Difference between revisions of "Mattione Update 08212013"
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+ | == Summary == | ||
+ | * Wrote new CDC Track Candidate code to try to do a better job of reconstructing low-momentum track spirals. | ||
+ | * Currently debugging/testing, extremely preliminary results are below. | ||
+ | |||
== Track Candidate Reconstruction Sampling == | == Track Candidate Reconstruction Sampling == | ||
* All events have one π<sup>+</sup> thrown at p = 150 MeV/c, θ = 90 degrees, φ = random. | * All events have one π<sup>+</sup> thrown at p = 150 MeV/c, θ = 90 degrees, φ = random. |
Revision as of 11:51, 21 August 2013
Contents
Summary
- Wrote new CDC Track Candidate code to try to do a better job of reconstructing low-momentum track spirals.
- Currently debugging/testing, extremely preliminary results are below.
Track Candidate Reconstruction Sampling
- All events have one π+ thrown at p = 150 MeV/c, θ = 90 degrees, φ = random.
- Note: When tracks are drawn, energy loss is not taken into account.
Event # | Truth Hits | Reconstructed Hits | Current (08/20/13) Code Track Candidates | Spiral Code Track Candidates | # Candidates: Current / Spiral |
---|---|---|---|---|---|
Event 1 | 4 / 2 (extra in spiral is NaN) | ||||
Event 2 | 4 / 1 | ||||
Event 3 | 8 / 1 | ||||
Event 17 | 9 / 1 |
Performance
- 1000 events, all with one π+ thrown at p = 150 MeV/c, θ = 90 degrees, φ = random.
Multiplicity
- # Track Candidates
- # Time-Based Tracks (with PID = π+)
- Average Event Reconstruction Rate:
- Current (08/20/13) Code: 7.5Hz
- Spiral Code: 17.5Hz
Accuracy
- Track Candidates: Δp/p
- Track Candidates: Δθ
- Track Candidates: Δφ
- Track Candidates: ΔVertex-Z
- % of events with at least one track that is "roughly close" to the thrown parameters:
- "Roughly Close": p within 20%, θ within 15 degrees, φ within 30 degrees, Vertex-Z within 10cm
Stage | Current (08/20/13) Code | Spiral Code |
---|---|---|
Track Candidates | 28.9% | 33.0% |
Time-Based Tracks | 5.7% | 5.8% |