Measurement of the branching fraction of B+ → τ+ντ decays with the semileptonic tagging method and the full Belle data sample

Belle Collaboration

研究成果: Paper

抄録

We report a measurement of the branching fraction of B+ → τ+ντ decays using a data sample of 772 × 106BB pairs, collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e collider. We reconstruct the accompanying B meson in a semileptonic decay and detect the B+ → τ+ντ candidate in the recoiling event. We obtain a branching fraction of B(B+ → τ+ντ) = [1.25 ± 0.28(stat.) ± 0.27(syst.)] × 10−4. This result is in good agreement with previous measurements and the expectation from calculations based on the Standard Model.

本文言語English
出版ステータスPublished - 2014
イベント8th International Workshop on the CKM Unitarity Triangle, CKM 2014 - Vienna, Austria
継続期間: 2014 9 82014 9 12

Conference

Conference8th International Workshop on the CKM Unitarity Triangle, CKM 2014
CountryAustria
CityVienna
Period14/9/814/9/12

ASJC Scopus subject areas

  • Mathematics (miscellaneous)

フィンガープリント 「Measurement of the branching fraction of B<sup>+</sup> → τ<sup>+</sup>ν<sub>τ</sub> decays with the semileptonic tagging method and the full Belle data sample」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

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