Measurement of the D∗− polarization in the decay B0 → D∗−τ+ντ

Belle Collaboration

    Research output: Contribution to conferencePaperpeer-review

    Abstract

    We report the first measurement of the D∗− meson polarization in the decay B0 → D∗−τ+ντ using the full data sample of 772×106 BB¯ pairs recorded with the Belle detector at the KEKB electron-positron collider. Our result, FLD∗ = 0.60 ±0.08(stat) ±0.04(sys), where FLD∗ denotes the D∗− meson longitudinal polarization fraction, agrees within about 1.7 standard deviations of the standard model prediction.

    Original languageEnglish
    Publication statusPublished - 2018 Jan 1
    Event10th International Workshop on the CKM Unitarity Triangle, CKM 2018 - Heidelberg, Germany
    Duration: 2018 Sept 172018 Sept 21

    Conference

    Conference10th International Workshop on the CKM Unitarity Triangle, CKM 2018
    Country/TerritoryGermany
    CityHeidelberg
    Period18/9/1718/9/21

    ASJC Scopus subject areas

    • Mathematics (miscellaneous)

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