Bd mixing measurements with the BABAR detector

Abstract

The $B^0\overline{B^0}$ oscillation frequency $\Delta m_d$ has been measured with the BaBar detector at the PEP-II asymmetric $B$ factory with different experimental techniques. The discussion here is focused on the recent simultaneous measurement of $\Delta m_d$ and ${\tau }_{B^0}$ with exclusively reconstructed $B^0\to D^{\ast -}{l}^{+}{\nu }_l$ decays, based on 23 million $B\bar{B}$ pairs collected by BaBar. The measurements of $\Delta m_d$ with fully reconstructed hadronic decays and with dilepton events are also reviewed. The average BaBar result is $\Delta m_d=0.500\pm 0.008\pm 0.006$ $p{s}^{-1}$.

5 pages, 2 encapsulated postscript figures, contributed to the proceedings of ICHEP2002

References in corpus (5)

• The BABAR Detector
• Measurement of B0-anti-B0 Flavor Oscillations in Hadronic B0 Decays
• Measurement of the B^0 and B^+ meson lifetimes with fully reconstructed hadronic final states
• Measurement of the B0-anti-B0-Oscillation Frequency with Inclusive Dilepton Events
• Measurement of the B0 Lifetime with Partially Reconstructed B0 --> D*- l+ nu Decays