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Top Physics Validation: 14.1.0 Reconstruction, Simulation and Bytestream

Top Physics Validation: 14.1.0 Reconstruction, Simulation and Bytestream. Paul S Miyagawa The University of Manchester. Reconstruction 14.1.0.1 vs 14.0.0.1. Objective Check 14.1.0 reconstruction AOD Datasets (Run 5200 ttbar) valid1.005200.T1_McAtNlo_Jimmy.recon.AOD. e322_s412_r421

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Top Physics Validation: 14.1.0 Reconstruction, Simulation and Bytestream

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  1. Top Physics Validation:14.1.0 Reconstruction, Simulation and Bytestream Paul S Miyagawa The University of Manchester

  2. Reconstruction 14.1.0.1 vs 14.0.0.1 • Objective • Check 14.1.0 reconstruction • AOD Datasets (Run 5200 ttbar) • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD. e322_s412_r421 • Reco 14.1.0.1; 48k events • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD.e322_s412_r386 (reference) • Reco 14.0.0.1; 28k events • Plots in Appendix A: 14.1.0 Reco vs 14.0.0 Reco • Plots show no difference • Electrons, muons, jets, b-jets, fake jets, missing Et • See web pages for more plots • http://www.hep.manchester.ac.uk/atlas/TopMC/TopMCvalidation.html Physics validation meeting, 16 May 2008

  3. Simulation 14.1.0.1 vs 13.0.40.4 • Objective • Check 14.1.0 simulation • AOD Datasets (Run 5200 ttbar) • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD. e322_s429_r426 • Sim 14.1.0.1, CSC-05-00-00; 48k events • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD.e322_s412_r421 (reference) • Sim 13.0.40.4, CSC-02-01-00; 48k events • Plots in Appendix B: 14.1.0 Sim vs 14.0.0 Sim • Plots show minor differences • Electrons, muons, jets, b-jets, fake jets, missing Et • See web pages for more plots • http://www.hep.manchester.ac.uk/atlas/TopMC/TopMCvalidation.html Physics validation meeting, 16 May 2008

  4. Simulation 14.1.0.1 vs 13.0.40.4 Electrons (3) Phi resolution worse? More candidates due to backtracking? Physics validation meeting, 16 May 2008

  5. Simulation 14.1.0.1 vs 13.0.40.4 b-jets (2) Reconstruction efficiency slightly lower? Physics validation meeting, 16 May 2008

  6. 14.1.0.1 BS  AOD vs RDO  AOD • Objective • Check 14.1.0 bytestream reconstruction • AOD Datasets (Run 5200 ttbar) • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD. e322_s413_b30_r423 • RDO  BS 13.0.40.5, BS  AOD 14.1.0.1, old LAr digi; 11.5k events • valid1.005200.T1_McAtNlo_Jimmy.recon.AOD.e322_s412_r421 (reference) • Direct RDO  AOD 14.1.0.1, new LAr digi; 48k events • Plots in Appendix C: BS  AOD vs RDO  AOD • Muons missing in central region • Electrons, jets, b-jets, missing Et look fine • See web pages for more plots • http://www.hep.manchester.ac.uk/atlas/TopMC/TopMCvalidation.html Physics validation meeting, 16 May 2008

  7. 14.1.0.1 BS vs RDO Muons Staco muons, Pt > 10 GeV Related to missing barrel TRT photons? Follow-up, 16 April 2008

  8. Conclusions • Reconstruction in 14.1.0.1 (R13 sim + digi) shows no differences with 14.0.0.1 • Simulation in 14.1.0.1 shows minor differences with 13.0.40.4 • More electron candidates, probably due to backtracking • Medium IsEM cut removes the extra candidates • Phi resolution of electrons slightly worse? • Reconstruction efficiency of b-jets slightly worse? • Bytestream reconstruction in 14.1.0.1 missing muons in barrel region • Possibly related to missing barrel TRT photons? Physics validation meeting, 16 May 2008

  9. Appendix A:Reconstruction in 14.1.0.1

  10. Reconstruction 14.1.0.1 vs 14.0.0.1 Electrons (1) Medium IsEM cut Et > 20 GeV Matched to e from W decay Physics validation meeting, 16 May 2008

  11. Reconstruction 14.1.0.1 vs 14.0.0.1 Electrons (2) Physics validation meeting, 16 May 2008

  12. Reconstruction 14.1.0.1 vs 14.0.0.1 Electrons (3) Physics validation meeting, 16 May 2008

  13. Reconstruction 14.1.0.1 vs 14.0.0.1 Muons (1) Staco muons Pt > 10 GeV Matched to μ from W decay Physics validation meeting, 16 May 2008

  14. Reconstruction 14.1.0.1 vs 14.0.0.1 Muons (2) Physics validation meeting, 16 May 2008

  15. Reconstruction 14.1.0.1 vs 14.0.0.1 Muons (3) Physics validation meeting, 16 May 2008

  16. Reconstruction 14.1.0.1 vs 14.0.0.1 Jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 Matched to quark from W or t decay Physics validation meeting, 16 May 2008

  17. Reconstruction 14.1.0.1 vs 14.0.0.1 Jets (2) Physics validation meeting, 16 May 2008

  18. Reconstruction 14.1.0.1 vs 14.0.0.1 Jets (3) Physics validation meeting, 16 May 2008

  19. Reconstruction 14.1.0.1 vs 14.0.0.1 b-jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 b-tag weight ≥ 7.05 Matched to b quark from t decay Physics validation meeting, 16 May 2008

  20. Reconstruction 14.1.0.1 vs 14.0.0.1 b-jets (2) Physics validation meeting, 16 May 2008

  21. Reconstruction 14.1.0.1 vs 14.0.0.1 b-jets (3) Physics validation meeting, 16 May 2008

  22. Reconstruction 14.1.0.1 vs 14.0.0.1 fake jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 Not matched to quark from W or t decay Physics validation meeting, 16 May 2008

  23. Reconstruction 14.1.0.1 vs 14.0.0.1 fake jets (2) Physics validation meeting, 16 May 2008

  24. Reconstruction 14.1.0.1 vs 14.0.0.1 Missing Et Physics validation meeting, 16 May 2008

  25. Appendix B:Simulation in 14.1.0.1

  26. Simulation 14.1.0.1 vs 13.0.40.4 Electrons (1) Medium IsEM cut Et > 20 GeV Matched to e from W decay Physics validation meeting, 16 May 2008

  27. Simulation 14.1.0.1 vs 13.0.40.4 Electrons (2) Physics validation meeting, 16 May 2008

  28. Simulation 14.1.0.1 vs 13.0.40.4 Muons (1) Staco muons Pt > 10 GeV Matched to μ from W decay Physics validation meeting, 16 May 2008

  29. Simulation 14.1.0.1 vs 13.0.40.4 Muons (2) Physics validation meeting, 16 May 2008

  30. Simulation 14.1.0.1 vs 13.0.40.4 Muons (3) Physics validation meeting, 16 May 2008

  31. Simulation 14.1.0.1 vs 13.0.40.4 Jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 Matched to quark from W or t decay Physics validation meeting, 16 May 2008

  32. Simulation 14.1.0.1 vs 13.0.40.4 Jets (2) Physics validation meeting, 16 May 2008

  33. Simulation 14.1.0.1 vs 13.0.40.4 Jets (3) Physics validation meeting, 16 May 2008

  34. Simulation 14.1.0.1 vs 13.0.40.4 b-jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 b-tag weight ≥ 7.05 Matched to b quark from t decay Physics validation meeting, 16 May 2008

  35. Simulation 14.1.0.1 vs 13.0.40.4 b-jets (3) Physics validation meeting, 16 May 2008

  36. Simulation 14.1.0.1 vs 13.0.40.4 fake jets (1) Cone4 tower jets Pt > 40 GeV |η| < 2.5 Not matched to quark from W or t decay Physics validation meeting, 16 May 2008

  37. Simulation 14.1.0.1 vs 13.0.40.4 fake jets (2) Physics validation meeting, 16 May 2008

  38. Simulation 14.1.0.1 vs 13.0.40.4 Missing Et Physics validation meeting, 16 May 2008

  39. Appendix C:Bytestream in 14.1.0.1

  40. 14.1.0.1 BS vs RDO Electrons Medium IsEM cut, Et > 20 GeV Follow-up, 16 April 2008

  41. 14.1.0.1 BS vs RDO Jets Cone4 tower jets, Et > 40 GeV, |η| < 2.5 Follow-up, 16 April 2008

  42. 14.1.0.1 BS vs RDO b-jets Cone4 tower jets, Et > 40 GeV, |η| < 2.5, b-tag weight ≥ 7.05 Follow-up, 16 April 2008

  43. 14.1.0.1 BS vs RDO Missing Et Follow-up, 16 April 2008

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