Trigger Analysis

Trigger Statistics Survey

The Trigger Statistics Survey is to explore possibilities of a tighter L1 Trigger to be used for future high luminosity data taking in Run 6 and beyond. In order to understand the trigger rates and the impacts of tigher trigger on a couple benchmark physics channels, a simple analysis should be performed by relevant physics AWG people. For the physics channel analyzer of relevant AWG, here is the instructions for 1) what the survey is about, 2) how to build or find an application that collects trigger statistics, 3) how to run it over your analysis collection, 4) how to interpret the output.

Results

Tau/QED
- τ → e γ, τ → μ γ
- τ → l K⁰
- γγ → p⁺ p^-;, γγ → π⁺π⁻, γγ → π⁰π⁰
- e⁺ e^- → &tau⁺ &tau^-
Inclusives/ISR
- e⁺e⁻ → a₂ π, e⁺e⁻ → φ η, e⁺e⁻ → φ ρ⁰, e⁺e⁻ → ρ⁺ ρ⁻, e⁺e⁻ → ρ⁰ ρ⁰
- e⁺e⁻ → γ X with X = 2π 2π⁰, 2π π⁰, 4π, 4π 2π⁰, 6π, μ⁺ μ⁻, ππ
- e⁺e⁻ → γ X with X=J/ψ &rarr K⁺K⁻ &gamma and J/ψ &rarr K_s K_s γ.
- e⁺e⁻ → γ Υ(2S), with Υ(2S) → Υ(1S) π⁺ π⁻, and Υ(1S) → l l
Charmless 2-body
- B → μ ν, B⁰ → K_s K_s
- B → ν anti-ν (γ)
Charmless Quasi-2-body
- B⁰ → η π⁰ (η → γγ), B^+- → η π^+-(η → γγ)
B Mixing
- B⁰B̅⁰ → (X l ν)(X l ν)
B Reco
- B^+- → D⁰ K^+- (D⁰ → K_s π⁰)

Last update: 29-Nov-2007, by Haiwen Zhao

Trigger Statistics Survey

Results

Tau/QED

Inclusives/ISR

Charmless 2-body

Charmless Quasi-2-body

B Mixing

B Reco