Difference between revisions of "Mattione Update 05072012"
From GlueXWiki
(→Reconstruction Efficiencies) |
(→Single-Track Event Reconstruction Efficiencies) |
||
Line 40: | Line 40: | ||
== Single-Track Event Reconstruction Efficiencies == | == Single-Track Event Reconstruction Efficiencies == | ||
− | === π<sup>+</sup>'s | + | === Overall === |
+ | {| class="wikitable" | ||
+ | | [[Image:Mattione_Update_05072012_TrackReconstructionEfficiency_Overall_PiPlus_SpiralCode.gif|thumb|left|350px|05/07/12 Spiral Code - π<sup>+</sup>'s]] | ||
+ | | [[Image:Mattione_Update_05072012_TrackReconstructionEfficiency_Overall_Proton_SpiralCode.gif|thumb|left|350px|05/07/12 Spiral Code - Protons]] | ||
+ | |} | ||
+ | === π<sup>+</sup>'s by Stage === | ||
* Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered. | * Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered. | ||
{| class="wikitable" | {| class="wikitable" | ||
Line 49: | Line 54: | ||
|} | |} | ||
− | === Protons === | + | === Protons by Stage === |
* Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered. | * Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered. |
Revision as of 11:05, 7 May 2012
Contents
Track Candidate Reconstruction Sampling
- All events have one π+ thrown at p = 150 MeV/c, θ = 90 degrees, φ = random.
- These are identical to those presented at the 04/25/2012 Tracking Software meeting.
Event # | Hits (CDC & Truth) | Current (04/08/12) Code Track Candidates | Spiral Code Track Candidates |
---|---|---|---|
Event 1 | |||
Event 2 | |||
Event 3 | |||
Event 294 |
# Reconstructed Tracks
- Improvements from last time (04/25/2012):
- Changed track candidate algorithm structure (removes memory explosion & slow reconstruction): Decreased %events with no track candidates from ~12% to ~4%.
- Upgraded to newest Kalman Filter code (includes fix for broken tracks) (also decreased minimum pion momentum from 150 to 50 MeV/c): Decreased %events with no time-based tracks from ~75% to ~45%.
- Truncated track stepping once track turns back inwards towards the target (Δr < 0.0 bounds check in DTrackFitterKalmanSIMD::SetCDCReferenceTrajectory()): Decreased %events with no time-based tracks from ~45% to ~28%.
- Note: no changes have been checked into svn yet.
- # Reconstructed Tracks / Event:
- NOTE: Hit selectors disabled for wire based & time based fits, except for "SVN Code": instead use hits from track candidates (and ignore hits after spiral turn back inwards)
Single-Track Event Reconstruction Efficiencies
Overall
π+'s by Stage
- Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered.
Protons by Stage
- Note: To calculate the efficiency for each stage (wire-based, time-based), only events that pass the previous stage (candidate, wire-based) are considered.