# Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay

Abstract : From an analysis of the flavor-tagged decay \bsdec we obtain the width difference between the $B_s^0$ light and heavy mass eigenstates, $\Delta \Gamma_s \equiv \Gamma_L - \Gamma_H = 0.19 \pm 0.07 {\rm (stat)}\thinspace ^{+0.02}_{-0.01} {\rm (syst)}$ ps$^{-1}$, and the CP-violating phase, $\phi_{s} =-0.57 ^{+0.24}_{-0.30} {\rm (stat)}\thinspace ^{+0.07}_{-0.02} {\rm (syst)}$. The allowed 90% C.L. intervals of $\Delta \Gamma_s$ and $\phi_s$ are $0.06 <\Delta \Gamma_s <0.30$ ps$^{-1}$ and $-1.20 <\phi_s < 0.06$, respectively. The data sample corresponds to an integrated luminosity of 2.8 fb$^{-1}$ accumulated with the D0 detector at the Fermilab Tevatron collider.
Document type :
Journal articles

http://hal.in2p3.fr/in2p3-00256780
Contributor : Emmanuelle Vernay <>
Submitted on : Monday, February 18, 2008 - 8:53:26 AM
Last modification on : Thursday, November 19, 2020 - 12:58:44 PM

### Citation

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, et al.. Measurement of $\boldmath {B_s^0}$ mixing parameters from the flavor-tagged decay. Physical Review Letters, American Physical Society, 2008, 101, pp.241801. ⟨10.1103/PhysRevLett.101.241801⟩. ⟨in2p3-00256780⟩

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