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Full simulator study of muon detector (and calorimeter). 8th ACFA Workshop at Daegu, Korea 2005/07/12 (Tue) Hiroaki Ono (Niigata University) with ACFA-sim-j members. Muon detector status in Full simulator. Jupiter (MC generator) Installation of muon geometry, magnetic field - PowerPoint PPT Presentation
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2005/07/11 (Tue) 8th ACFA meeting @Daegu
Full simulator study of muon detector (and calorimeter)
8th ACFA Workshop at Daegu, Korea2005/07/12 (Tue)
Hiroaki Ono (Niigata University)with ACFA-sim-j members
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Muon detector status in Full simulator
• Jupiter (MC generator)– Installation of muon geometry, magnetic field to the generator was finished(Outside of the Solenoid, as a return yoke)
• Satellites (Analysis part)– smear and muID is under construction.– Exact hit (MC truth) can be analyze.
I will report the current status of Muon detector in full simulator.
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Jupiter generator part
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Geometry of Muon detector
• Active layer (10cm-thick)– air : Default, reserved Gas chamber)– scintillator : test version
• Absorber (40cm-thick)– Iron (as a return yoke)
• Barrel : 4 layers, Endcap : 5+2(inner) layers• Octagonal shape in the phi direction• Alternately placed barrel and endcap layer
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Geometry of Muon detector
700
[cm]
375
430
530845
450
2 layers placed inside of the solenoid coil.Alternately placed at diagonal region.
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Magnetic field for full simulator
Magnetic field/ Flux line Unit: Tesla
Return Yoke magnetic field Study(KEK H.Yamaoka-san)
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Magnetic field in Jupiter (MUD)
1 to 2 TeslaRoughly installed in return-yoke
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Magnetic field test by muon
• - 10 GeV • z=0, y=1 direction (barrel direction)• Opposite curveture at th
e inside of solenoid and outside.
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Satellites analysis part
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Muon detector standard tests
•Calibration•Leakage energy from CAL
(punch through)•e+e-→ZH→bb event analysis•Muon finding ( ID) efficiency (still under study)
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Calibration of MUD by muon
calibration (MIP)
•10GeV -
Injected to barrel direction•Energy deposit in each layer > 10 MeV
Threshold set to 10 MeV (MIP)for the muon finding (muID)
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Muon generated inside of CAL
If we use muon detector for muon ID, it can be a miss PID due to the muon created inside of Calorimeter.
As a first step, we check the number of muons created inside of the calorimeter.
ECM = 300 GeV, Events = 500 event
e+e-→ZH →+bb
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Hit informations in CAL/MUD
1 2
CAL inner
CAL outer
MUD Inner
created inside of the CAL
Check the PDG code at CAL front and MUD front
from IP
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Compare muon at CAL/MUD front
generated before the CAL212 eventsTotal Energy : 21.4 GeV(mean)(Max ~ 140 GeV)
generated inside of the CAL17 eventsTotal Energy : Less than 10 GeV
e+e-→ZH →+ bb (Ecm : 300GeV, 500 events)
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Pion leakage from CalorimeterPion single beam energy scan from 2 ~ 300 GeV
Number of pion events tagged at the MUD front
Total energy measured at the MUD front [GeV]
20 GeV : 11 events300 GeV : 680 events
Number of pions leaked from CAL increase from the incident energy grater than 20 GeV
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Pion leak from the Calorimeter
20GeV
Number of pions at MUD front(pion ID checked by PDG code)
Mean energy of Pions at MUD front(pion ID checked by PDG code)
20GeV
Low energy pi increaseat high energy part.
Pion single beam energy scan from 2 to 300 GeV
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Muon finding methods (Under construction) Search MIP peak in the MUD
(threshold > 10MeV)
All layer passing event required
Check mother track CAL(Front/Out)
MUD
CALTrack matching with tracker
Tracker Under construction !
2005/07/11 (Tue) 8th ACFA meeting @Daegu
Summary and next steps
•We finish the installation of MUD geometry, Magnetic field to the Jupiter (MC G4 generator) •Under construction of the Satellites analysis part.
•BUG fix should be improved.•MUD change to the tracker base Muon self tracking in MUD and connect to tracker•Muon ID efficiency by finding methods.
Next step...
Current status...