Measurement of the decay and determination of
Dec, 20108 pages
Published in:
- Phys.Rev.D 83 (2011) 071101
e-Print:
- 1012.0090 [hep-ex]
Report number:
- BELLE-PREPRINT-2010-22,
- KEK-PREPRINT-2010-37
Experiments:
Citations per year
Abstract: (arXiv)
We present a measurement of the charmless semileptonic decay using a data sample containing 657 events collected with the Belle detector at the KEKB asymmetric-energy collider operating near the resonance. We determine the total branching fraction of the decay, . We also report a new precise measurement of the differential decay rate, and extract the Cabibbo-Kobayashi-Maskawa matrix element using model-independent and -dependent approaches. From a simultaneous fit to the measured differential decay rate and lattice QCD results, we obtain , where the error includes both statistical and systematic uncertainties.Note:
- 8 pages, 3 figures, Submitted to PRD(RC)
- 12.15.Hh
- 12.38.Qk
- 13.20.He
- B0: decay rate
- B0: semileptonic decay
- lattice field theory
- Upsilon(10570)
- CKM matrix
- BELLE
- KEK-B
References(36)
Figures(7)