Measurement of the B0 Meson Lifetime with Partial Reconstruction of B0->D*-pi+ and B0->D*-rho+ Decays
The 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 fb{sup -1}. The decays B{sup 0} {yields} D*{sup -} {pi}{sup +} and B{sup 0} {yields} D*{sup -} {rho}{sup +} are selected with a partial-reconstruction technique, yielding samples of 6970 {+-} 240 and 5520 {+-} 250 signal events, respectively. With these events, the B{sup 0} lifetime is measured to be 1.533 {+-} 0.034 (stat.) {+-} 0.038 (syst.) ps. This measurement serves as a test and validation of procedures required to measure the CP violation parameter sin (2{beta} + {gamma}) with partial reconstruction of these modes.
- Research Organization:
- SLAC National Accelerator Lab., Menlo Park, CA (United States)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 808714
- Report Number(s):
- SLAC-PUB-9602; TRN: US0302583
- Resource Relation:
- Other Information: PBD: 5 Dec 2002
- Country of Publication:
- United States
- Language:
- English
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