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

2002/03/26 by The BABAR Collaboration, B. Aubert, Aubert, B.
Medicine · Physics and Astronomy · #Cardiac Imaging and Diagnostics #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #hep-ex

paper · pdf · doi:10.48550/arxiv.hep-ex/0203036

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

arxiv created 2002/03/26 · openalex publication_date 2002/03/26 · arxiv updated 2009/11/30 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28

Abstract

A sample of about 5500 B⁰ → D^*+ ρ^- and 700 B⁰ → D^*+ a₁^- events is identified, using the technique of partial reconstruction, among 22.7 B B pairs collected by the BaBar experiment at the PEP-II storage ring. With these events, the B⁰ lifetime is measured to be 1.616 ± 0.064 ± 0.075 ps. This measurement serves as validation for the procedures required to measure sin(2β+ γ) with partial reconstruction of B⁰ → D^*+ ρ^-.

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