@article{58b9d68b3d684deeb223c118ad441cae,
title = "Measurement of the decays B→ηℓνℓ and B→η′ℓνℓ in fully reconstructed events at Belle",
abstract = "We report branching fraction measurements of the decays B+ and B+ based on 711 fb-1 of data collected near the (4S) resonance with the Belle experiment at the KEKB asymmetric-energy e+e- collider. This data sample contains 772 million BB events. One of the two B mesons is fully reconstructed in a hadronic decay mode. Among the remaining ({"}signal-B{"}) daughters, we search for the η meson in two decay channels, η→γγ and η→π+π-π0, and reconstruct the η′ meson in η′→ηπ+π- with subsequent decay of the η into γγ. Combining the two η modes and using an extended maximum likelihood, the B+ branching fraction is measured to be (4.2±1.1(stat.)±0.3(syst.))×10-5. For B+, we observe no significant signal and set an upper limit of 0.72×10-4 at 90% confidence level.",
keywords = "IDENTIFICATION",
author = "{The BELLE collaboration} and C. Bele{\~n}o and J. Dingfelder and P. Urquijo and H. Aihara and {Al Said}, S. and Asner, {D. M.} and T. Aushev and R. Ayad and V. Babu and I. Badhrees and Bakich, {A. M.} and V. Bansal and P. Behera and B. Bhuyan and J. Biswal and A. Bobrov and M. Bra{\v c}ko and Browder, {T. E.} and D. {\v C}ervenkov and A. Chen and Cheon, {B. G.} and R. Chistov and K. Cho and Choi, {S. K.} and Y. Choi and D. Cinabro and N. Dash and {Di Carlo}, S. and Z. Dole{\v Z}al and S. Eidelman and H. Farhat and Fast, {J. E.} and T. Ferber and A. Frey and Fulsom, {B. G.} and V. Gaur and N. Gabyshev and A. Garmash and R. Gillard and P. Goldenzweig and T. Hara and H. Hayashii and P. Krokovny and D. Matvienko and V. Shebalin and Y. Usov and A. Vinokurova and V. Vorobyev and V. Zhilich and V. Zhulanov",
year = "2017",
month = nov,
day = "28",
doi = "10.1103/PhysRevD.96.091102",
language = "English",
volume = "96",
journal = "Physical Review D",
issn = "2470-0010",
publisher = "AMER PHYSICAL SOC",
number = "9",
}