Difference between revisions of "Mattione Update 10242011"
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| − | == | + | == Procedure == |
* Fit David's γ σ<sub>t</sub> Improvement: Make dE, θ map | * Fit David's γ σ<sub>t</sub> Improvement: Make dE, θ map | ||
* Fit the π<sup>-</sup> BCAL σ<sub>t</sub> vs θ in dE bins, will apply improvement % to this resolution. | * Fit the π<sup>-</sup> BCAL σ<sub>t</sub> vs θ in dE bins, will apply improvement % to this resolution. | ||
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** For 1234 Segmentation, disabled BCAL hit t-smear in mc_smear, smear reconstructed shower time as a function of dE & &theta during reconstruction to reach improved resolution. | ** For 1234 Segmentation, disabled BCAL hit t-smear in mc_smear, smear reconstructed shower time as a function of dE & &theta during reconstruction to reach improved resolution. | ||
*** Proton, π<sup>+</sup>'s, π<sup>-</sup>'s all smeared the same. | *** Proton, π<sup>+</sup>'s, π<sup>-</sup>'s all smeared the same. | ||
| − | * Plot Δβ vs p for π<sup>+</sup> candidates to see proton, π<sup>+</sup> separation. | + | * Plot Δβ vs p for π<sup>+</sup> candidates to see proton, π<sup>+</sup> separation. |
== David's BCAL Photon Time Resolution Studies == | == David's BCAL Photon Time Resolution Studies == | ||
Latest revision as of 14:15, 24 October 2011
Contents
Procedure
- Fit David's γ σt Improvement: Make dE, θ map
- Fit the π- BCAL σt vs θ in dE bins, will apply improvement % to this resolution.
- Generate, simulate, smear, and reconstruct X(2000) -> b1π events
- For 1234 Segmentation, disabled BCAL hit t-smear in mc_smear, smear reconstructed shower time as a function of dE & &theta during reconstruction to reach improved resolution.
- Proton, π+'s, π-'s all smeared the same.
- For 1234 Segmentation, disabled BCAL hit t-smear in mc_smear, smear reconstructed shower time as a function of dE & &theta during reconstruction to reach improved resolution.
- Plot Δβ vs p for π+ candidates to see proton, π+ separation.
David's BCAL Photon Time Resolution Studies
- γ BCAL σt vs. dE (GeV):
Time Resolution Segmentation Ratio
- γ BCAL σt_1234 / σt_334 vs. dE (GeV):
- Fits to γ BCAL σt_1234 / σt_334 vs. θ in dE bins:
- Don't trust fits at low-θ, so linearly-interpolate between 12 and 16 degrees.
BCAL π- 334 Segmentation σt Fits
- BCAL π- 334 Segmentation σt Fits vs. θ in dE bins:
X(2000) -> b1pi Events, π+ BCAL Δβ vs p
Δβ = βp - βt = p/sqrt(p*p + m*m) - path/(c*TOF)
- X(2000) -> b1pi Events, π+ BCAL Δβ vs p, 334 Segmentation:
- X(2000) -> b1pi Events, π+ BCAL Δβ vs p, 1234 Segmentation:
