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  1. Overview
  2. Top

  3. Bottom

    • High Production Rate
      σ(bb) ∼ 50μb = O(105) larger than e+e- B-factories.

    • All b-hadrons produced.

    • Huge total inelastic cross section ∼100mb
      → challenging reconstruction and excellent trigger
          • Di-Lepton Trigger
          • Fast Track Finder at L1 + Silicon Impact Parameter at L2
                            (Impact-parameter Resolution ∼ 48μm)
            → Displaced Track Trigger at L2
            → Hadronic-mode Trigger Sensitivity ∼ x105

         • Further contents as below
    1. Life ; Updated
    2. Mass ; No Updates
    3. Branching Ratio ; Updated
    4. CP violation and Mixing ; No Updates
yoshiaki.fujii@kek.jp, Mar.27,2004 at JPS Kyushu