - Experiment

8 pages, 5 figures, talk at the XXXVIIIth Recontres de Moriond;EW and UT

Scientific paper

We have tried to measure $|V_{ub}|$ using inclusive semileptonic decay measurements with three different methods. The full reconstruction tag is the one of the most feasible method to measure inclusive process. Semileptonic $B\to D^{(*)}\ell\nu$ tag is another method to separate signal and tag $B$ mesons. New kinematic variable is used to enhance double semileptonic decays of both $B$ meson. We also improve the neutrino reconstruction technique solving a combination of decay products into signal and tag $B$ mesons using the simulated annealing method.

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