Measurement of the {bar B}{sup 0} lifetime and of the B{sup 0}-{bar B}{sup 0} oscillation frequency using partially reconstructed {bar B}{sup 0} --> D*{sup +} {ell}{sup -} {anti {nu}}{sub l} decays
- SLAC
The authors present a simultaneous measurement of the {bar B}{sup 0} lifetime {tau}(B{sup 0}) and mixing parameter {Delta}m{sub d}. They use a sample of about 50000 {bar B}{sup 0} --> D*{sup +} 1 {anti {nu}}(l) partially reconstructed decays identified with the BABAR detector at the PEP-II storage ring at SLAC, where the flavor of the other B meson is determined from the charge of another high momentum lepton in the same event. The preliminary results are: tau(B{sup 0}) = (1.50 {+-} 0.008(stat.) {+-} 0.030(syst.)) ps, {Delta}m{sub d} = (0.523 {+-} 0.004(stat.) {+-} 0.007(syst.)) p{sup s}(-1).
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515;
- OSTI ID:
- 829705
- Report Number(s):
- SLAC-PUB-10616
- Country of Publication:
- United States
- Language:
- English
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