2007/08/13 by The BABAR Collaboration, B. Aubert, Aubert, B.
Physics and Astronomy · #FOS: Physical sciences #High Energy Physics - Experiment (hep-ex) #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions
paper · pdf · doi:10.48550/arxiv.0708.1738
openalex publication_date 2007/08/13 · openalex created_date 2024/04/11 · openalex updated_date 2026/07/28
We present a measurement of the branching fractions for anti-B -> D/D*/D(*) pi l- anti-nul decays based on 341.1 fb-1 of data collected at the Upsilon(4S) resonance with the BaBar detector at the pep-II e+e- storage rings. Events are tagged by fully reconstructing one of the B mesons in a hadronic decay mode. We obtain BF (B- -> D0 l- anti-nul) = (2.33 +/- 0.09(stat.) +/- 0.09(syst.))%, BF (B- -> D^*0 l- anti-nul) = (5.83 +/- 0.15(stat.) +/- 0.30(syst.))%, BF (B0bar -> D+ l- anti-nul) = (2.21 +/- 0.11(stat.) +/- 0.12(syst.))%, BF (B0bar -> D^*+ l- anti-nul) = (5.49 +/- 0.16(stat.) +/- 0.25(syst.))%, BF (B- -> D+ pi- l- anti-nul) = (0.42 +/- 0.06(stat.) +/- 0.03(syst.))%, BF (B- -> D^*+ pi- l- anti-nul) = (0.59 +/- 0.05(stat.) +/- 0.04(syst.))%, BF (B0bar -> D0 pi+ l- anti-nul) = (0.43 +/- 0.08(stat.) +/- 0.03(syst.))% and BF (B0bar -> D^*0 pi+ l- anti-nul) = (0.48 +/- 0.08(stat.) +/- 0.04(syst.))%.