We describe a measurement of B0 - B̄0 mixing parameters exploiting a method of partial reconstruction of the decay chains B̄ → D(* ±)π(±) and B̄ → D(* ±) ρ (±). Using 9.6 x 106BB̄ pairs collected at the Cornell Electron Storage Ring, we find χ(d) = 0.198 ± 0.013 ± 0.014, |y(d)| < 0.40 at 95% confidence level, and |(R) e(ε(B)| < 0.034 at 95% confidence level. (C) 2000 Elsevier Science B.V.
|Number of pages||9|
|Journal||Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics|
|Publication status||Published - 2000 Sep 28|
Bibliographical noteFunding Information:
We gratefully acknowledge the effort of the CESR staff in providing us with excellent luminosity and running conditions. This work was supported by the National Science Foundation, the US Department of Energy, the Research Corporation, the Natural Sciences and Engineering Research Council of Canada, the A.P. Sloan Foundation, the Swiss National Science Foundation, the Texas Advanced Research Program, and the Alexander von Humboldt Stiftung.
All Science Journal Classification (ASJC) codes
- Nuclear and High Energy Physics