Transcript ppt

Preliminary report
TKR studies with one side readout for
single tower
Monica Brigida
Nico Giglietto
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Outline
 Some interesting TKR plots:
 Compare distribution for muon selected events
in TowerA when the TKR is read out by left
(135000898) or right (135000900) cables only.
Baseline run (135000894) is used by reference.
No cuts applied
 Compare the same runs, when MIPs are selected
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All trigger types
No cuts applied
Ratio
0 track
1 track
2 tracks
More than 2
tracks
Baseline run
0.037
0.78
0.14
0.034
“left” run
0.036
0.79
0.14
0.034
“right” run
0.037
0.78
0.14
0.034
Ratio of events with different number of reconstructed TKR tracks
Average number of hit strips per layer
“right/left” runs and baseline run
All trigger types
No cuts applied
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Baseline run 135000894
average ToT per layer
All trigger types
No cuts applied
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Average ToT distribution per layer
for “left” and “right” runs
All trigger types
No cuts applied
Layers
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MIPs on Cal selection
 To select MIPs we used the CalMIPRatio
variable from merit root files
 The selection applied (MIPs cut):
0.6<CalMIPRatio <1.3
 CalMIPRatio variable take into account the
total length of the track in crystals (thanks
to Anders for info)
 When the MIPs cut is applied, the 17% of
the events are selected
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Baseline run 135000894
GemConditionWord
No cuts applied
Mips selected
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“left” run 135000898
GemConditionWord
No cuts applied
Mips selected
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“right” run 135000900
GemConditionWord
No cuts applied
Mips selected
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Baseline run 135000894
recon Z Dir
Tipical distribution at sea level
No cuts applied
Mips selected
No difference for “left”
and “right” run
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Baseline run 135000894
Vtx Z Pos
No cuts applied
Recontructed event position
along the z axis
Mips selected
No difference for “left”
and “right” run
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Baseline run 135000894
TkrNumVertices
No cuts applied
Mips selected
No difference for “left” and “right” run
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Baseline run 135000894
TimeIntervalGem
No cuts applied
ms
Mips selected
ms
No difference for “left” and “right” run
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Baseline run 135000894
digit distribution
No cuts applied
3x-3y trigger
condition
Digit number
per layer
Mips selected
No difference for “left” and “right” run
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To do
 MIPs selection applied to ToT and the
number of hit strips distributions
 Ready to start data analysis with two
towers
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