@Article{BABARCollaborationLees_etal2013, author="BABAR Collaboration (Lees, J. P. et al and Martinez-Vidal, F. and Oyanguren, A. and Villanueva-Perez, P.", title="Measurement of the B+ -> omega l(+) nu branching fraction with semileptonically tagged B mesons", journal="Physical Review D", year="2013", publisher="Amer Physical Soc", volume="88", number="7", pages="072006--8pp", abstract="We report a measurement of the branching fraction of the exclusive charmless semileptonic decay B+ -> omega l(+) nu, where l is either an electron or amuon. We use samples of B+ mesons tagged by a reconstructed charmed semileptonic decay of the other B meson in the event. The measurement is based on a data set of 426.1 fb(-1) of e(+)e(-) collisions at a center-of-mass energy of 10.58 GeV recorded with the BABAR detector at the PEP-II asymmetric-energy e(+)e(-) storage rings. We measure a branching fraction of B(B+ -> omega l(+) nu) = (1.35 +/- 0.21 +/- 0.11) x 10(-4), where the uncertainties are statistical and systematic, respectively. We also present measurements of the partial branching fractions in three bins of q(2), the invariant-mass squared of the lepton-neutrino system, and we compare them to theoretical predictions of the form factors.", optnote="WOS:000326099800002", optnote="exported from refbase (https://references.ific.uv.es/refbase/show.php?record=1631), last updated on Thu, 21 Nov 2013 19:03:46 +0000", issn="1550-7998", doi="10.1103/PhysRevD.88.072006", opturl="http://arxiv.org/abs/1308.2589", opturl="https://doi.org/10.1103/PhysRevD.88.072006", archivePrefix="arXiv", eprint="1308.2589", language="English" }