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

V. M. Abazov et al. (D0 Collaboration)
Phys. Rev. D 76, 057101 – Published 17 September 2007

Abstract

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(ΓLΓH)=0.13±0.09ps1 and |ϕs|=0.700.47+0.39 or ΔΓs=0.13±0.09ps1 and |ϕs|=2.440.39+0.47. The data sample corresponds to an integrated luminosity of 1.1fb1 accumulated with the D0 detector at the Fermilab Tevatron Collider.

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  • Received 21 February 2007

DOI:https://doi.org/10.1103/PhysRevD.76.057101

©2007 American Physical Society

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Vol. 76, Iss. 5 — 1 September 2007

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