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Branching Fraction Measurement of B0 to D(*)-pi+and B- to D(*)0pi+ and Isospin Analyses of B to D(*)pi Decays [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2006.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
8 pages : digital, PDF file
Additional Creators
Stanford Linear Accelerator Center, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
Using 65 million Υ(4S) → B{bar B} events collected with the BABAR detector at the PEP-II e⁺e⁻ storage ring at the Stanford Linear Accelerator Center, they measure the color-favored branching fractions Β({bar B}° → D⁺π⁻) = (2.63 ± 0.05 ± 0.22) x 10⁻³, Β({bar B}° → D*⁺π⁻) = (2.79 ± 0.08 ± 0.18) x 10⁻³, Β(B⁻ → D°π⁻) = (4.90 ± 0.07 ± 0.23) x 10⁻³ and Β(B⁻ → D*° π⁻) = (5.52 ± 0.17 ± 0.43) x 10⁻³, where the first error is statistical and the second is systematic. With these results and the current world average for the branching fraction for the color-suppressed decay {bar B}° → D{sup (*)0}π°, the cosines of the strong phase difference δ between the I = 1/2 and I = 3/2 isospin amplitudes are determined to be cosσ = 0.860{sub -0.006-0.028}{sup +0.007+0.029} for the {bar B} → Dπ process and cosσ = 0.917{sub -0.016-0.051}{sup +0.018+0.059} for the {bar B} → D*π process. The results for cosδ suggest that final-state interactions are presented in the Dπ system.
Report Numbers
E 1.99:slac-pub-12031
slac-pub-12031
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Other Subject(s)
Note
Published through SciTech Connect.
10/17/2006.
"slac-pub-12031"
"hep-ex/0610027"
Physical Review D
Contributed to 33rd International Conference on High Energy Physics (ICHEP 06), Moscow, Russia, 26 Jul - 2 Aug 2006.
Aubert, B.
Funding Information
AC02-76SF00515
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