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- Use pattern recognition in addition to GEANT model to determine which tiles and ribbons to associate with tracks
- This allows us to handle near misses, which is needed to do efficiency studies
- More detailed description of pattern recognition technique is here
- Have information be associated with tracks, instead of having a single big set for the whole event
- This makes using the event display much easier
- This makes getting access to information in Recon root files easier
- More information about new ACD recon data structures is here
- Handle track errors correctly
- This wasn't being done before
- This looks nice in the event display
- More information about error propagation is here
- Sort ACD - track associations by a combined signal size/ distance quality measure instead of using only distance
- This gets rid of problems with shadowing, where one association with a small signal masked another nearby one with a larger signal
- More information about quality measures is here
- Always calculate gaps to tiles
- Before this was a hodge podge, we had to handle cases where the track hit ribbons, tiles and missed everything differently.
- More information about how we treat gaps is here
- Sort gaps by the probability that the track went into the gap, including the size of the gap and the error projection
- Before gaps were sorted only by the distance to the gap
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Effects on background rejection
| Wiki Markup |
|---|
\[ Here\|ACD Recon update, effects on background rejection\] is a page that describes so efforts to use the new variables to do background |
rejection. |
Improvements to event display
Here is a page that describes how this information is visualized in the event display.
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Variable | Plot | |||
|---|---|---|---|---|
Acd Tile Count (also AcdNoRow3Readout): | | |||
AcdRibbonCount: | | |||
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="3166131861ff72ab-c8525913-4bf143ad-bd42bc12-c051ce9998eb79dd08999f71"><ac:plain-text-body><![CDATA[ | AcdTileEnergy (also AcdEnergyTop, AcdEnergyRow[0-3]): | !AcdTotalEnergy.gif | thumbnail! | ]]></ac:plain-text-body></ac:structured-macro> |
AcdRibbonEnergy: | | |||
AcdCornerDoca: | | |||
AcdTkr1CornerDoca: | |
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Variable | Plot | |||
|---|---|---|---|---|
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="dbd4d337dd4e0f6d-e0e88455-48244f89-a1c7b0f0-2e0541f1402341853a1bf9e5"><ac:plain-text-body><![CDATA[ | AcdNoTop (and AcdNoSideRow[0-3]): | !AcdNoTop.gif | thumbnail! | ]]></ac:plain-text-body></ac:structured-macro> |
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Variable | Plots | Comments | ||
|---|---|---|---|---|
AcdTrk1RibbonActDist | | Combination of two effects:
| ||
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="5288a24ba3a78d6a-b1e347dd-4b8f4fab-b08bad16-71d32eedc0b0df46e6b8cf9c"><ac:plain-text-body><![CDATA[ | AcdTrk1RibbonActEnergyPmtA[B] | !AcdRibbonActEnergyPmtA.gif | thumbnail! | Combination of two effectos:]]></ac:plain-text-body></ac:structured-macro>
|
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Variable | Plot | Comment | |||
|---|---|---|---|---|---|
AcdRibbonActDist | |
| |||
<ac:structured-macro ac:name="unmigrated-wiki-markup" ac:schema-version="1" ac:macro-id="c0c95a43e45ce5c3-e4b477ee-47de-a049b464-88386880396d43f725609b3f"><ac:plain-text-body><![CDATA[ | AcdRibbonActEnergyPmtA[B] | !AcdRibbonActEnergyPmtA.gif | thumbnail! |
| ]]></ac:plain-text-body></ac:structured-macro> |
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