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Phys. Rev. D 76, 057101 (2007) [7 pages]

Combined D0 measurements constraining the CP-violating phase and width difference in the Bs0 system

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V. M. Abazov et al. D0 Collaboration
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Received 21 February 2007; published 17 September 2007

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|=0.70-0.47+0.39 or ΔΓs=-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.

© 2007 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.76.057101
DOI:
10.1103/PhysRevD.76.057101
PACS:
13.25.Hw, 11.30.Er