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http://bura.brunel.ac.uk/handle/2438/19595
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DC Field | Value | Language |
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dc.contributor.author | Collaboration, TBABAR | - |
dc.contributor.author | Aubert, B | - |
dc.contributor.author | Kyberd, P | - |
dc.date.accessioned | 2019-11-14T13:55:56Z | - |
dc.date.available | 2004-08-10 | - |
dc.date.available | 2019-11-14T13:55:56Z | - |
dc.date.issued | 2004-08-10 | - |
dc.identifier.citation | ArXiv, 2004, pp. 1 - 18 | en_US |
dc.identifier.issn | 2331-8422 | - |
dc.identifier.uri | http://bura.brunel.ac.uk/handle/2438/19595 | - |
dc.description.abstract | We report a measurement of the branching fraction e^+e^- --> B0B0bar with a data sample of 81.7 fb^-1 collected at the Upsilon(4S) resonance with the BABAR detector at the PEP-II asymmetric-energy e^+e^- storage ring. Using partial reconstruction of the decay B0bar --> D^{*+} \ell^{-} \bar{\nu}_{\ell} we obtain a preliminary result of f00 = 0.486 +- 0.010(stat.) +- 0.009(sys.). Our result does not depend on branching fractions of the B0bar and the D^{*+} decay chains, on the simulated reconstruction efficiency, on the ratio of the charged and neutral B meson lifetimes, nor on assumption of isospin symmetry. This measurement is important for normalizing many B decay branching fractions, and contributes to our understanding of isospin violation in the Upsilon(4S) system. | en_US |
dc.format.extent | 1 - 18 | - |
dc.language.iso | en | en_US |
dc.publisher | ArXiv | en_US |
dc.title | Measurement of the Branching Fraction of e^+e^- --> B0B0bar at the Upsilon(4S) Resonance | en_US |
dc.type | Preprint | en_US |
dc.relation.isPartOf | ArXiv | - |
pubs.publication-status | Published online | - |
Appears in Collections: | Dept of Electronic and Electrical Engineering Research Papers |
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FullText.pdf | 228.28 kB | Adobe PDF | View/Open |
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