Transcript HES meeting 5/10

HES meeting 08/05/09
Kohsuke Yokota
M1 Tohoku Univ.
LNS Exp. Analysis by yokota
TUL vs NTuple Grouping
Drift Chamber Tracking
T.O.F Resolution Study
HES meeting 08/05/09
TUL vs NTuple Grouping
■ Condition
・ In LNS Exp. , We got TUL Grouping Output ( Grouping 1~8 ).
So, we can compare TUL and NTuple Grouping.
・ NTuple Grouping EFF. ( TUL Counts / NTuple CountsB1
)
Group 1
( F1| F2| F3|F4) & (B1| B2| B3|B4)
Group 2
( F1&B1) | (F1&B2).........
Group 3
( F1| F2) & (B1| B2)
Group 4
( F3| F4) & (B3| B4)
Group 5
( F2| F3) & (B2| B3)
Group 6
( F1 & B4) | ( F4 & B1)
Group 7
( F2 & B1) | ( F3 & B2)
Group 8
( F2 & B3) | ( F3 & B4)
D.C ( 2Layer )
F1
B4
F4
HES meeting 08/05/09
TUL vs NTuple Grouping
■ Event distribution at Hodo Scope and D.C.
Ehodo distribution
● Distribution @ Ehodo
・ 相対的に中心はだいたい合っている。
・ Grouping の結果とも Consistent.
70000
60000
counts
50000
40000
Forward
Back
30000
20000
Drift Chamber Distribution
10000
100000
0
10000
Drift Chamber
Forward
Drift Chamber
Back
1000
100
10
1
DC
_b
DC 0
_b
DC 4
_
DC b8
_b
DC 12
_b
DC 16
_b
DC 20
_b
DC 24
_b
DC 28
_b
32
● Distribution @ D.C.
・ 相対的にD.C.Backward がかなり右に
ずれてしまっている。
・ Backward に Offsetをつけて、調整。.
Counts
Ehodo_0 Ehodo_1 Ehodo_2 Ehodo_3
Channel
HES meeting 08/05/09
TUL vs NTuple Grouping
■ NTuple Grouping Efficiency ( NTuple/TUL )
NTuple Grouping EFF.
120
100
Run173
Run167
Run166
60
40
20
ou
p8
Gr
ou
p7
Gr
ou
p6
Gr
ou
p5
Gr
ou
p4
Gr
ou
p3
Gr
ou
p2
Gr
ou
p1
Gr
C.
0
AC
[%}
80
Group6 :: Bag Check
HES meeting 08/05/09
Drift Chamber Tracking
■ x vs TDC @ DC_Forward plane
@DC_Forward
HES meeting 08/05/09
Drift Chamber Tracking
■ x vs TDC @ DC_Forward plane
@DC_Forward
HES meeting 08/05/09
Drift Chamber Tracking
■ x vs xp @ Ehodo_Forward plane
RED : @Ehodo_Forward
BLUE: @DC_Forward
HES meeting 08/05/09
Timing Resolution Study
■ Procedure
• Trigger Counter 、Ehodo、の全ての組み合わせに対して
Slewing Correction を施す。
（ Slewing Correction は、二次関数を用いて行った。 ）
• 誤差の伝播公式を用いて、それぞれのカウンターの時間分解能を
求める。
Slewing Correction
・ BINを分割しY 軸にProjectionする。
・ Fitting の対象には、Entry 数が、
分割した際に平均以上ある点のみ。
・ Fitting には二次関数の逆数を使用。
y = [ 0 ] * ( x – [ 1 ] )-2 + [ 3 ]
HES meeting 08/05/09
Timing Resolution Study
■ Slewing Correction ( ADC%TDC ) Ehodo_F2
HES meeting 08/05/09
Timing Resolution Study
■ Slewing Correction ( ADC%TDC ) Ehodo_F3
HES meeting 08/05/09
Timing Resolution Study
■ Slewing Correction ( ADC%TDC ) Ehodo_B2
HES meeting 08/05/09
Timing Resolution Study
■ Slewing Correction ( ADC%TDC ) Ehodo_B3
HES meeting 08/05/09
Timing Resolution Study
■ After Slewing Correction Ehodo_F3F4B3B4
Ehodo_F3 TOP and BOTTOM
Ehodo_F4 TOP and BOTTOM
Ehodo_B3 TOP and BOTTOM
Ehodo_B4 TOP and BOTTOM
HES meeting 08/05/09
Timing Resolution Study
■ After Slewing Correction ( ADC%TDC ) T1F,T1B
!! 細すぎ。。。
MY EYE POWER !!
HES meeting 08/05/09
Timing Resolution Study
■ TOF Resolution for Trigger Counter
TOF_mean
8.08636
TOF_resolution(siguma)
[psec]
116.503167
TOF_resolution(siguma) error
[psec]
1.217827
HES meeting 08/05/09
Timing Resolution Study
■ TOF Resolution for Trigger and Ehodo
Ehodo_Forward 2
Ehodo_Forward 3
Trigger Counter Forward
Trigger Counter Backward
HES meeting 08/05/09
Timing Resolution Study
■ TOF Resolution for Trigger and Ehodo
Ehodo_Forward 6
Ehodo_Forward 7
Trigger Counter Forward
Trigger Counter Backward
HES meeting 08/05/09
Timing Resolution Study
■ TOF Resolution for Trigger and Ehodo
TOF_mean
TOF_resolution(siguma)
[psec]
TOF_resolution(siguma)
error [psec]
T1f+Ehf2
23.1957
116.800167
0.884225
T1f+Ehf3
7.78756
135.424833
1.461422
T1f+Ehb2
9.02133
112.030833
0.966782
T1f+Ehb3
21.6042
125.448167
1.491145
T1b+Ehf2
-3.14603
116.290167
0.989475
T1b+Ehf3
-1.60764
124.641333
1.267787
T1b+Ehb2
-1.72888
109.017
1.068598
T1b+Ehb3
-2.9888
117.311167
1.647235
Trigger Counter
8.08636
116.503167
1.217827
HES meeting 08/05/09
Timing Resolution Study
■ Timing Resolution for Trigger and Ehodo
Counter ID
Timing Resolution sigma [psec]
Ehodo_F2
82.44
Ehodo_F3
100.75
Ehodo_B2
73.7
Ehodo_B3
89.22
Trigger_FT
84.37 ( w/ Ehodo_B2 )
Trigger_BT
80.33 ( w/ Ehodo_B2 )