Measurement of the D?? polarization in the decay B0 → D??τ+ντ
Journal
10th International Workshop on the CKM Unitarity Triangle, CKM 2018
Date Issued
2018
Author(s)
Abdesselam A. et al.
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. ? 2018 Heidelberg University. All rights reserved.
Subjects
Bosons; Hadrons; Belle detectors; Data sample; Longitudinal polarization fraction; Standard deviation; The standard model; Polarization
Type
conference paper