Precise Measurement of $B^{0}\to \bar{B^{0}$ Mixing Parameters at the $\Upsilon($S)$

B.H. Behrens; CLEO Collaboration; et al

arxiv: hep-ex/0005013 · v2 · submitted 2000-05-08 · ✦ hep-ex

Precise Measurement of B⁰to bar{B⁰ Mixing Parameters at the Upsilon(S)

B.H. Behrens , et al , CLEO Collaboration This is my paper

classification ✦ hep-ex

keywords confidencelevelmeasurementmixingparametersbbbarchainscollected

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We describe a measurement of B^0-B^0bar mixing parameters exploiting a method of partial reconstruction of the decay chains B0 -> D^{*-}\pi^+ and B0 -> D^{*-}\rho^+. Using 9.6 x 10^6 BBbar pairs collected at the Cornell Electron Storage Ring, we find \chi_d = 0.198 +- 0.013 +- 0.014, |y_d|<0.41 at 95% confidence level, and |Re(\epsilon_B)|<0.034 at 95% confidence level.

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