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WorkLog
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| Jin's Research Log Book |
Logged in as "Jin Huang" |
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Message ID: 477
Entry time: Tue Mar 22 16:40:55 2011
In reply to: 473
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| Author: |
Jin Huang |
| Category: |
SoLID |
| Type: |
Notes |
| Subject: |
SciFi Calorimeter simulation : Preshower - Shower configuration @ Babar setups |
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The simulation
- 4cm thick preshower
- W plate transverse to the z axis
- 15cm shower
- W plate parallel to the z axis and along the azimuthal direction of SoLID
- 4 block on the transverse dimention.
Electron in 1.5T field
Pion in 1.5T field
Calibration using No field electron
****************************************
Minimizer is Minuit2
Chi2
= 246.859
NDf
= 60
Edm
= 1.0688e-10
NCalls
= 75
Constant
=
2010.51
+/- 16.3401
Mean
= 0.0560001
+/- 1.83191e-05
Sigma
= 0.00284881
+/- 1.44278e-05
(limited)
Preshower Calib Constant = 17.8571
****************************************
Minimizer is Minuit2
Chi2
= 204.261
NDf
= 77
Edm
= 4.46726e-11
NCalls
= 66
Constant
=
1237.97
+/- 9.99226
Mean
= 0.0551031
+/- 1.89629e-05
Sigma
= 0.00295672
+/- 1.47425e-05
(limited)
Shower Calib Constant = 18.1478
No field electron
****************************************
Minimizer is Linear
Chi2
= 90.8198
NDf
= 79
p0
=
0.984509
+/- 0.00110771
p1
= 0.00117718
+/- 0.000206047
****************************************
Minimizer is Minuit2
Chi2
= 0.000186966
NDf
= 74
Edm
= 3.89092e-09
NCalls
= 139
p0
= -0.00942338
+/- 0.00273579
p1
= -0.0796272
+/- 0.00157484
1.5T Bz field electron
****************************************
Minimizer is Linear
Chi2
= 84.4887
NDf
= 79
p0
=
0.984636
+/- 0.00109232
p1
= 0.000476224
+/- 0.000202477
****************************************
Minimizer is Minuit2
Chi2
= 0.000388148
NDf
= 74
Edm
= 1.53284e-08
NCalls
= 147
p0
= -0.00482015
+/- 0.0052396
p1
= -0.0807267
+/- 0.00154088
Electron Eff and Pion Rejection
- Cut on preshower > 1GeV
- Tototal shower E/p > 0.9
Electron Eff
Pass = 0.9542
Rejection = 0.0458
Pion Rejection
Pass = 0.0447677
Rejection = 0.955232
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