A New Measurement of B -> D* Pi Branching Fractions
- SLAC
The decays {Upsilon}(4S) {yields} B{bar B}, followed by B {yields} D*{pi} and D* {yields} D{pi}, permit reconstruction of all kinematic quantities that describe the sequence without reconstruction of the D, with reasonably low backgrounds. Using an integrated e{sup +}e{sup -} luminosity of 3.1 fb{sup -1} accumulated at the {Upsilon}(4S) by the CLEO-II detector, we report measurements of {Beta}({bar B}{sup 0} {yields} D*{sup +}{pi}{sup -}) = (2.81 {+-} 0.11 {+-} 0.21 {+-} 0.05) x 10{sup -3} and {Beta}(B{sup -} {yields} D*{sup 0}{pi}{sup -}) = (4.34 {+-} 0.33 {+-} 0.34 {+-} 0.18) x 10{sup -3}.
- Research Organization:
- Stanford Linear Accelerator Center, Menlo Park, CA (US)
- Sponsoring Organization:
- USDOE Office of Science (US)
- DOE Contract Number:
- AC03-76SF00515
- OSTI ID:
- 813065
- Report Number(s):
- SLAC-PUB-9763
- Country of Publication:
- United States
- Language:
- English
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