Precise measurement of B0 - B̄0 mixing parameters at the Υ(4S)

Journal article

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.

Authors: Behrens, B; Ford, W; Gritsan, A; Roy, J; Smith, J

• Journal: Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
• Volume: 490
• Issue: 1-2
• Pages: 36-44
• Publication date: 2000-09-28
• DOI: 10.1016/S0370-2693(00)00990-4
• ISSN: 0370-2693
• Language: English