Measurement of the B0 meson lifetime with partial reconstruction of B0 --> D*- pi+ and B0 --> D*- rho+ decays

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dc.creatorThe BABAR Collaboration
dc.creatorAubert, B.
dc.date2002-12-05
dc.date.accessioned2026-07-07T12:01:52Z
dc.date.available2026-07-07T12:01:52Z
dc.descriptionThe neutral $B$ meson lifetime is measured with the data collected by the BaBar detector at the PEP-II storage ring during the years 1999 and 2000, with a total integrated luminosity of 20.7 ${\rm fb}^{-1}$. The decays $B^0 \to D^{*-} π^+$ and $B^0 \to D^{*-} ρ^+$ are selected with a partial-reconstruction technique, yielding samples of $6970 \pm 240$ and $5520 \pm 250$ signal events, respectively. With these events, the $B^0 $ lifetime is measured to be $ 1.533 \pm 0.034 {\rm (stat.)} \pm 0.038 {\rm (syst.)} {\rm ps}$. This measurement serves as a test and validation of procedures required to measure the CP violation parameter $\sin(2β+ γ)$ with partial reconstruction of these modes.
dc.description8 pages, 2 encapsulated postscript figues
dc.identifierhttps://arxiv.org/abs/hep-ex/0212012
dc.identifierhttp://arxiv.org/abs/hep-ex/0212012
dc.identifierPhys.Rev.D67:091101,2003
dc.identifierdoi:10.1103/PhysRevD.67.091101
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/207247
dc.subjectHigh Energy Physics - Experiment
dc.titleMeasurement of the B0 meson lifetime with partial reconstruction of B0 --> D*- pi+ and B0 --> D*- rho+ decays
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