1 / 30

New geometry calorimeter and Performance test

New geometry calorimeter and Performance test. VLCW06 Sim/Recon section July 21 2006 H.Ono, T.Yoshioka and GLDCAL, Acfa-Sim-J members. (C) Rei Hori. GLD Full Simulator Study. Cheated/Real PFA study was tested by old tower geometry last year.

mabli
Download Presentation

New geometry calorimeter and Performance test

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. New geometry calorimeterand Performance test VLCW06 Sim/Recon section July 21 2006 H.Ono, T.Yoshioka and GLDCAL, Acfa-Sim-J members GLD Full Simulator study (C) Rei Hori

  2. GLD Full Simulator Study • Cheated/Real PFA study was tested by old tower geometry last year. • Calorimeter baseline configuration was fixed as dodecagonal structure in DOD. • Realistic calorimeter geometry has implemented into GLD Full Simulator for realistic PFA study. • PFA = Particle Flow Algorithm based on the finely segmented calorimeter technique. GLD Full Simulator study

  3. Latest Design of GLD detector Muon detector and Calorimeter was fixed as dodecagonal shape Proposed in GLDDOD GLD Full Simulator study

  4. Previous geometry in Full Simulator • Muon detector was already installed as 12gon. • Calorimeter was still old configuration. Old tower structure r-f cut view Z cut view GLD Full Simulator study

  5. Calorimeter Geometry Update Geometry implementation was finished HCAL Tower structure Dodecagonal structure ECAL (12-gon) GLD Full Simulator study

  6. Tower Calorimeter Geometry HD CAL 130Layers: 6.1 0 • Parameter List • Endcap Inner R • = 40cm • Barrel Tower Front R • = 210cm • Endcap Tower Front R • = 270cm EM + HD Scinti. 2mm 12cm Divide 1212 Lead 8mm EM CAL 38Layers: 27X0 Scinti. 1mm 12cm Lead 4mm Divide 33 Tower Calorimeter GLD Full Simulator study

  7. New calorimeter geometry Active Layer Absorber Endcap y z Barrel x Cell size : 1x1, 2x2cm GLD Full Simulator study

  8. Calorimeter Layer new configuration (Previous configuration : Lead 4mm + Scintillator 1mm) 1mm : Readout space 5mm : Scintillator 1mm :Readout space 2mm : Scintillator 20mm : Lead 3mm : Tungsten 1mm : Readout space 1mm :Readout space 2mm : Scintillator 5mm : Scintillator 3mm : Tungsten 20mm : Lead EM : 33 Layers HD : 46 Layers EM/HD same segmentation Cell size : 1cmx1cm, 2cmx2cm … 1cmx1cm : Effective size of Strip CAL 2cmx2cm : Backup plan (Tile CAL) GLD Full Simulator study

  9. Detail of Calorimeter size Readout Line =10cm 349.4cm BarrelHD 229.8cm BarrelEM 210cm 270cm EndcapHD Barrel.InnerRadius=210cm EndcapEM Endcap.InnerRadius=40cm Barrel.HalfZ=280cm 419.4cm 280cm 299.8cm GLD Full Simulator study

  10. Basic Performance Test GLD Full Simulator study

  11. Linearity Measured Energy (GeV) Gamma for EM E=1.004*Ein K0L for HD E=1.049*Ein Beam Energy (GeV) Beam Energy (GeV) GLD Full Simulator study

  12. Energy Resolution /E /E Beam : Gamma Bean : K0L EM /E = 15.37% / Sqrt(E) HD /E = 47.3% / Sqrt(E) Beam Energy (GeV) Beam Energy (GeV) GLD Full Simulator study

  13. Theta dependence Energy vs cos CAL inner Material vs cos gamma 5GeV Gap between barrel and endcap exist as a readout space (10cm) GLD Full Simulator study

  14. PFA study GLD Full Simulator study

  15. Previous Geometry Event Display Previous geometry EM : 4cmx4cm HD : 12cmx12cm Zqq (2jets) sqrt(s)=91.2 GeV red : pion gray : kaon0L yellow : photon cyan : neutron purple : electron blue : muon GLD Full Simulator study

  16. Typical Event Display Current 1cmx1cm Zqq (2jets) sqrt(s)=91.2 GeV red : pion gray : kaon0L yellow : photon cyan : neutron purple : electron blue : muon GLD Full Simulator study

  17. Cheated Method Analysis(Perfect clustering) Cheated PFA is a cheating version of PFA. Use virtual position information (TPC outer) It can be achieved infinite segmentation. M1/M2 : 2jets mass 30% Can be separated even though same cell hits. Cluster 1 Cluster 2 Z-->uds (91.2 GeV) Virtual layer for tagging Mother particle ID GLD Full Simulator study

  18.  reconstruction test 0 10 GeV event 2 photon, barrel only event was selected Entries 0 Mass (GeV) 0 Mass (GeV) Cheated method with infinite segmentation Cheated method with actural(1cmx1cm) segmentation GLD Full Simulator study

  19. Tower Geometry Performance M1/M2 : 2jets mass 30% 60% Realistic PFA Calorimeter only Tohoku : T.Fujikawa GLD Full Simulator study

  20. New Calorimeter PFA Performance PFA scheme, parameters use as same as previous one. Preliminary result! GLD Full Simulator study

  21. Optimization of PFA M1/M2 : 2jets mass We need parameter optimization for New geometry calorimeter. • Optimize Calibration constant, theta dependence, energy dependence etc. • Optimize several parameters for better PID purity and efficiency. • Likelihood method for optimization. • Yoshioka-san’s talk. 30% 60% GLD Full Simulator study

  22. Remaining Tasks M1/M2 : 2jets mass • Cell to Strip combine method for strip structure study should be prepared in analysis part (Next step). • Strip calorimeter performance study • Install strip clustering method into current realistic clustering scheme. • Hayashi-san (Kobe) study this part. 30% 60% GLD Full Simulator study

  23. Appendix GLD Full Simulator study

  24. Particle Flow Algorithm (PFA) Contribution of Jet Energy Charged : 65%, g : 25%, Neutral Hadron :9% Jet energy measured by • Charged : Tracker (dP/P = 10-4~10-5 P) • Photon : EM calorimeter • Neutral hadron : EM/HAD calorimeter GLD Full Simulator study

  25. Analysis flow of GLD-PFA(Realistic Clustering) M1/M2 : 2jets mass • MIP finding (Find interaction layer) • Muon finding (Not yet implemented) • Small clustering and Gamma finding -- Separate Gammas and Charged tracks. • Electron finding (Not yet implemented) • Track Cluster Matching -- Separate Charged particle and Neutral Hadrons. • Neutral Hadron Clustering • Satellite Hits Finding 30% 60% GLD Full Simulator study

  26. PID in Detectors VTX Tracker ECAL HCAL Muon electron photon charged hadron muon neutral hadron GLD Full Simulator study

  27. Z->uds 350GeV Event Display Zuds sqrt(s) =350GeV red : pion gray : kaon0L yellow : photon cyan : neutron purple : electron blue : muon GLD Full Simulator study

  28. Material in Full Simulator GLD Full Simulator study

  29. New GLD geometry design GLD Full Simulator study

  30. Latest Geometry in Full Simulator 12-gon structure CAL : EM/HD, Barrel/Endcap Structure GLD Full Simulator study

More Related