CLNS 00-1668 CLEO 00-6 Precise Measurement of B 0 − B 0 Mixing Parameters at the Υ(4S)
نویسندگان
چکیده
We describe a measurement ofB−B0 mixing parameters exploiting a method of partial reconstruction of the decay chains B → Dπ and B → Dρ. Using 9.6 ×10BB pairs collected at the Cornell Electron Storage Ring, we find χd = 0.198 ± 0.013 ± 0.014, |yd| < 0.41 at 95% confidence level, and |Re(ǫB)| < 0.034 at 95% confidence level.
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