Direct limits on the B-s(0) oscillation frequency

@article{Collaboration2006DirectLO,
  title={Direct limits on the B-s(0) oscillation frequency},
  author={D0 Collaboration and Victor Mukhamedovich Abazov and et al.},
  journal={Physical Review Letters},
  year={2006},
  volume={97},
  pages={021802}
}
We report the first direct two-sided bound on the $B^0_s$ oscillation frequency using a large sample of $B^0_s$ semileptonic decays corresponding to approximately 1 fb$^{-1}$ of integrated luminosity collected by the \dzer\ experiment in 2002--2006 during Run II of the Fermilab Tevatron Collider. The flavor (i.e., $B^0_s$ or $\bar{B}^0_s$) of the \bs meson at the time of production was found using an opposite-side tagging technique, and the flavor at the time of decay was determined from the… 

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