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Observation of B0→K*0K̄*0 and search for B0→K*0K*0

Abstract:

We report the observation of the b→d penguin-dominated decay B0→K*0K̄*0 with a sample of 383.2±4.2 million BB̄ pairs collected with the BABAR detector at the PEP-II asymmetric-energy e+e- collider at the Stanford Linear Accelerator Center. The measured branching fraction is B(B0→K*0K̄*0)=[1.28-0.30+0.35±0.11] ×10-6 and the fraction of longitudinal polarization is fL(B0→K*0K̄*0)=0.80-0.12+0.10±0.06. The first error quoted is statistical and the second systematic. We also obtain an upper limit ...

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Journal:
Physical Review Letters
Volume:
100
Issue:
8
Publication date:
2008-02-25
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
URN:
uuid:f1f8a504-3e30-4258-a138-9c4d2290cdb4
Source identifiers:
211391
Local pid:
pubs:211391
Language:
English

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