Difference between revisions of "Mattione Update 09042013"
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(→Single π+ Reconstruction: NEW Spiral Code, NEW trackeffv2 plugin) |
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*** For thrown tracks with θ < 5 degrees, there is no cut on Δφ | *** 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 time-based tracks is defined as: Δp/p < 10%, Δθ < 15 degrees, Δφ < 15 degrees, ΔVertex-Z < 10 cm | ||
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{| class="wikitable" | {| 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)]] | ||
+ | |- | ||
| [[Image:Mattione_Update_09042013_Efficiency_Candidates_Single_Spiral.png|thumb|left|500px|Track Candidates (trackeffv2 plugin)]] | | [[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)]] | | [[Image:Mattione_Update_09042013_Efficiency_TBT_Single_Spiral.png|thumb|left|500px|Time-Based Tracks (trackeffv2 plugin)]] |
Revision as of 16:57, 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