Difference between revisions of "Mattione Update 09042013"
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== γp→π<sup>+</sup>π<sup>-</sup>p (ρ Mesons) == | == γp→π<sup>+</sup>π<sup>-</sup>p (ρ Mesons) == | ||
* The below plots show the track candidate and time-based track reconstruction efficiencies for both track finding codes, and the improvement. | * The below plots show the track candidate and time-based track reconstruction efficiencies for both track finding codes, and the improvement. | ||
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* Events were generated at beam energy of 9 GeV and a t-slope of 5.0 | * Events were generated at beam energy of 9 GeV and a t-slope of 5.0 | ||
| − | === | + | === Proton === |
[[Image:Mattione_Update_09042013_Thrown_Proton_Rho.png|left|350px|Thrown Protons]] | [[Image:Mattione_Update_09042013_Thrown_Proton_Rho.png|left|350px|Thrown Protons]] | ||
<br style="clear:both;"/> | <br style="clear:both;"/> | ||
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<br style="clear:both;"/> | <br style="clear:both;"/> | ||
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== γp→π<sup>+</sup>π<sup>+</sup>π<sup>-</sup>(n) == | == γp→π<sup>+</sup>π<sup>+</sup>π<sup>-</sup>(n) == | ||
| + | * The below plots show the track candidate and time-based track reconstruction efficiencies for both track finding codes, and the improvement. | ||
| + | * The definition of closeness is the same as before (see the single-track section). | ||
| + | * Events were generated at beam energy of 9 GeV and a t-slope of 5.0 | ||
| + | |||
| + | === π<sup>+</sup> === | ||
| + | [[Image:Mattione_Update_09042013_Thrown_PiPlus_n3pi.png|left|350px|Thrown π<sup>+</sup>'s]] | ||
| + | <br style="clear:both;"/> | ||
| + | {| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | ||
| + | !width="150"| Stage | ||
| + | !width="250"| Efficiency - Current Code | ||
| + | !width="250"| Efficiency - Spiral Code | ||
| + | !width="250"| Improvement - Current Code | ||
| + | !width="250"| Improvement - Spiral Code | ||
| + | |- | ||
| + | ! Track Candidates | ||
| + | | [[Image:Mattione_Update_09042013_Efficiency_Candidates_n3pi_PiPlus_Current.png|thumb|left|250px]] || [[Image:Mattione_Update_09042013_Efficiency_Candidates_n3pi_PiPlus_Spiral.png|thumb|left|250px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_Candidates_n3pi_PiPlus.png|thumb|left|250px]] || | ||
| + | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_Candidates_n3pi_PiPlus.png|thumb|left|250px]] | ||
| + | |- | ||
| + | ! Time-Based Tracks | ||
| + | | [[Image:Mattione_Update_09042013_Efficiency_TimeBased_n3pi_PiPlus_Current.png|thumb|left|250px]] || [[Image:Mattione_Update_09042013_Efficiency_TimeBased_n3pi_PiPlus_Spiral.png|thumb|left|250px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_TimeBased_n3pi_PiPlus.png|thumb|left|250px]] || | ||
| + | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_TimeBased_n3pi_PiPlus.png|thumb|left|250px]] | ||
| + | |} | ||
| + | <br style="clear:both;"/> | ||
== γp→π<sup>+</sup>π<sup>+</sup>π<sup>-</sup>π<sup>-</sup>π<sup>0</sup>(p) (b1pi) == | == γp→π<sup>+</sup>π<sup>+</sup>π<sup>-</sup>π<sup>-</sup>π<sup>0</sup>(p) (b1pi) == | ||
Revision as of 20:26, 3 September 2013
Contents
CDC Track Finding
Single π+ Track
Single π+ Reconstruction: Current (Trunk) Code, trackeff_hists plugin
- The below plots show the track reconstruction efficiency and resolution for the trunk using the single-track scripts plugin (trackeff_hists).
- However, this efficiency is extremely misleading:
- If a track is reconstructed using any of the hits that were on the thrown track it is considered "found."
- This is regardless of whether the reconstructed track momentum is anywhere close to the thrown values.
Single π+ Reconstruction: Current (Trunk) Code, NEW trackeffv2 plugin
- The below plots show the track candidate and time-based track reconstruction efficiency for the trunk using a new plugin (trackeff_hists).
- This plugin compares matches all of the thrown and reconstructed particles in the event, and requires that their momentum be "close."
- "Close" for track candidates is defined as: Δp/p < 20%, Δθ < 40 degrees, Δφ < 40 degrees, ΔVertex-Z < 1 km
- For thrown tracks with θ < 5 degrees, there is no cut on Δφ
- "Close" for time-based tracks is defined as: Δp/p < 10%, Δθ < 15 degrees, Δφ < 15 degrees, ΔVertex-Z < 10 cm
- "Close" for track candidates is defined as: Δp/p < 20%, Δθ < 40 degrees, Δφ < 40 degrees, ΔVertex-Z < 1 km
- Note that the degradation of the efficiency at forward angles matches the track resolution plot in the previous section.
- If I expand the requirements for the "Close" window, the efficiency increases, and the chosen parameters were somewhat arbitrary.
Single π+ Reconstruction: NEW Spiral Code
- The below plots show the track candidate and time-based track reconstruction efficiencies for the new spiral code.
- Note: The trackeffv2 plugin compares matches all of the thrown and reconstructed particles in the event, and requires that their momentum be "close."
- "Close" for track candidates is defined as: Δp/p < 20%, Δθ < 40 degrees, Δφ < 40 degrees, ΔVertex-Z < 1 km
- For thrown tracks with θ < 5 degrees, there is no cut on Δφ
- "Close" for time-based tracks is defined as: Δp/p < 10%, Δθ < 15 degrees, Δφ < 15 degrees, ΔVertex-Z < 10 cm
- "Close" for track candidates is defined as: Δp/p < 20%, Δθ < 40 degrees, Δφ < 40 degrees, ΔVertex-Z < 1 km
- The below plots show the improvements in the track candidate and time-based track reconstruction efficiencies with the new spiral code.
γp→π+π+π-(n)
- The below plots show the track candidate and time-based track reconstruction efficiencies for both track finding codes, and the improvement.
- The definition of closeness is the same as before (see the single-track section).
- Events were generated at beam energy of 9 GeV and a t-slope of 5.0
π+
| Stage | Efficiency - Current Code | Efficiency - Spiral Code | Improvement - Current Code | Improvement - Spiral Code |
|---|---|---|---|---|
| Track Candidates | ||||
| Time-Based Tracks |
