Mattione Update 09212011

Summary

• OBJECTIVE: I'm updating the reconstruction uncertainties to improve the particle-ID algorithms and support the kinematic fitting analyses.

• PLAN: I'm comparing the generated and reconstructed track parameters in the TOF, BCAL, and FCAL systems to determine the uncertainties.

• STATUS: TOF Uncertainties are below.

TOF Time Uncertainty

π^- hits in both TOF planes

• Δt vs. x, y, average dE

Δt vs. x

Δt vs. y

Δt vs. avg. dE

• Fit the Δt distributions to Gaussian functions, σ_t's are fit below.

σ_t vs. x

σ_t vs. y

σ_t vs. avg. dE

π^- hit only in the horizontal plane

• Δt vs. x, y, dE

Δt vs. x

Δt vs. dE

• Fit the Δt distributions to Gaussian functions, σ_t's are fit below.

σ_t vs. x

σ_t vs. dE

π^- hit only in the vertical plane

• Δt vs. x, y, dE

Δt vs. y

Δt vs. dE

• Fit the Δt distributions to Gaussian functions, σ_t's are fit below.

σ_t vs. y

σ_t vs. dE

TOF Deposited Energy Uncertainty

• ΔdE (Average - Most Probable) vs. Average dE

ΔdE vs. avg. dE

ΔdE vs. Probable dE