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Branching fraction measurement of B+ -> omega l(+)nu decays
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Branching fraction measurement of B+ -> omega l(+)nu decays
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| BABAR Collaboration; Martínez Vidal, Fernando Perfil; Oyanguren Campos, Arantza Perfil | |||
| This document is a artículoDate2013 | |||
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Este documento está disponible también en : http://dx.doi.org/10.1103/PhysRevD.87.032004 |
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Este documento está disponible también en : http://hdl.handle.net/10550/33917 |
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| We present a measurement of the B+ -> omega l(+)nu branching fraction based on a sample of 467 million B (B) over bar pairs recorded by the BABAR detector at the SLAC PEP-II e(+)e(-) collider. We observe 1125 +/- 131 signal decays, corresponding to a branching fraction of B(B+ -> omega l(+)nu) = (1.21 +/- 0.14 +/- 0.08) x 10(-4), where the first error is statistical and the second is systematic. The dependence of the decay rate on q(2), the invariant mass squared of the leptons, is compared to QCD predictions of the form factors based on a quark model and light-cone sum rules. | |||
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BABAR Collaboration Martínez Vidal, Fernando Oyanguren Campos, Arantza 2013 Branching fraction measurement of B+ -> omega l(+)nu decays Physical Review D 87 3 032004-1 032004-11 |
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| http://dx.doi.org/10.1103/PhysRevD.87.032004 |
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