| Tracklets
to measure dN/dh |
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| • | Tracklets
are 3-point tracks |
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| • | Vertex +
2 planes in SPEC, VTX |
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| • | Quality
controlled by cuts in |
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| • | Pseudorapidity
residual: dh |
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| • | Azimuthal
angle residual: df |
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| • | Good
efficiency |
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| • | Reduced
sensitivity |
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| • | Non-vertex
backgrounds |
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| • | Strangeness
/ gamma conversion |
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