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DC Field | Value | Language |
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dc.contributor.author | Khan, A | - |
dc.contributor.author | Aubert, B | - |
dc.contributor.author | Bona, M | - |
dc.contributor.author | Boutigny, D | - |
dc.contributor.author | Karyotakis, Y | - |
dc.coverage.spatial | 7 | en |
dc.date.accessioned | 2008-01-09T16:46:23Z | - |
dc.date.available | 2008-01-09T16:46:23Z | - |
dc.date.issued | 2007 | - |
dc.identifier.citation | Physical Review Letters, Sep 2007 | en |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/1541 | - |
dc.description.abstract | We present measurements of the semileptonic decays B- --> D0 tau- nubar, B- --> D*0 tau- nubar, B0bar --> D+ tau- nubar, and B0bar --> D*+ tau- nubar, which are potentially sensitive to non--Standard Model amplitudes. The data sample comprises 232x10^6 Upsilon(4S) --> BBbar decays collected with the BaBar detector. From a combined fit to B- and B0bar channels, we obtain the branching fractions B(B --> D tau- nubar) = (0.86 +/- 0.24 +/- 0.11 +/- 0.06)% and B(B --> D* tau- nubar) = (1.62 +/- 0.31 +/- 0.10 +/- 0.05)% (normalized for the B0bar), where the uncertainties are statistical, systematic, and normalization-mode-related. | en |
dc.format.extent | 214731 bytes | - |
dc.format.mimetype | application/pdf | - |
dc.language.iso | en | - |
dc.publisher | American Physical Society | en |
dc.title | Observation of the semileptonic decays B ---> D* tau- anti-nu(tau) and evidence for B ---> D tau- anti-nu(tau | en |
dc.type | Preprint | en |
Appears in Collections: | Electronic and Computer Engineering Dept of Electronic and Electrical Engineering Research Papers |
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File | Description | Size | Format | |
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0709.1698v1.pdf | 209.7 kB | Adobe PDF | View/Open |
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