Measurement of the B0 Lifetime with Partial Reconstruction of B0bar -> D*+ rho-

Details Measurement of the B0 Lifetime with Partial Reconstruction of B0bar -> D*+ rho- Measurement of the B0 Lifetime with Partial Reconstruction of B0bar -> D*+ rho-

2002-03-26

arxiv.org/abs/hep-ex/0203036v1

Physics

High Energy Physics

High Energy Physics - Experiment

18 pages, 3 encapsulated postscript figures, submitted to Moriond QCD 2002

Scientific paper

A sample of about 5500 $\bar B^0 \to D^{*+} \rho^-$ and 700 $\bar B^0 \to D^{*+} a_1^-$ events is identified, using the technique of partial reconstruction, among 22.7 $B\bar B$ pairs collected by the BaBar experiment at the PEP-II storage ring. With these events, the $B^0$ lifetime is measured to be $1.616 \pm 0.064 \pm 0.075$ ps. This measurement serves as validation for the procedures required to measure $\sin(2\beta + \gamma)$ with partial reconstruction of $\bar B^0 \to D^{*+} \rho^-$.

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