Increasing SVT efficiency
It is has become a general request, but vague.
- Clear statements are welcome: When ? How much ? Why ?
Two sources for inefficiency:
- incomplete pattern coverage (AM has a finite size)
- SVX single layer efficiency: 0.9 ~0.95
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Two basic rules agreeded upon at the workshop:
- we do not deal with 3-hit tracks
- if a track has 5 hits, use only 4 in the fit
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Solution: require 4/5 SVX layers
- two methods possible (details spared )
- detailed comparison in progress to pick best approach (not hardwired anyhow)