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Electron Reconstruction through OpEmuRec Collaboration meeting 22/09/10

Electron Reconstruction through OpEmuRec Collaboration meeting 22/09/10. Florian Brunet. MC production Reconstruction tool : OpEmuRec – Fedra Outlook. MC production. Beamfiles from ccali (Lyon) MC Production through OpRelease 3.2 software OpSim

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Electron Reconstruction through OpEmuRec Collaboration meeting 22/09/10

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  1. Electron Reconstruction throughOpEmuRecCollaboration meeting 22/09/10 Florian Brunet

  2. MC production • Reconstruction tool : OpEmuRec – Fedra • Outlook

  3. MC production • Beamfilesfromccali (Lyon) • MC Production throughOpRelease 3.2 software • OpSim • OpDigit : no microtrackefficiency, no disalignmentbetween plates • OpEmuIO : no scanning efficiency • Statistics : electron 1000 events

  4. Reconstruction tool • OpEmuRec : • Fedralinking • Fedraalignment : not necessary but useful for software robustness • Fedratracking : nsegmin=2, ngap=3 • FedraVertexing : ProbMin=0.0001,dz=3000μm, IPmax=100μm • Fedrashowering : nplatemin=4, ngap=3, cone 0.020 mrd & 800 μm

  5. EmShower reconstruction algorithm • For each BT candidate, we look for anyothercorresponding BT accordingangular and spatial criteria : • BT downstreamwrt BT candidate • δr < 150μm , δr = r(BT) – r(BTcand) = distance in transverse plane • δθ < 150 mrad, δθ3D = θ3D(BT) – θ3D(BTcand) • BT isinside a conedefinedwrt BT candidate • Showerspropagatethroughat least 4 plates

  6. Simulation parameters • 1000 electrons • 10 GeVEnergy • Interaction point : 1st plate in the middle of the brick • Propagation through the whole brick : 57 plates • No incident angle

  7. Reconstruction & analysisparameters • We use as defaut setting a conewith radius of 800μm and then 1200μm. • All reconstructedshowerswrt the mostenergeticshower per event and the showerwhichcontains the largestamount of BT

  8. Cone radius 800μm & 1200μm for all showers

  9. Cone radius 800μm & 1200μm for all showers

  10. Cone radius 800μm & 1200μm for the most energetic showers

  11. Cone radius 800μm & 1200μm for the most energetic showers

  12. Cone radius 800μm & 1200μm for the maximum BT number showers

  13. Cone radius 800μm & 1200μm for the maximum BT number showers

  14. All showers & selectedshowerswrtenergy & number of BT

  15. All showers & selectedshowerswrtenergy & number of BT

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