Muon detector performance test for DOD

1
Muon detector performancetest for DOD

• 2006/03/22
• Hiroaki Ono
• Niigata University
• With Acfa-Sim-J members

2
Latest Geometry in Jupiter

• Dodecagonal shape (12gon)
• Front Active layer at MUD
• 9 Layers MUD iron
• FCAL was installed

VTX
SOL
TPC
CAL
MUD
3
Latest Geometry Cut View

• Dodecagonal shape (12gon) of Muon Detector
• 9 Layers of Absorber at Muon Detector
• Front Active Layer as Default

Z cut view
r-f cut view
4
Difference of Dodecagonal and Octagonal geometry
Iron 25cm x 7 50cm x 2
Iron 50cm x 5
765cm
700cm
5
Muon Finding Efficiency (previous geom)

• Muon injected to the
• cosq 0
• (barrel direction)
• 1000 events in each momentum.
• Red First Layer only
• Black All Layer
• (4 layers, 50cm x 4 layers Iron )

6
Muon Finding Efficiency (new geom)

• Muon injected to the
• cosq 0
• (barrel direction)
• 1000 events in each momentum.
• 8 layers required case will be consistent with
  all layer required case at old geometry.
• Cut off will be 6 GeV

7
Multiple Scattering Effect (First Layer)
Muon injected to the cosq0 direction Muon
momentum 5,10,20,50,100GeV sz 0.6 cm
_at_100GeV at the First Layer.
8
Multiple Scattering Effect (Last layer)

• Muon injected to
• the cosq0 direction.
• Muon momentum
• 5,10,20,50,100GeV
• sz 1.3 cm _at_100GeV
• at the Last Layer.

9
Momentum dependence of sz

• Smaller than 1cm will be reached.

10
Event Display of Jets event
11
All Particles Energy in each events
vs 500GeV
Neutrino
Total
Muon
K0L
All particles total energy measured at MUD
surface in each events.
Total - Neutrino
12
Not merged event by event
vs 500GeV
Muon momentum measured at muon detector surface.
13
All Particles Energy in each events
Z? uds
Neutrino
Total
vs 91.18GeV
Muon
K0L
All particles total energy measured at MUD
surface in each events.
Total - Neutrino
14
Not merged event by event
Z? uds
vs 91.18GeV
Muon momentum measured at muon detector surface.
15
Latest Design in DOD draft
Front active layer at MUD
Octagonal Shape
425cm
800cm
Number of Layers are 9
16
Difference of Dodecagonal and Octagonal geometry
17
Why is it worse compare to previous Acfa Report?

• This simulation looks
• observing at
• Muon Detector
• front surface,
• Not First Layer ?
• Muon first layer located
• After 5cm Iron plate in current setup.
• 5.6l0 ? HD6.1l0 SOL

18
Event Generation

• I am very sorry to submit so many jobs to CPU
  servers and occupy them.
• 810 min / bb 500GeV 1 event
• 34 min / uds 91 GeV 1 event
• 20k events are required for the leakage energy
  plots.

19
jsf.conf parameter sets for Generation

• JSFGUI.Pythia.ISR 0
• JSFJ4.ParameterTable gldmar06_2m.dat
• JSFJ4.HasIR No (IR geometry has problem)
• JSFJ4.HasMUD Yes
• JSFGUI.Pythia.Decay.Z -5, -6
• JSFGUI.Pythia.Process.gammaZ 1
• JSFGUI.ECM 500.0, 91.18