ISSN - 00319007, EISSN - 10797114, Physical Review Letters, 2002, vol. 89, p. 118021-118027
Measurement of the B0 lifetime with partially reconstructed B0 → D-ℓ+νℓ decays
The measurement of B0 lifetime with partially reconstructed B0→D-ℓ+νℓ decay was presented. The statistical error of the validation was included in the background systematic error. Results showed that the final relative error of ±1.9% was found by adding in quadrature the uncertainties from the sources.