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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Branching fraction measurement of B+ -> omega l(+)nu decays

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dc.contributor.author BABAR Collaboration
dc.contributor.author Martínez Vidal, Fernando
dc.contributor.author Oyanguren Campos, Arantza
dc.date.accessioned 2014-04-01T09:05:04Z
dc.date.available 2014-04-01T09:05:04Z
dc.date.issued 2013
dc.identifier.uri http://dx.doi.org/10.1103/PhysRevD.87.032004
dc.identifier.uri http://hdl.handle.net/10550/33917
dc.description.abstract 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.
dc.relation.ispartof Physical Review D, 2013, vol. 87, num. 3, p. 032004-1-032004-11
dc.rights.uri info:eu-repo/semantics/openAccess
dc.source 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
dc.subject Física nuclear
dc.title Branching fraction measurement of B+ -> omega l(+)nu decays
dc.type info:eu-repo/semantics/article
dc.date.updated 2014-04-01T09:05:04Z
dc.identifier.doi http://dx.doi.org/10.1103/PhysRevD.87.032004
dc.identifier.idgrec 084159

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