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Plot approval: b-jet trigger. Viviana Cavaliere for the b- jet trigger group. Per-event PV estimation. In 2011 z of primary vertex was estimated within ROI Among the improvements available for the 2012 run there is “per-event primary vertex estimation ”

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plot approval b jet trigger

Plot approval: b-jet trigger

Viviana Cavaliere for the b- jet trigger group

per event pv estimation
Per-event PV estimation
  • In 2011 z of primary vertex was estimated within ROI
  • Among the improvements available for the 2012 run there is “per-event primary vertex estimation”
  • the tagger in 2012 exploits the IP along the z axis ⇒ this improvement directly affects the b-tagging performance
resolution on the primary vertex vs ntracks
Resolution on the primary vertex vsNtracks
  • Calculate the difference between the online PV (L2 or EF) and the truth vertex.
  • Fit the slices of tracks between -RMS and RMS
  • Plot mean vs Number of online tracks
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