October 20th, 2006 A. Mazzacane 1 4 th Concept Software First Results.
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October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 11
4th Concept Software
First Results
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 22
ILCroot flow controlILCroot flow control
Initialization
Eventgeneration
Particletransport Hits
Summable Digits
EventmergingDigitsClusters
Tracking PID ESD Analysis
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 33
ILCroot persistent objectsILCroot persistent objects
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 44
Status of ILCroot: GeneratorsStatus of ILCroot: Generators(A. Mazzacane)(A. Mazzacane)
Two more classes added to read files from Two more classes added to read files from external generator (like Pandora-Pythia) external generator (like Pandora-Pythia) Stdhep formatStdhep formatText formatText format
Pandora-Pythia currently used to generate Pandora-Pythia currently used to generate events for testing the detectorsevents for testing the detectors
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 55
Status of ILCroot: VXDStatus of ILCroot: VXD(A.Mazzacane D. Barbareschi)(A.Mazzacane D. Barbareschi)
Add new class to read gdml geometry Add new class to read gdml geometry formatformat
different version of SiD VXD:different version of SiD VXD:cilindricalcilindrical in ladder (only barrel, endcaps ready soon)in ladder (only barrel, endcaps ready soon)
sid00 -> sidmay06sid00 -> sidmay06
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 66
Status of ILCroot: VXDStatus of ILCroot: VXD
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 77
Status of ILCroot: VXDStatus of ILCroot: VXD
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 88
Status of ILCroot: VXDStatus of ILCroot: VXD
3 technologies already present in ILCroot code:
•Silicon Pixel Detectors (SPD)
•Silicon Drift Detectors (SDD)
•Silicon Strip Detectors (SSD)
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 99
Status of ILCroot: TPCStatus of ILCroot: TPC
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1010
Status of ILCroot: TrackingStatus of ILCroot: Tracking(F. Ignatov)(F. Ignatov)
Primary seeding: looks for track with hits 20 layers apart + Primary seeding: looks for track with hits 20 layers apart + beam constraintbeam constraint
Secondary seeding: looks for tracks with hits in layer 1, 4 Secondary seeding: looks for tracks with hits in layer 1, 4 and 7 (no beam constraint)and 7 (no beam constraint)
Full Kalman filter then initiatedFull Kalman filter then initiated 1st step: start from TPC fit + prolongation to VXD (add clusters 1st step: start from TPC fit + prolongation to VXD (add clusters
there)there) 2st step: start from VXD, refit trough TPC + prolongation to MUD2st step: start from VXD, refit trough TPC + prolongation to MUD 3st step: start from MUD and refit inword with TPC + VXD3st step: start from MUD and refit inword with TPC + VXD
Final step: isolated tracks in VXD and in MUD (not used at Final step: isolated tracks in VXD and in MUD (not used at present)present)
Kinks and V0 fitted during the Kalman filteringKinks and V0 fitted during the Kalman filtering All passive materials taken into account for MS and dE/dx All passive materials taken into account for MS and dE/dx
correctionscorrections
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1111
Number of cells in barrel: 13924disposed in 236 slices containing 59 cells
Number of cells in each endcap: 3164 disposed in 27 rings
Status of ILCroot: DREAMStatus of ILCroot: DREAM
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1212
Bottom view of single cell
Bottom cell size: ~2 cm
Top cell size: ~ 4 cm
Prospective view of clipped cell
Cell length: 150 cm, 100cm
Number of fibers inside each cell: 1980equally subdivided between Scintillating and CerenkovFiber stepping ~2 mm
Status of ILCroot: DREAMStatus of ILCroot: DREAM
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1313
Results from DREAM simulation Results from DREAM simulation (V. Di Benedetto)(V. Di Benedetto)
Scintillation and Cerenkov processes well Scintillation and Cerenkov processes well simulatedsimulated
Easily switch from Cu to W (however, need Easily switch from Cu to W (however, need to change calibration values of to change calibration values of SS and and CC))
Pattern recognition in place (nearby cells).Pattern recognition in place (nearby cells).Hadronic showers appear to reproduce the Hadronic showers appear to reproduce the
compensation effect seen in the test module compensation effect seen in the test module (Fluka)(Fluka)
PiD (e/PiD (e///) results are very promising) results are very promising
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1414
Fluka vs G3/G4Fluka vs G3/G4
Fluka
Geant3
Geant4
- at 50 GeV in Pb Sphere of 500 cm Radius
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1515
MC for DREAMMC for DREAM
In the Bangalore version some 30% energy was In the Bangalore version some 30% energy was not deposited (hadrons only, electrons were OK)not deposited (hadrons only, electrons were OK)
After fine tuning with CERN, 50 GeV After fine tuning with CERN, 50 GeV -- deposits: deposits: 46.5 GeV in Pb with G346.5 GeV in Pb with G3 47.8 GeV in Pb with G4 (QGSP_BERT_HP )47.8 GeV in Pb with G4 (QGSP_BERT_HP ) 45.0 GeV in Pb with G4 (QGSP_BERT )45.0 GeV in Pb with G4 (QGSP_BERT ) 48.1 GeV in Pb with Fluka 48.1 GeV in Pb with Fluka
Punch-through in 1m Cu is clearly visible in the Punch-through in 1m Cu is clearly visible in the event display (should be recovered in the Muon event display (should be recovered in the Muon Spectrometer)Spectrometer)
However, the energy deposited in the Cu is However, the energy deposited in the Cu is about twice than in W.about twice than in W.
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1616
Electrons in EndcapsElectrons in Endcaps
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1717
Resolution Plots for Resolution Plots for (Barrel only) (Barrel only)
(E)/E=45%/sqrt(E)
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1818
Detector layoutDetector layout
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 1919
ILCroot Event DisplayILCroot Event Display
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 2020
ILCroot Event Display 2ILCroot Event Display 2
October 20th, 2006October 20th, 2006 A. MazzacaneA. Mazzacane 2121
ConclusionsConclusions
Work is proceeding quicklyWork is proceeding quicklyFirst analyses will be shown at ValenciaFirst analyses will be shown at Valencia ILCroot and instructions on the web asap! ILCroot and instructions on the web asap!