Research Papers in Physics and Astronomy


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Published by American Physical Society. Phys. Rev. D 76, 057101 (2007). Copyright © 2007 American Physical Society. Permission to use.


We combine the D0 measurement of the width difference between the light and heavy Bs0 mass eigenstates and of the CP-violating mixing phase determined from the time-dependent angular distributions in the Bs0J/ψφ decays along with the charge asymmetry in semileptonic decays also measured with the D0 detector. With the additional constraint from the world average of the flavor-specific Bs0 lifetime, we obtain ΔΓs ≡ (ΓL - ΓH) = 0.13 ± 0.09 ps-1 and ∣φs∣ = 2.44-0.39+0.47. The data sample corresponds to an integrated luminosity of 1.1 fb-1 accumulated with the D0 detector at the Fermilab Tevatron Collider.

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