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Searches for the decays B-0 -> l(+/-)tau(-/+) and B+-> l(+)nu (l = e, mu) using hadronic tag reconstruction

Abstract:

We present searches for the leptonic decays B+→ℓ+ν and the lepton flavor violating decays B0→ℓ±τ, where ℓ=e, μ, with data collected by the BABAR experiment at SLAC. This search demonstrates a novel technique in which we fully reconstruct the accompanying B̄ in Υ(4S)→BB̄ events, and look for a monoenergetic lepton from the signal B decay. The signal yield is extracted from a fit to the signal lepton candidate momentum distribution in the signal B rest frame. Using a data sample of approximatel...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.77.091104

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Journal:
Physical Review D More from this journal
Volume:
77
Issue:
9
Publication date:
2008-05-01
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
Pubs id:
pubs:211289
UUID:
uuid:f70a7c9b-09c4-4780-a8f5-94cd33e2d9a6
Local pid:
pubs:211289
Source identifiers:
211289
Deposit date:
2012-12-19

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