Measurement of the branching fractions of the B+ →ηâ "+νâ " and B+ →η′â "+νâ " decays with signal-side only reconstruction in the full q2 range

(Belle Collaboration)

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4 Citations (Scopus)

Abstract

The branching fractions of the decays B+→ηâ "+νâ "and B+→η′â "+νâ "are measured, where â "is either an electron or a muon, using a data sample of 711 fb-1 containing 772×106BB¯ pairs collected at the I (4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e-collider. To reduce the dependence of the result on the form factor model, the measurement is performed over the entire q2 range. The resulting branching fractions are B(B+→ηâ "+νâ ")=(2.83±0.55(stat.)±0.34(syst.))×10-5 and B(B+→η′â "+νâ ")=(2.79±1.29(stat.)±0.30(syst.))×10-5.

Original languageEnglish
Article number032013
JournalPhysical Review D
Volume106
Issue number3
DOIs
Publication statusPublished - 2022 Aug 1

Bibliographical note

Publisher Copyright:
© 2022 authors. Published by the American Physical Society. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

ASJC Scopus subject areas

  • Nuclear and High Energy Physics

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