Measurement of the $$\bar{B}$$0 → D*+ℓ-$$\bar{v}$$ Branching Fraction with a Partial Reconstruction Technique
- Univ. of Mississippi, Oxford, MS (United States)
Presented is a precise measurement of the $$\bar{B}$$0 → D*+ℓ-$$\bar{v}$$ℓ branching fraction using 81.47 fb-1 of data collected with the BABAR detector at the PEP-II e+e- storage ring at the Stanford Linear Accelerator Center. The measurement was performed by partially reconstructing the D*+ meson from $$\bar{B}$$0 → D*+ℓ-$$\bar{v}$$ℓ decays using only the soft pion of the D*+ → D0π+ decay to reconstruct its four vector. The branching fraction was measured to be β($$\bar{B}$$0 → D*+ℓ-$$\bar{v}$$ℓ) = (4.91 ± 0.01stat ± 0.15syst)%.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC02-76SF00515
- OSTI ID:
- 969220
- Report Number(s):
- SLAC-R-938; TRN: US1000262
- Country of Publication:
- United States
- Language:
- English
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