Precise Measurement of [Formula presented] Meson Lifetimes with Hadronic Decay Final States
Journal
Physical Review Letters
Journal Volume
88
Journal Issue
17
Pages
6-
Date Issued
2002
Author(s)
Abe, K. et al.
Abe, K.
Abe, R.
Abe, T.
Adachi, I.
Ahn, B.S.
Aihara, H.
Akatsu, M.
Asano, Y.
Aso, T.
Aushev, T.
Bakich, A.M.
Abstract
The lifetimes of the B(0) and B- mesons are extracted from 29.1 fb(-1) of data collected with the Belle detector at the KEK B factory. A fit to the decay length differences of neutral and charged B meson pairs, measured in events where one of the B mesons is fully reconstructed in several hadronic modes, yields tau(B(0)) = 1.554+/-0.030(stat)+/-0.019(syst) ps, tau(B-) = 1.695+/-0.026(stat)+/-0.015(syst) ps, and tau(B-)/tau(B(0)) = 1.091+/-0.023(stat)+/-0.014(syst).
Type
journal article