Difference between revisions of "Mattione Update 09042013"
From GlueXWiki
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* Events were generated with beam energies between 8.4 and 9 GeV | * Events were generated with beam energies between 8.4 and 9 GeV | ||
− | === π<sup> | + | === π<sup>-</sup> === |
− | [[Image: | + | [[Image:Mattione_Update_09042013_Thrown_PiMinus_bggen.png|left|450px|Thrown π<sup>-</sup>'s]] |
<br style="clear:both;"/> | <br style="clear:both;"/> | ||
{| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | {| border="1" cellpadding="2" align="left" valign="top" style="text-align:center;" | ||
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|- | |- | ||
! Track Candidates | ! Track Candidates | ||
− | | [[Image: | + | | [[Image:Mattione_Update_09042013_Efficiency_Candidates_bggen_PiMinus_Current.png|left|275px]] || [[Image:Mattione_Update_09042013_Efficiency_Candidates_bggen_PiMinus_Spiral.png|left|275px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_Candidates_bggen_PiMinus.png|left|275px]] || |
− | [[Image: | + | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_Candidates_bggen_PiMinus.png|left|275px]] |
|- | |- | ||
! Time-Based Tracks | ! Time-Based Tracks | ||
− | | [[Image: | + | | [[Image:Mattione_Update_09042013_Efficiency_TimeBased_bggen_PiMinus_Current.png|left|275px]] || [[Image:Mattione_Update_09042013_Efficiency_TimeBased_bggen_PiMinus_Spiral.png|left|275px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_TimeBased_bggen_PiMinus.png|left|275px]] || |
− | [[Image: | + | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_TimeBased_bggen_PiMinus.png|left|275px]] |
+ | |} | ||
+ | <br style="clear:both;"/> | ||
+ | |||
+ | === Proton === | ||
+ | [[Image:Mattione_Update_09042013_Thrown_Proton_bggen.png|left|450px|Thrown Proton'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 | ||
+ | !width="250"| Improvement - Zoomed | ||
+ | |- | ||
+ | ! Track Candidates | ||
+ | | [[Image:Mattione_Update_09042013_Efficiency_Candidates_bggen_Proton_Current.png|left|275px]] || [[Image:Mattione_Update_09042013_Efficiency_Candidates_bggen_Proton_Spiral.png|left|275px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_Candidates_bggen_Proton.png|left|275px]] || | ||
+ | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_Candidates_bggen_Proton.png|left|275px]] | ||
+ | |- | ||
+ | ! Time-Based Tracks | ||
+ | | [[Image:Mattione_Update_09042013_Efficiency_TimeBased_bggen_Proton_Current.png|left|275px]] || [[Image:Mattione_Update_09042013_Efficiency_TimeBased_bggen_Proton_Spiral.png|left|275px]] || [[Image:Mattione_Update_09042013_EfficiencyDiff_TimeBased_bggen_Proton.png|left|275px]] || | ||
+ | [[Image:Mattione_Update_09042013_EfficiencyDiffZoomed_TimeBased_bggen_Proton.png|left|275px]] | ||
|} | |} | ||
<br style="clear:both;"/> | <br style="clear:both;"/> | ||
== γp→K<sup>+</sup>K<sup>+</sup>Ξ<sup>-</sup> == | == γp→K<sup>+</sup>K<sup>+</sup>Ξ<sup>-</sup> == |
Revision as of 21:29, 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 the candidate 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 the candidate 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 | Improvement - Zoomed |
---|---|---|---|---|
Track Candidates | ||||
Time-Based Tracks |
γp→π+π+π-π-π0(p) (b1pi)
bggen (pythia)
- 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 with beam energies between 8.4 and 9 GeV
π-
Stage | Efficiency - Current Code | Efficiency - Spiral Code | Improvement | Improvement - Zoomed |
---|---|---|---|---|
Track Candidates | ||||
Time-Based Tracks |
Proton
Stage | Efficiency - Current Code | Efficiency - Spiral Code | Improvement | Improvement - Zoomed |
---|---|---|---|---|
Track Candidates | ||||
Time-Based Tracks |