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Track Reconstruction |
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Track Finding uses M.Ronan’s (TPC)
pattern finding |
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Tuned for Large + Small detector |
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Track Fitters: |
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SLD Weight Matrix Fitter |
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Kalman Filter coming soon |
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Fortran not Java, will need native
library for each platform |
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Can do Single Detector or Combined fit
(e.g. VTX+TPC) |
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Hit Smearing/Efficiency (since Gismo
gives “perfect” hits) |
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Random Background overlay |
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What’s still needed |
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More Track Finding Algorithms (Cheater,
Projective Geometry) |
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End Cap tracking |
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Three Clustering Algorithms Currently
Implemented |
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Cluster Cheater (uses MC truth to
“cheat”) |
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Simple Cluster Builder (Touching Cells) |
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Radial Cluster Builder |
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All algorithms tend to produce many
very low energy clusters - important to set sensible thresholds |
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Still Needed - Cluster Refinement Stage |
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Combine HAD + EM clusters |
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Endcap + Barrel overlap region |
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In Progress - Track Cluster Association |
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Initial Implementation Done by Mike
Ronan |
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Output Format defined by Gary Bower |
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Need to Extend Definition of Clusters |
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Directionality, Entry point to
calorimeter |
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Ron Cassell working on Standard Test
Suite |
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Simulation first, then recon |
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Gary bower working on interface to
Guinea Pig |
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Should give ability to work with real
background overlays |
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New version of Kalman Filter from Rob
Kutschke |
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Received November 2, not looked at yet. |
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Not much progress since SLAC meeting in
August |
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Nic Sinev now working on BaBar |
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Mike Ronan working on
analysis/track-cluster association |
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Finish integration of MCFast Kalman
filter |
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Support for merging signal/backgrounds
(Gary Bower) |
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Additional Track Finders (projective,
“cheater”) |
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Improved Cluster Description |
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Track/Cluster Association |
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Cluster Refinement |
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Vertex Finding code (based on ZVTop?) |
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WIRED Event Display |
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Support for SIO format reading/writing
(Tony Waite) |
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Switch to XML based geometry
description |
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Small Angle Tracking |
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Reference Analyses (in progress Ron
Cassell) |
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Currently producing new set of data |
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Incorporates all known Gismo bug fixes |
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Still using S1 and L1 detectors |
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10,000 tt events for Small, Large done
(at Penn) |
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More coming soon |
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Tony Waite has new release of Gismo
available for download: |
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All known gismo bug fixes |
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Built using DEC code management system |
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Guinea pigs trying it out at (Penn,
Michigan, Colorado) |
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