Observation of anti-B0 ---> D0 pi0 and anti-B0 ---> D*0 pi0
Collaboration
10 pages
Published in:
- Phys.Rev.Lett. 88 (2002) 062001
e-Print:
- hep-ex/0110055 [hep-ex]
Report number:
- CLNS-01-1755,
- CLEO-01-18
Experiments:
- CESR-CLEO-II
View in:
Citations per year
Abstract: (arXiv)
We have studied the color-suppressed hadronic decays of neutral B mesons into the final states D(*)0 pi0. Using 9.67 million B-pairs collected with the CLEO detector, we observe the decays B0bar -> D0 pi0 and B0bar -> D*0 pi0 with the branching fractions BR(B0bar -> D0 pi0) = (2.74 -0.32 +0.36 +-0.55) 10^{-4} and BR(B0bar -> D*0 pi0) = (2.20 -0.52 +0.59 +-0.79) 10^{-4}. The first error is statistical and the second systematic. The statistical significance of the D0 pi0 signal is 12.1 sigma (5.9 sigma for D*0 pi0). Utilizing the B0bar -> D(*)0 pi0 branching fractions we determine the strong phases delta_I between isospin 1/2 and 3/2 amplitudes in the D pi and D* pi final states to be cos delta_I = 0.89 +- 0.08 and cos delta_I = 0.89 +- 0.08, respectively.- electron positron: colliding beams
- electron positron: annihilation
- Upsilon(10570): electroproduction
- B: pair production
- B0: hadronic decay
- D0
- D*(2010)
- B0: branching ratio
- amplitude analysis: isospin
- CLEO
References(12)
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