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Measurement of the B̄ → D(*)πℓν̄ℓ branching fraction

Abstract:

A study of b semileptonic decays into D, Dπ± and D*π± final states is presented. The D0, D+ and D*+ mesons are exclusively reconstructed in Z decay data recorded from 1992 to 1995 in the DELPHI experiment at LEP. The overall branching fractions are measured to be: BR(b→ D0ℓ-νℓX) = (7.04 + 0.34 (stat) + 0.36 (syst.exp) + 0.17 (BRD))%, BR(b→ D+ℓ-νℓX) = (2.72 + 0.19 (stat) + 0.16 (syst.exp) + 0.18 (BRD))%, BR(b→ D*+ℓ-νℓX) = (2.75 + 0.17 (stat) + 0.13 (syst.exp) + 0.09 (BRD))%, where the D0 and D...

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Authors


Ajinenko, I More by this author
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Journal:
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume:
475
Issue:
3-4
Pages:
407-428
Publication date:
2000-03-02
DOI:
ISSN:
0370-2693
URN:
uuid:62ab078a-ede0-49af-8489-f41132482904
Source identifiers:
210783
Local pid:
pubs:210783
Language:
English

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