Difference between revisions of "Mattione Update 09042013"
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== Single π<sup>+</sup> Track == | == Single π<sup>+</sup> Track == | ||
| − | === Single π<sup>+</sup> Reconstruction (trackeff_hists plugin | + | === Single π<sup>+</sup> Reconstruction: Current (Trunk) Code, trackeff_hists plugin === |
| − | * The below plots show the track reconstruction efficiency and resolution using the single-track scripts plugin (trackeff_hists). | + | * 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: | * 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." | ** If a track is reconstructed using any of the hits that were on the thrown track it is considered "found." | ||
| Line 12: | Line 12: | ||
|} | |} | ||
| − | === Single π<sup>+</sup> Reconstruction (NEW trackeffv2 plugin | + | === Single π<sup>+</sup> Reconstruction: Current (Trunk) Code, NEW trackeffv2 plugin === |
| − | * The below plots show the track reconstruction efficiency | + | * 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." | * 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 | ** "Close" for track candidates is defined as: Δp/p < 20%, Δθ < 40 degrees, Δφ < 40 degrees, ΔVertex-Z < 1 km | ||
| Line 25: | Line 25: | ||
** If I expand the requirements for the "Close" window, the efficiency increases, and the chosen parameters were somewhat arbitrary. | ** If I expand the requirements for the "Close" window, the efficiency increases, and the chosen parameters were somewhat arbitrary. | ||
| − | + | === Single π<sup>+</sup> Reconstruction: NEW Spiral Code, NEW trackeffv2 plugin === | |
| + | * The below plots show the track candidate and time-based track reconstruction efficiency for the new spiral code 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 | ||
| + | ==== Track Candidates ==== | ||
| + | {| class="wikitable" | ||
| + | | [[Image:Mattione_Update_09042013_Efficiency_Candidates_Single_Spiral.png|thumb|left|500px|Track Candidates (trackeffv2 plugin)]] | ||
| + | | [[Image:Mattione_Update_09042013_Efficiency_TBT_Single_Spiral.png|thumb|left|500px|Time-Based Tracks (trackeffv2 plugin)]] | ||
| + | |} | ||
== ρ Mesons == | == ρ Mesons == | ||
Revision as of 16:56, 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, NEW trackeffv2 plugin
- The below plots show the track candidate and time-based track reconstruction efficiency for the new spiral code 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
