The BaBar collaboration measured the decay branching fraction Br(B0→D∗−π+π−π+)=(7.26±0.11(stat.)±0.31(syst.))×10−3Br(B0→D∗−π+π−π+)=(7.26±0.11(stat.)±0.31(syst.))×10−3 using a sample of (470.9±2.8)×106 BB¯¯¯(470.9±2.8)×106 BB¯ pairs. This measurement will facilitate the measurement of Br(B0→D∗−τ+ντ)Br(B0→D∗−τ+ντ) with τ+→π+π−π+ν¯¯¯ττ+→π+π−π+ν¯τ at hadronic colliders, improving the experimental precision on the normalization branching fraction Br(B0→D∗−π+π−π+)Br(B0→D∗−π+π−π+).
Measurement of the B0 to D∗− π+ π+ π− branching fraction by BABAR
LUSIANI, Alberto
2016-01-01
Abstract
The BaBar collaboration measured the decay branching fraction Br(B0→D∗−π+π−π+)=(7.26±0.11(stat.)±0.31(syst.))×10−3Br(B0→D∗−π+π−π+)=(7.26±0.11(stat.)±0.31(syst.))×10−3 using a sample of (470.9±2.8)×106 BB¯¯¯(470.9±2.8)×106 BB¯ pairs. This measurement will facilitate the measurement of Br(B0→D∗−τ+ντ)Br(B0→D∗−τ+ντ) with τ+→π+π−π+ν¯¯¯ττ+→π+π−π+ν¯τ at hadronic colliders, improving the experimental precision on the normalization branching fraction Br(B0→D∗−π+π−π+)Br(B0→D∗−π+π−π+).File in questo prodotto:
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