Using a sample of (470.9±2.8)×106 BB pairs, we measure the decay branching fraction B(B0→D∗-π+π-π+)=(7.26±0.11±0.31)×10-3, where the first uncertainty is statistical and the second is systematic. Our measurement will be helpful in studies of lepton universality by measuring B(B0→D∗-τ+ντ) using τ+→π+π-π+ντ decays, normalized to B(B0→D∗-π+π-π+).
Measurement of the B0 →d∗-π+π-π+ branching fraction
BATIGNANI, GIOVANNI;BETTARINI, STEFANO;Casarosa, G.;FORTI, FRANCESCO;GIORGI, MARCELLO;OBERHOF, BENJAMIN JEROME ANDREAS;PAOLONI, EUGENIO;RAMA, MATTEO;RIZZO, GIULIANA;LUECK, THOMAS;
2016-01-01
Abstract
Using a sample of (470.9±2.8)×106 BB pairs, we measure the decay branching fraction B(B0→D∗-π+π-π+)=(7.26±0.11±0.31)×10-3, where the first uncertainty is statistical and the second is systematic. Our measurement will be helpful in studies of lepton universality by measuring B(B0→D∗-τ+ντ) using τ+→π+π-π+ντ decays, normalized to B(B0→D∗-π+π-π+).File in questo prodotto:
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