Measurement of the oscillation frequency for B 0 -B? 0 mixing using hadronic B 0 decays
Journal
Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Journal Volume
542
Journal Issue
3-4
Pages
207-215
Date Issued
2002
Author(s)
Tomura, T.
Abstract
The oscillation frequency of B 0-B̄ 0 mixing (Δm d) has been measured using 29.1 fb -1 of data collected with the Belle detector at KEKB. This measurement is made through the distributions of the proper decay time difference of B pairs in events tagged as same- and opposite-flavor decays. In each event, one B is fully reconstructed in a flavor-specific hadronic decay mode, while the flavor of the other is extracted through a likelihood calculated from the b-flavor information carried in its final decay products. We obtain Δm d = (0.528 ± 0.017 ± 0.011) ps -1, where the first error is statistical and the second error is systematic. © 2002 Elsevier Science B.V. All rights reserved.
Other Subjects
analytical error; article; calculation; degradation; elementary particle; mathematical model; measurement; oscillation
Type
journal article