TWiki> LHCb Web>LHCbComputing>LHCbTracking>LHCbTrackingEfficiencies>TrackingEffStatus (2018-01-15, LuciaGrillo) EditAttachPDF

Status / Results

The results below correspond to these data samples.

2010 Results

Velo efficiency versus eta 2010 T station efficiency versus eta 2010 Combined efficiency versus eta 2010
Velo_effVsEta2010.png Tstation_effVsEta2010.png effVsEta2010.png

Velo efficiency versus p 2010 T station efficiency versus p 2010 Combined efficiency versus p 2010
Velo_effVsP2010.png Tstation_effVsP2010.png effVsP2010.png

Velo efficiency ratio (Data/MC) T station efficiency ratio (Data/MC) Combined efficiency ratio (Data/MC)
Velo_ratio2010.png Tstation_ratio2010.png ratio2010.png

2011 Results

Velo efficiency versus eta 2011 T station efficiency versus eta 2011 Combined efficiency versus eta 2011
Velo_effVsEta2011.png Tstation_effVsEta2011.png effVsEta2011.png

Velo efficiency versus p 2011Sorted ascending T station efficiency versus p 2011 Combined efficiency versus p 2011
Velo_effVsP2011.png Tstation_effVsP2011.png effVsP2011.png

Velo efficiency vs # best tracks 2011 T station efficiency vs # best tracks 2011 Combined efficiency vs # best tracks 2011
Velo_effVstrackmult2011.png Tstation_effVstrackmult2011.png effVsMult2011.png

Velo efficiency versus nPV 2011 T station efficiency versus nPV 2011 Combined efficiency versus nPV 2011
Velo_effVsnpv2011.png Tstation_effVsnpv2011.png effVsNPV2011.png

Velo efficiency ratio (Data/MC) T station efficiency ratio (Data/MC) Combined efficiency ratio (Data/MC)
Velo_ratio2011.png Tstation_ratio2011.png ratio2011.png

Overall efficiency ratio and its error

  • Overall combined efficiency ratio and error (per long track). This number depends on the p-eta spectrum observed in the weighted MC. Below are three examples:
    • Eta-p spectrum for legs from Velo efficiency method. The total efficiency ratio for this spectrum is:
      • 2010 data:
      • 2011 data: .
        eta_p_JpsiVeloMuon.png
    • Spectrum for . The total efficiency ratio for this spectrum is
      • 2010 data:
      • 2011 data: .
        eta_p_BsJpsiPhi.png
    • Spectrum for . The total efficiency ratio for this spectrum is
      • 2010 data:
      • 2011 data: .

Systematic error

Source of uncertainty Error
Apply different reweighting 0.3% (Velo) 0.2% (T station)
Sideband subtraction vs full mass fit 0.2% (Velo) 0.3% (T station)
Combined method vs Long track eff 0.5 %
Overall uncertainty 0.7 %

High-pT tracks (for EW analyses)

The status (twiki) for the tracking efficiency measurement for the Z and W cross section measurements with MuonTT tracks can be seen here

-- JeroenVanTilburg - 08-Jul-2011

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I Attachment History Action Size Date Who Comment
PNGpng Tstation_effVsEta2010.png r5 r4 r3 r2 r1 manage 7.5 K 2011-07-12 - 09:40 JeroenVanTilburg T station efficiency versus eta 2010
PNGpng Tstation_effVsEta2011.png r3 r2 r1 manage 7.4 K 2011-07-12 - 09:40 JeroenVanTilburg T station efficiency versus eta 2011
PNGpng Tstation_effVsP2010.png r5 r4 r3 r2 r1 manage 8.3 K 2011-07-12 - 09:41 JeroenVanTilburg T station efficiency vs p 2010
PNGpng Tstation_effVsP2011.png r4 r3 r2 r1 manage 8.2 K 2011-07-12 - 09:41 JeroenVanTilburg T station efficiency vs p 2011
PNGpng Tstation_effVsnpv2011.png r4 r3 r2 r1 manage 10.3 K 2011-07-11 - 09:26 JeroenVanTilburg T station efficiency versus nPV 2011
PNGpng Tstation_effVstrackmult2011.png r3 r2 r1 manage 10.7 K 2011-07-11 - 09:27 JeroenVanTilburg T station efficiency versus number of best tracks 2011
PNGpng Tstation_ratio2010.png r6 r5 r4 r3 r2 manage 11.9 K 2011-07-12 - 10:07 JeroenVanTilburg T station efficiency ratio 2010
PNGpng Tstation_ratio2011.png r6 r5 r4 r3 r2 manage 12.1 K 2011-07-12 - 10:08 JeroenVanTilburg T station efficiency ratio 2011
PNGpng Velo_effVsEta2010.png r5 r4 r3 r2 r1 manage 7.3 K 2011-07-12 - 09:42 JeroenVanTilburg Velo efficiency versus eta
PNGpng Velo_effVsEta2011.png r5 r4 r3 r2 r1 manage 7.3 K 2011-07-12 - 09:42 JeroenVanTilburg Velo efficiency versus eta (2011)
PNGpng Velo_effVsP2010.png r5 r4 r3 r2 r1 manage 8.2 K 2011-07-12 - 09:43 JeroenVanTilburg Velo efficiency vs p 2010
PNGpng Velo_effVsP2011.png r5 r4 r3 r2 r1 manage 8.0 K 2011-07-12 - 09:43 JeroenVanTilburg Velo efficiency vs p 2011
PNGpng Velo_effVsnpv2011.png r4 r3 r2 r1 manage 10.2 K 2011-07-28 - 16:29 JeroenVanTilburg Velo efficiency versus nPV 2011
PNGpng Velo_effVstrackmult2011.png r4 r3 r2 r1 manage 10.5 K 2011-07-28 - 16:31 JeroenVanTilburg Velo efficiency versus number of best tracks 2011
PNGpng Velo_ratio2010.png r5 r4 r3 r2 r1 manage 11.3 K 2011-07-12 - 10:08 JeroenVanTilburg Velo efficiency ratio 2010
PNGpng Velo_ratio2011.png r5 r4 r3 r2 r1 manage 13.3 K 2011-07-12 - 10:09 JeroenVanTilburg Velo ratio efficiency 2011
PNGpng effVsEta2010.png r6 r5 r4 r3 r2 manage 7.6 K 2011-07-12 - 09:44 JeroenVanTilburg Combined efficiency versus eta 2010
PNGpng effVsEta2011.png r6 r5 r4 r3 r2 manage 7.5 K 2011-07-12 - 09:44 JeroenVanTilburg Combined efficiency versus eta 2011
PNGpng effVsMult2011.png r5 r4 r3 r2 r1 manage 11.5 K 2011-07-28 - 16:31 JeroenVanTilburg Combined efficiency vs best track multiplicity 2011
PNGpng effVsNPV2011.png r4 r3 r2 r1 manage 10.6 K 2011-07-28 - 16:30 JeroenVanTilburg Combined efficiency vs NPV 2011
PNGpng effVsP2010.png r6 r5 r4 r3 r2 manage 8.4 K 2011-07-12 - 09:44 JeroenVanTilburg Combined efficiency versus p 2010
PNGpng effVsP2011.png r6 r5 r4 r3 r2 manage 8.3 K 2011-07-12 - 09:45 JeroenVanTilburg Combined efficiency versus p 2011
PNGpng eta_p_BsJpsiPhi.png r1 manage 52.3 K 2011-06-23 - 12:32 JeroenVanTilburg Eta-p spectrum for all tracks from Bs->Jpsi phi
PNGpng eta_p_JpsiVeloMuon.png r1 manage 39.7 K 2011-06-23 - 12:32 JeroenVanTilburg Eta-p spectrum for Jpsi legs from Velo-muon method
PNGpng ratio2010.png r7 r6 r5 r4 r3 manage 12.6 K 2011-07-12 - 10:09 JeroenVanTilburg Combined efficiency ratio 2010
PNGpng ratio2011.png r7 r6 r5 r4 r3 manage 11.8 K 2011-07-12 - 10:09 JeroenVanTilburg Combined efficiency ratio 2011
PNGpng tStaEffvsMult.png r1 manage 19.3 K 2011-06-24 - 14:33 JeroenVanTilburg T station efficiency versus best track multiplicity
PNGpng veloEffvsMult.png r1 manage 20.9 K 2011-06-24 - 14:33 JeroenVanTilburg Velo efficiency versus best track multiplicity
PNGpng veloEffvsNPV.png r1 manage 21.5 K 2011-06-24 - 14:34 JeroenVanTilburg Velo efficiency versus nPV
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Topic revision: r26 - 2018-01-15 - LuciaGrillo
 
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