|
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Line 611: |
Line 611: |
| | | |
| ===Localized Vertex Resolution of 3 Dimensional targets=== | | ===Localized Vertex Resolution of 3 Dimensional targets=== |
− | For this section I created a target that is 2cm in X and Y, and 6cm in Z. To produce the histograms I made a cut in the radius of a cylinder (R=0.1cm, R=0.2cm, .... , R=1.0cm) and also cut Z (Z=1cm, Z=2cm,...,Z=6cm) so that for each fixed radius there will be 6 histograms corresponding to changes in Z. For example, assume I am using R=0.1cm. There will be 6 histograms for X,Y,and Z corresponding to changing Z from 1cm to 6cm in 1cm increments. I also placed a cut for the reconstructed events using the commands abs(Event.z) <= 4.0 and sqrt(Event.x*Event.x+Event.y*Event.y) <=1.
| |
− |
| |
| For the plots below, a 6 GeV electron was fired at angles 25 degrees in theta and 30 degrees in phi. The target has an XY radius of 1cm and a length in the Z direction of 6cm. Setting GenPart.z = 0cm, the resolution was investigated as a function of the target's XY radius along with a table for the values. | | For the plots below, a 6 GeV electron was fired at angles 25 degrees in theta and 30 degrees in phi. The target has an XY radius of 1cm and a length in the Z direction of 6cm. Setting GenPart.z = 0cm, the resolution was investigated as a function of the target's XY radius along with a table for the values. |
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Line 618: |
Line 616: |
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| {|border="5" | | {|border="5" |
− | ||R (cm)|| Resolution (cm)
| |
− | |-
| |
− | ||0.1 || 0.06013 +/- 0.00187
| |
− | |-
| |
− | || 0.2 || 0.073 +/- 0.001
| |
− | |-
| |
− | || 0.3 || 0.09447 +/- 0.00123
| |
− | |-
| |
− | || 0.4 || 0.1764 +/- 2.6134
| |
− | |-
| |
− | || 0.5 || 0.1267 +/- 0.001
| |
− | |-
| |
− | ||0.6 || 0.5226 +/- 5.8171
| |
− | |-
| |
− | ||0.7 || 0.785 +/- 0.004
| |
| |- | | |- |
− | ||0.8 || 0.8713 +/- 0.0043 | + | ||R (cm) || 0.1 || 0.2 || 0.3 || 0.4 || 0.4 ||0.5||0.6||0.7||0.8||0.9||1.0 |
| |- | | |- |
− | || 0.9 || 1.003 +/- 0.005 | + | ||Width (cm) || 0.6013 +/- 0.00187 || 0.073 +/- 0.001 || 0.09447 +/- 0.00123 || 0.1764 +/- 2.6134 || 0.1267 +/- 0.001 || 0.5226 +/- 5.8171 || 0.785 +/- 0.004 || 0.8713 +/- 0.0043 || 1.003 +/- 0.005 || 1.083 +/- 0.006 |
| |- | | |- |
− | || 1.0 || 1.083 +/- 0.006
| |
| |}<br> | | |}<br> |
| | | |
| | | |
| It would seem that when R = 0.4cm and R = 0.6cm that the error in the Gaussian fit in ROOT is quite far off. | | It would seem that when R = 0.4cm and R = 0.6cm that the error in the Gaussian fit in ROOT is quite far off. |
| + | |
| + | |
| + | For this section I created a target that is 2cm in X and Y, and 6cm in Z. To produce the histograms I made a cut in the radius of a cylinder (R=0.1cm, R=0.2cm, .... , R=1.0cm) and also cut Z (Z=1cm, Z=2cm,...,Z=6cm) so that for each fixed radius there will be 6 histograms corresponding to changes in Z. For example, assume I am using R=0.1cm. There will be 6 histograms for X,Y,and Z corresponding to changing Z from 1cm to 6cm in 1cm increments. I also placed a cut for the reconstructed events using the commands abs(Event.z) <= 4.0 and sqrt(Event.x*Event.x+Event.y*Event.y) <=1. |
| + | |
| + | For the plots below, a 6 GeV electron was fired at angles 25 degrees in theta and 30 degrees in phi. The target has an XY radius of 1cm and a length in the Z direction of 6cm. Setting GenPart.z = 0cm, the resolution was investigated as a function of the target's XY radius along with a table for the values. |
| | | |
| | | |
Vertex Reconstruction studies
Inclusive electron GEMC 2.4 & Coatjava 2.4
LB_GEMC2.4CJ2.4_Vertex
Summary
Set all histogram ranges to -6,6 cm and bin sizes of 0.1 cm
Point target X,Y,Z=0 cm
Below are examples of the reconstruction for several line targets as seen in the CED
We should change it to +30,150,210, and 330 degrees so the electron is not going in between two drift chambers but rather into the center, keep 90 and 270.
6cm Z Target, No Rotation |
6cm Z Target, 270 Degree Rotation |
6cm Z Target, 90 Degree Rotation |
2cm Y Target, 30 Degree Rotation |
2cm Y Target, 180 Degree Rotation |
2cm X Target, 90 Degree Rotation |
2cm X Target, 270 Degree Rotation
|
![Ced ZRaster 0DegRot.png](/./images/thumb/f/fd/Ced_ZRaster_0DegRot.png/200px-Ced_ZRaster_0DegRot.png) |
![6cm ZTarg 270DegRot CED.png](/./images/thumb/c/c6/6cm_ZTarg_270DegRot_CED.png/200px-6cm_ZTarg_270DegRot_CED.png) |
![Ced ZRaster 90DegRot.png](/./images/thumb/9/9c/Ced_ZRaster_90DegRot.png/200px-Ced_ZRaster_90DegRot.png) |
![2cm YRaster 30DegRot ced.png](/./images/thumb/a/a9/2cm_YRaster_30DegRot_ced.png/200px-2cm_YRaster_30DegRot_ced.png) |
![Ced YRaster 180DegRot.png](/./images/thumb/b/b6/Ced_YRaster_180DegRot.png/200px-Ced_YRaster_180DegRot.png) |
![Ced XRaster 90DegRot.png](/./images/thumb/1/17/Ced_XRaster_90DegRot.png/200px-Ced_XRaster_90DegRot.png) |
|
The histograms below are using a 6 GeV electron fired at an angles of 25 degrees in theta and 0 degrees in phi.
|
No Rastering
|
Vx Difference |
|
Vy Difference |
|
Vz Difference |
|
X Resolution (cm) |
0.2362 +/- 0.0008
|
Y Resolution(cm) |
0.09809 +/- 0.00033
|
Z Resolution (cm) |
0.05435 +/- 0.00017
|
These histograms raise some questions. To begin I created a LUND file with 6 GeV incident electrons at 25 degrees in theta and 0 degrees in phi. All of the vertex positions were set to 0. I then ran GEMC 2.4 using the command line
~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -INPUT_GEN_FILE="LUND,No_Raster.LUND" -N=75000 eg12_sol_No_Raster.gcard
which created an output file called eg12_sol_75k_No_Raster.ev. After that the reconstruction command line used was
~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_sol_75k_No_Raster.ev-config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=1.0 -o eg12_sol_75k_No_Raster_rec.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true -config DCTB::useRaster=true
After the reconstruction a root file was created using
~/src/CLAS/evio2root/bin/evio2root eg12_sol_75k_No_Raster_rec.evio eg12_sol_75k_No_Raster_rec.root 75000
A plot was then created to show the X Vertex and Y Vertex Differences
The first question is why is there a shift in the Y Difference. What would make X more centered around 0? The next question is when rastering begins, why do the resolutions in the X Vertices remain unchanged while the resolutions in the Y Vertices change?
Point in 2-D but extended target in 1-D
Two vertex variables are fixed at zero and the third vertex variable is altered. A 6 GeV electron was fired at angles of 25 degrees in theta and 0 degrees in phi.
|
2cm X Raster, Y=0,Z=0 |
2 cm Y Raster, X=0,Z=0 |
2 cm Z Raster ,X=0,Y=0 |
6 cm Z Raster ,X=0,Y=0
|
Vx Difference |
![1cm XRaster VxDifference sol 75k.png](/./images/thumb/c/c6/1cm_XRaster_VxDifference_sol_75k.png/200px-1cm_XRaster_VxDifference_sol_75k.png) |
![1cm YRaster VxDifference sol.png](/./images/thumb/9/91/1cm_YRaster_VxDifference_sol.png/200px-1cm_YRaster_VxDifference_sol.png) |
![2cm ZRaster VxDifference sol.png](/./images/thumb/8/83/2cm_ZRaster_VxDifference_sol.png/200px-2cm_ZRaster_VxDifference_sol.png) |
|
Vy Difference |
![1cm XRaster VyDifference sol.png](/./images/thumb/8/85/1cm_XRaster_VyDifference_sol.png/200px-1cm_XRaster_VyDifference_sol.png) |
![YRaster Eventy.png](/./images/thumb/b/bc/YRaster_Eventy.png/200px-YRaster_Eventy.png) |
![2cm ZRaster VyDifference sol.png](/./images/thumb/6/66/2cm_ZRaster_VyDifference_sol.png/200px-2cm_ZRaster_VyDifference_sol.png) |
|
Vz Difference |
![1cm XRaster VzDifference sol.png](/./images/thumb/2/28/1cm_XRaster_VzDifference_sol.png/200px-1cm_XRaster_VzDifference_sol.png) |
![1cm YRaster VzDifference sol.png](/./images/thumb/8/80/1cm_YRaster_VzDifference_sol.png/200px-1cm_YRaster_VzDifference_sol.png) |
![2cm ZRaster VzDifference.png](/./images/thumb/e/e9/2cm_ZRaster_VzDifference.png/200px-2cm_ZRaster_VzDifference.png) |
|
X Resolution (cm) |
0.2658 +/- 0.0010 |
0.2531 +/- 0.0009 |
0.2544 +/- 0.0009 |
0.2539 +/- 0.0009
|
Y Resolution(cm) |
0.1728 +/- 0.0007 |
0.2368 +/- 0.0007 |
0.2644 +/- 0.0007 |
0.6191 +/- 0.0013
|
Z Resolution (cm) |
0.1792 +/- 0.0006 |
0.1998 +/- 0.0004 |
0.4318 +/- 0.0009 |
1.105 +/- 0.002
|
Extended target -3 < Z < 3 cm
|
1cm X Raster |
1 cm Y Raster |
1 cm X & Y Raster
|
X Resolution (cm) |
0.2696 +/- 0.0009 |
0.2588 +/- 0.0009 |
0.2734 +/- 0.0009
|
Y Resolution (cm) |
0.6234 +/- 0.0014 |
0.6851 +/- 0.0014 |
0.6927 +/- 0.0013
|
Z Resolution (cm) |
1.136 +/- 0.002 |
1.361 +/- 0.002 |
1.381 +/- 0.003
|
Generated Vx (cm) |
![3cm ZRaster 1cm XRaster GenX sol.png](/./images/thumb/c/c7/3cm_ZRaster_1cm_XRaster_GenX_sol.png/200px-3cm_ZRaster_1cm_XRaster_GenX_sol.png) |
![3cm ZRaster 1cm YRaster GenX sol.png](/./images/thumb/9/99/3cm_ZRaster_1cm_YRaster_GenX_sol.png/200px-3cm_ZRaster_1cm_YRaster_GenX_sol.png) |
|
Generated Vy (cm) |
![3cm ZRaster 1cm XRaster GenY sol.png](/./images/thumb/e/e0/3cm_ZRaster_1cm_XRaster_GenY_sol.png/200px-3cm_ZRaster_1cm_XRaster_GenY_sol.png) |
![3cm ZRaster 1cm YRaster GenY sol.png](/./images/thumb/1/15/3cm_ZRaster_1cm_YRaster_GenY_sol.png/200px-3cm_ZRaster_1cm_YRaster_GenY_sol.png) |
|
Generated Vz (cm) |
![3cm ZRaster 1cm XRaster GenZ sol.png](/./images/thumb/d/d6/3cm_ZRaster_1cm_XRaster_GenZ_sol.png/200px-3cm_ZRaster_1cm_XRaster_GenZ_sol.png) |
![3cm ZRaster 1cm YRaster GenZ sol.png](/./images/thumb/f/f1/3cm_ZRaster_1cm_YRaster_GenZ_sol.png/200px-3cm_ZRaster_1cm_YRaster_GenZ_sol.png) |
|
Reconstructed Vx (cm) |
![3cm ZRaster 1cm XRaster EventX sol.png](/./images/thumb/a/a2/3cm_ZRaster_1cm_XRaster_EventX_sol.png/200px-3cm_ZRaster_1cm_XRaster_EventX_sol.png) |
![3cm ZRaster 1cm YRaster EventX sol.png](/./images/thumb/4/49/3cm_ZRaster_1cm_YRaster_EventX_sol.png/200px-3cm_ZRaster_1cm_YRaster_EventX_sol.png) |
|
Reconstructed Vy (cm) |
![3cm ZRaster 1cm XRaster EventY sol.png](/./images/thumb/3/32/3cm_ZRaster_1cm_XRaster_EventY_sol.png/200px-3cm_ZRaster_1cm_XRaster_EventY_sol.png) |
![3cm ZRaster 1cm YRaster EventY sol.png](/./images/thumb/3/32/3cm_ZRaster_1cm_YRaster_EventY_sol.png/200px-3cm_ZRaster_1cm_YRaster_EventY_sol.png) |
|
Reconstructed Vz (cm) |
![3cm ZRaster 1cm XRaster EventZ sol.png](/./images/thumb/7/7c/3cm_ZRaster_1cm_XRaster_EventZ_sol.png/200px-3cm_ZRaster_1cm_XRaster_EventZ_sol.png) |
![3cm ZRaster 1cm YRaster EventZ sol.png](/./images/thumb/8/82/3cm_ZRaster_1cm_YRaster_EventZ_sol.png/200px-3cm_ZRaster_1cm_YRaster_EventZ_sol.png) |
|
Vx Difference (cm) |
![XZRaster VxDifference 1mmbins.png](/./images/thumb/c/c0/XZRaster_VxDifference_1mmbins.png/200px-XZRaster_VxDifference_1mmbins.png) |
![YZRaster VxDifference 1mmbins.png](/./images/thumb/e/e9/YZRaster_VxDifference_1mmbins.png/200px-YZRaster_VxDifference_1mmbins.png) |
|
Vy Difference (cm) |
![XZRaster VyDifference 1mmbins.png](/./images/thumb/5/52/XZRaster_VyDifference_1mmbins.png/200px-XZRaster_VyDifference_1mmbins.png) |
![YZRaster VyDifference 1mmbins.png](/./images/thumb/9/9a/YZRaster_VyDifference_1mmbins.png/200px-YZRaster_VyDifference_1mmbins.png) |
|
Vz Difference (cm) |
![XZRaster VzDifference 1mmbins.png](/./images/thumb/5/54/XZRaster_VzDifference_1mmbins.png/200px-XZRaster_VzDifference_1mmbins.png) |
![YZRaster VzDifference 1mmbins.png](/./images/thumb/0/07/YZRaster_VzDifference_1mmbins.png/200px-YZRaster_VzDifference_1mmbins.png) |
|
Extended target in Z. Vy shift analysis
All Histograms below were created by simply making the target longer along the Z axis. Each case uses vertex points for X and Y ranging from -1cm to 1cm
|
0.5cm Z Target |
1cm Z Target |
2cm Z Target |
3cm Z Target |
4cm Z Target |
5cm Z Target
|
X Resolution (cm) |
0.2705 +/- 0.0010 |
0.2726 +/- 0.0010 |
0.2716 +/- 0.0010 |
0.2731 +/- 0.0010 |
0.2702 +/- 0.0009 |
0.2736 +/- 0.0010
|
Y Resolution (cm) |
0.2041 +/- 0.0010 |
0.2282 +/- 0.0011 |
0.3152 +/- 0.0014 |
0.433 +/- 0.002 |
0.5584 +/- 0.0018 |
0.6454 +/- 0.0015
|
Z Resolution (cm) |
0.28 +/-0.00 |
0.3582 +/- 0.0013 |
0.5659 +/- 0.0018 |
0.7927 +/- 0.0023 |
1.034 +/- 0.003 |
1.253 +/-0.003
|
X Mean (cm) |
0.0139 +/- 0.001 |
0.0139 +/- 0.00107 |
0.01436 +/- 0.00104 |
0.01217 +/- 0.00107 |
0.00991 +/- 0.00104 |
0.009022 +/- 0.00105
|
Y Mean (cm) |
-0.1893 +/- 0.0011 |
-0.2004 +/- 0.0012 |
-0.2379 +/- 0.0016 |
-0.2936 +/- 0.0022 |
-0.3648 +/- 0.0027 |
-0.3871 +/- 0.0026
|
Z Mean (cm) |
0.0928 +/- 0.0014 |
0.06464 +/- 0.0013 |
-0.0337 +/- 0.0028 |
-0.1582 +/- 0.0040 |
-0.3016 +/- 0.0053 |
-0.486 +/- 0.006
|
Generated Vx (cm) |
![05cmZTarg GenPartx.png](/./images/thumb/8/81/05cmZTarg_GenPartx.png/200px-05cmZTarg_GenPartx.png) |
![1cmZTarg GenPartx.png](/./images/thumb/4/49/1cmZTarg_GenPartx.png/200px-1cmZTarg_GenPartx.png) |
![2cmZTarg GenPartx.png](/./images/thumb/4/4f/2cmZTarg_GenPartx.png/200px-2cmZTarg_GenPartx.png) |
![3cmZTarg GenPartx.png](/./images/thumb/e/ec/3cmZTarg_GenPartx.png/200px-3cmZTarg_GenPartx.png) |
![4cmZTarg GenPartx.png](/./images/thumb/7/74/4cmZTarg_GenPartx.png/200px-4cmZTarg_GenPartx.png) |
|
Generated Vy (cm) |
![0.5ZTarg GenPartY.png](/./images/thumb/5/5f/0.5ZTarg_GenPartY.png/200px-0.5ZTarg_GenPartY.png) |
![1cmZTarg GenParty.png](/./images/thumb/9/97/1cmZTarg_GenParty.png/200px-1cmZTarg_GenParty.png) |
![2cmZTarg GenPartY.png](/./images/thumb/3/3b/2cmZTarg_GenPartY.png/200px-2cmZTarg_GenPartY.png) |
![3cmZTarg GenParty.png](/./images/thumb/0/0b/3cmZTarg_GenParty.png/200px-3cmZTarg_GenParty.png) |
![4cmZTarg GenPartY.png](/./images/thumb/6/6b/4cmZTarg_GenPartY.png/200px-4cmZTarg_GenPartY.png) |
|
Generated Vz (cm) |
![05ZTarg GenPartz.png](/./images/thumb/9/90/05ZTarg_GenPartz.png/200px-05ZTarg_GenPartz.png) |
![1cmZTarg GenPartz.png](/./images/thumb/5/5a/1cmZTarg_GenPartz.png/200px-1cmZTarg_GenPartz.png) |
![2cmZTarg GenPartz.png](/./images/thumb/0/01/2cmZTarg_GenPartz.png/200px-2cmZTarg_GenPartz.png) |
![3cmZTarg GenPartz.png](/./images/thumb/4/49/3cmZTarg_GenPartz.png/200px-3cmZTarg_GenPartz.png) |
![4cmZTarg GenPartz.png](/./images/thumb/a/aa/4cmZTarg_GenPartz.png/200px-4cmZTarg_GenPartz.png) |
|
Reconstructed Vx (cm) |
![0.5ZTarg Eventx.png](/./images/thumb/c/c4/0.5ZTarg_Eventx.png/200px-0.5ZTarg_Eventx.png) |
![1cmZTarg Eventx.png](/./images/thumb/d/d6/1cmZTarg_Eventx.png/200px-1cmZTarg_Eventx.png) |
![2cmZTarg Eventx.png](/./images/thumb/b/bc/2cmZTarg_Eventx.png/200px-2cmZTarg_Eventx.png) |
![3cmZTarg Eventx.png](/./images/thumb/c/c1/3cmZTarg_Eventx.png/200px-3cmZTarg_Eventx.png) |
![4cmZTarg Eventx.png](/./images/thumb/2/28/4cmZTarg_Eventx.png/200px-4cmZTarg_Eventx.png) |
|
Reconstructed Vy (cm) |
![0.5ZTarg Eventy.png](/./images/thumb/6/65/0.5ZTarg_Eventy.png/200px-0.5ZTarg_Eventy.png) |
![1cmZTarg Eventy.png](/./images/thumb/4/41/1cmZTarg_Eventy.png/200px-1cmZTarg_Eventy.png) |
![2cmZTarg EventY.png](/./images/thumb/4/4a/2cmZTarg_EventY.png/200px-2cmZTarg_EventY.png) |
![3cmZTarg Eventy.png](/./images/thumb/b/be/3cmZTarg_Eventy.png/200px-3cmZTarg_Eventy.png) |
![4cmZTarg Eventy.png](/./images/thumb/a/a9/4cmZTarg_Eventy.png/200px-4cmZTarg_Eventy.png) |
|
Reconstructed Vz (cm) |
![0.5ZTarg Eventz.png](/./images/thumb/3/3d/0.5ZTarg_Eventz.png/200px-0.5ZTarg_Eventz.png) |
![1cmZTarg Eventz.png](/./images/thumb/2/22/1cmZTarg_Eventz.png/200px-1cmZTarg_Eventz.png) |
![2cmZTarg Eventz.png](/./images/thumb/3/3e/2cmZTarg_Eventz.png/200px-2cmZTarg_Eventz.png) |
![3cmZTarg Eventz.png](/./images/thumb/c/c2/3cmZTarg_Eventz.png/200px-3cmZTarg_Eventz.png) |
![4cmZTarg Eventz.png](/./images/thumb/9/90/4cmZTarg_Eventz.png/200px-4cmZTarg_Eventz.png) |
|
Vx Difference (cm) |
![0.5ZTarg VxDiff.png](/./images/thumb/9/98/0.5ZTarg_VxDiff.png/200px-0.5ZTarg_VxDiff.png) |
![1cmZTarg VxDiff.png](/./images/thumb/6/68/1cmZTarg_VxDiff.png/200px-1cmZTarg_VxDiff.png) |
![2cmZTarg VxDiff.png](/./images/thumb/e/e2/2cmZTarg_VxDiff.png/200px-2cmZTarg_VxDiff.png) |
![3cmZTarg VxDiff.png](/./images/thumb/c/c5/3cmZTarg_VxDiff.png/200px-3cmZTarg_VxDiff.png) |
![4cmZTarg VxDiff.png](/./images/thumb/1/12/4cmZTarg_VxDiff.png/200px-4cmZTarg_VxDiff.png) |
|
Vy Difference (cm) |
![0.5ZTarg VyDiff.png](/./images/thumb/a/a1/0.5ZTarg_VyDiff.png/200px-0.5ZTarg_VyDiff.png) |
![1cmZTarg VyDiff.png](/./images/thumb/1/16/1cmZTarg_VyDiff.png/200px-1cmZTarg_VyDiff.png) |
![2cmZTarg VyDiff.png](/./images/thumb/3/36/2cmZTarg_VyDiff.png/200px-2cmZTarg_VyDiff.png) |
![3cmZTarg VyDiff.png](/./images/thumb/b/bb/3cmZTarg_VyDiff.png/200px-3cmZTarg_VyDiff.png) |
![4cmZTarg VyDiff.png](/./images/thumb/2/28/4cmZTarg_VyDiff.png/200px-4cmZTarg_VyDiff.png) |
|
Vz Difference (cm) |
![0.5ZTarg VzDiff.png](/./images/thumb/1/1f/0.5ZTarg_VzDiff.png/200px-0.5ZTarg_VzDiff.png) |
![1cmZTarg VzDiff.png](/./images/thumb/1/1a/1cmZTarg_VzDiff.png/200px-1cmZTarg_VzDiff.png) |
![2cmZTarg VzDiff.png](/./images/thumb/c/c3/2cmZTarg_VzDiff.png/200px-2cmZTarg_VzDiff.png) |
![3cmZTarg VzDiff.png](/./images/thumb/c/c1/3cmZTarg_VzDiff.png/200px-3cmZTarg_VzDiff.png) |
![4cmZTarg VzDiff.png](/./images/thumb/3/35/4cmZTarg_VzDiff.png/200px-4cmZTarg_VzDiff.png) |
|
It would seem that increasing the length of the target in the Z direction has an effect on the resolution of the Y vertex position along with how far the center of the Gaussian peak will shift for the Y vertex differences.
Localized Vertex Resolution Investigation of Line Targets
GEMC was ran to create electrons being produced in a line along certain axes. These include three separate 2cm targets centered at (0,0,0) in the X, Y , and Z directions. The final target is a line along the Z axis centered at (0,0,0) that is 6cm long. The generated electrons were shot at 25 degrees in theta and 0 degrees in phi at an energy of 6GeV.
Here is an example of how the cuts were made. Consider the case of a 2cm line target in the Z direction centered at (0,0,0). Closed intervals begin at the end of the target and are 0.1cm long. So the first interval would be [-1.0,-0.9], then the next would be [-0.9, -0.8] and so on until the entire target is covered. The events in the EVENTHB bank were cut so that in any given interval there would be a margin of +/- 1cm to remove any outliers that may cause the histograms to have long tails.
Below are the histograms for the 2cm line target in Y,X=0,Z=0. The electrons were fired with an energy of 6 GeV at 25 degrees in theta at 0 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x Local Vert.png](/./images/thumb/0/0b/GenPart.x_Local_Vert.png/200px-GenPart.x_Local_Vert.png) |
![GenPart.y Local Vert.png](/./images/thumb/b/b3/GenPart.y_Local_Vert.png/200px-GenPart.y_Local_Vert.png) |
![GenPart.z Local Vert.png](/./images/thumb/2/2a/GenPart.z_Local_Vert.png/200px-GenPart.z_Local_Vert.png) |
![Event.x Local Vert.png](/./images/thumb/f/fd/Event.x_Local_Vert.png/200px-Event.x_Local_Vert.png) |
![Event.y Local Vert.png](/./images/thumb/4/4a/Event.y_Local_Vert.png/200px-Event.y_Local_Vert.png) |
|
Interval |
Resolution (cm) |
Vy Difference |
*** |
Interval |
Resolution (cm) |
Vy Difference
|
[-1.0,-0.9] |
0.09406 +/- 0.00128 |
![VyDiff--1.0,-0.9-.png](/./images/thumb/3/3c/VyDiff--1.0%2C-0.9-.png/200px-VyDiff--1.0%2C-0.9-.png) |
*** |
[0.9,1.0] |
0.1001 +/- 0.0016 |
|
[-0.9,-0.8] |
0.0868 +/- 0.0013 |
![VyDiff--0.9,-0.8-.png](/./images/thumb/c/c8/VyDiff--0.9%2C-0.8-.png/200px-VyDiff--0.9%2C-0.8-.png) |
*** |
[0.8,0.9] |
0.1221 +/- 0.0018 |
|
[-0.8,-0.7] |
0.08961 +/- 0.00128 |
![VyDiff--0.8,-0.7-.png](/./images/thumb/6/6b/VyDiff--0.8%2C-0.7-.png/200px-VyDiff--0.8%2C-0.7-.png) |
*** |
[0.7,0.8] |
0.1144 +/- 0.0017 |
|
[-0.7,-0.6] |
0.09853 +/- 0.00148 |
![VyDiff--0.7,-0.6-.png](/./images/thumb/7/7a/VyDiff--0.7%2C-0.6-.png/200px-VyDiff--0.7%2C-0.6-.png) |
*** |
[0.6,0.7] |
0.169 +/- 0.003 |
|
[-0.6,-0.5] |
0.1038 +/- 0.0016 |
![VyDiff--0.6,-0.5-.png](/./images/thumb/0/04/VyDiff--0.6%2C-0.5-.png/200px-VyDiff--0.6%2C-0.5-.png) |
*** |
[0.5,0.6] |
0.171 +/- 0.003 |
|
[-0.5,-0.4] |
0.1202 +/- 0.0018 |
![VyDiff--0.5,-0.4-.png](/./images/thumb/c/c6/VyDiff--0.5%2C-0.4-.png/200px-VyDiff--0.5%2C-0.4-.png) |
*** |
[0.4,0.5] |
0.1105 +/- 0.0016 |
|
[-0.4,-0.3] |
0.1755 +/- 0.0026 |
![VyDiff--0.4,-0.3-.png](/./images/thumb/1/1e/VyDiff--0.4%2C-0.3-.png/200px-VyDiff--0.4%2C-0.3-.png) |
*** |
[0.3,0.4] |
0.09508 +/- 0.00137 |
|
[-0.3,-0.2] |
0.1847 +/- 0.0028 |
![VyDiff--0.3,-0.2-.png](/./images/thumb/e/ec/VyDiff--0.3%2C-0.2-.png/200px-VyDiff--0.3%2C-0.2-.png) |
*** |
[0.2,0.3] |
0.09065 +/- 0.0140 |
|
[-0.2,-0.1] |
0.1255 +/- 0.0019 |
![VyDiff--0.2,-0.1-.png](/./images/thumb/5/5f/VyDiff--0.2%2C-0.1-.png/200px-VyDiff--0.2%2C-0.1-.png) |
*** |
[0.1,0.2] |
0.093002 +/- 0.0013 |
|
[-0.1,0.0] |
0.09663 +/- 0.00160 |
![VyDiff--0.1,0.0-.png](/./images/thumb/9/95/VyDiff--0.1%2C0.0-.png/200px-VyDiff--0.1%2C0.0-.png) |
*** |
[0.0,0.1] |
0.09008 +/- 0.0012 |
|
Below are the histograms for a 2cm target along the Y axis, X = 0 Z = 0. The electrons were fired with an energy of 6 GeV at 25 degrees in theta and 180 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 180DegRot.png](/./images/thumb/2/23/GenPart.x_180DegRot.png/200px-GenPart.x_180DegRot.png) |
![GenPart.y 180DegRot.png](/./images/thumb/d/d9/GenPart.y_180DegRot.png/200px-GenPart.y_180DegRot.png) |
![GenPart.z 180DegRot.png](/./images/thumb/6/65/GenPart.z_180DegRot.png/200px-GenPart.z_180DegRot.png) |
![Event.x 180DegRot.png](/./images/thumb/2/27/Event.x_180DegRot.png/200px-Event.x_180DegRot.png) |
![Event.y 180DegRot.png](/./images/thumb/f/f4/Event.y_180DegRot.png/200px-Event.y_180DegRot.png) |
|
Interval |
Resolution (cm) |
Vy Difference |
*** |
Interval |
Resolution (cm) |
Vy Difference
|
[-1.0,-0.9] |
0.07741 +/- 0.00166 |
![VyDiff--1.0,-0.9- 180Deg.png](/./images/thumb/f/ff/VyDiff--1.0%2C-0.9-_180Deg.png/200px-VyDiff--1.0%2C-0.9-_180Deg.png) |
*** |
[0.9,1.0] |
0.2319 +/- 0.0189 |
|
[-0.9,-0.8] |
0.0976 +/- 0.0017 |
![VyDiff--0.9,-0.8- 180Deg.png](/./images/thumb/4/4d/VyDiff--0.9%2C-0.8-_180Deg.png/200px-VyDiff--0.9%2C-0.8-_180Deg.png) |
*** |
[0.8,0.9] |
0.2147 +/- 0.0185 |
|
[-0.8,-0.7] |
0.09924 +/- 0.00150 |
![VyDiff--0.8,-0.7- 180Deg.png](/./images/thumb/8/8f/VyDiff--0.8%2C-0.7-_180Deg.png/200px-VyDiff--0.8%2C-0.7-_180Deg.png) |
*** |
[0.7,0.8] |
0.2364 +/- 0.0188 |
|
[-0.7,-0.6] |
0.1386 +/- 0.0024 |
![VyDiff--0.7,-0.6- 180Deg.png](/./images/thumb/7/7c/VyDiff--0.7%2C-0.6-_180Deg.png/200px-VyDiff--0.7%2C-0.6-_180Deg.png) |
*** |
[0.6,0.7] |
0.2323 +/- 0.0189 |
|
[-0.6,-0.5] |
0.1278 +/- 0.0027 |
![VyDiff--0.6,-0.5- 180Deg.png](/./images/thumb/9/9f/VyDiff--0.6%2C-0.5-_180Deg.png/200px-VyDiff--0.6%2C-0.5-_180Deg.png) |
*** |
[0.5,0.6] |
0.06016 +/- 0.00299 |
|
[-0.5,-0.4] |
0.09882 +/- 0.00142 |
![VyDiff--0.5,-0.4- 180Deg.png](/./images/thumb/4/40/VyDiff--0.5%2C-0.4-_180Deg.png/200px-VyDiff--0.5%2C-0.4-_180Deg.png) |
*** |
[0.4,0.5] |
0.3986 +/- 0.00104 |
|
[-0.4,-0.3] |
0.09322 +/- 0.0013 |
![VyDiff--0.4,-0.3- 180Deg.png](/./images/thumb/6/64/VyDiff--0.4%2C-0.3-_180Deg.png/200px-VyDiff--0.4%2C-0.3-_180Deg.png) |
*** |
[0.3,0.4] |
0.3056 +/- 0.0047 |
|
[-0.3,-0.2] |
0.09399 +/- 0.00145 |
![VyDiff--0.3,-0.2- 180Deg.png](/./images/thumb/a/a8/VyDiff--0.3%2C-0.2-_180Deg.png/200px-VyDiff--0.3%2C-0.2-_180Deg.png) |
*** |
[0.2,0.3] |
0.1097 +/- 0.0029 |
|
[-0.2,-0.1] |
0.08935 +/- 0.00131 |
![VyDiff--0.2,-0.1- 180Deg.png](/./images/thumb/3/39/VyDiff--0.2%2C-0.1-_180Deg.png/200px-VyDiff--0.2%2C-0.1-_180Deg.png) |
*** |
[0.1,0.2] |
0.1146 +/- 0.0025 |
|
[-0.1,0.0] |
0.08913 +/- 0.00130 |
![VyDiff--0.1,0.0- 180Deg.png](/./images/thumb/f/f6/VyDiff--0.1%2C0.0-_180Deg.png/200px-VyDiff--0.1%2C0.0-_180Deg.png) |
*** |
[0.0,0.1] |
0.09557 +/- 0.0015 |
|
Below are the Histograms for a 2cm long target in the X Direction with a 6GeV electron fired at 25 degrees in theta and 90 degrees in phi
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 90DegRot.png](/./images/thumb/d/d0/GenPart.x_90DegRot.png/200px-GenPart.x_90DegRot.png) |
![GenPart.y 90DegRot.png](/./images/thumb/2/2e/GenPart.y_90DegRot.png/200px-GenPart.y_90DegRot.png) |
![GenPart.z 90DegRot.png](/./images/thumb/1/12/GenPart.z_90DegRot.png/200px-GenPart.z_90DegRot.png) |
![Event.x 90DegRot.png](/./images/thumb/c/c6/Event.x_90DegRot.png/200px-Event.x_90DegRot.png) |
![Event.y 90DegRot.png](/./images/thumb/b/ba/Event.y_90DegRot.png/200px-Event.y_90DegRot.png) |
|
Interval |
Resolution (cm) |
Vx Difference |
*** |
Interval |
Resolution (cm) |
Vx Difference
|
[-1.0,-0.9] |
0.1341 +/- 0.0140 |
![VxDiff--1.0,-0.9-.png](/./images/thumb/2/22/VxDiff--1.0%2C-0.9-.png/200px-VxDiff--1.0%2C-0.9-.png) |
*** |
[0.9,1.0] |
0.01572 +/- 0.0002 |
|
[-0.9,-0.8] |
0.1304 +/- 0.0051 |
![VxDiff--0.9,-0.8-.png](/./images/thumb/3/31/VxDiff--0.9%2C-0.8-.png/200px-VxDiff--0.9%2C-0.8-.png) |
*** |
[0.8,0.9] |
0.01844 +/- 0.00031 |
|
[-0.8,-0.7] |
0.1182 +/- 0.0036 |
![VxDiff--0.8,-0.7-.png](/./images/thumb/8/80/VxDiff--0.8%2C-0.7-.png/200px-VxDiff--0.8%2C-0.7-.png) |
*** |
[0.7,0.8] |
0.01722 +/- 0.0028 |
|
[-0.7,-0.6] |
0.09062 +/- 0.0031 |
![VxDiff--0.7,-0.6-.png](/./images/thumb/3/36/VxDiff--0.7%2C-0.6-.png/200px-VxDiff--0.7%2C-0.6-.png) |
*** |
[0.6,0.7] |
0.02386 +/- 0.00088 |
|
[-0.6,-0.5] |
0.06816 +/- 0.00191 |
![VxDiff--0.6,-0.5-.png](/./images/thumb/c/ce/VxDiff--0.6%2C-0.5-.png/200px-VxDiff--0.6%2C-0.5-.png) |
*** |
[0.5,0.6] |
0.024 +/- 0.001 |
|
[-0.5,-0.4] |
n/a |
![VxDiff--0.5,-0.4-.png](/./images/thumb/a/a1/VxDiff--0.5%2C-0.4-.png/200px-VxDiff--0.5%2C-0.4-.png) |
*** |
[0.4,0.5] |
0.04406 +/- 0.00182 |
|
[-0.4,-0.3] |
0.0635 +/- 0.0013 |
![VxDiff--0.4,-0.3-.png](/./images/thumb/8/81/VxDiff--0.4%2C-0.3-.png/200px-VxDiff--0.4%2C-0.3-.png) |
*** |
[0.3,0.4] |
0.04517 +/- 0.00118 |
|
[-0.3,-0.2] |
0.0618 +/- 0.0012 |
![VxDiff--0.3,-0.2-.png](/./images/thumb/f/f6/VxDiff--0.3%2C-0.2-.png/200px-VxDiff--0.3%2C-0.2-.png) |
*** |
[0.2,0.3] |
0.04722 +/- 0.00107 |
|
[-0.2,-0.1] |
0.07473 +/- 0.00178 |
![VxDiff--0.2,-0.1-.png](/./images/thumb/3/30/VxDiff--0.2%2C-0.1-.png/200px-VxDiff--0.2%2C-0.1-.png) |
*** |
[0.1,0.2] |
0.05667 +/- 0.00106 |
|
[-0.1,0.0] |
0.08787 +/- 0.00132 |
![VxDiff--0.1,0.0-.png](/./images/thumb/b/bc/VxDiff--0.1%2C0.0-.png/200px-VxDiff--0.1%2C0.0-.png) |
*** |
[0.0,0.1] |
0.08356 +/- 0.00159 |
|
Below are the Vx Differences using a 2cm target in X with incident 6 GeV electrons at 25 degrees in theta and 270 degrees in phi
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 270DegRot.png](/./images/thumb/a/a1/GenPart.x_270DegRot.png/200px-GenPart.x_270DegRot.png) |
![GenPart.y 270DegRot.png](/./images/thumb/8/82/GenPart.y_270DegRot.png/200px-GenPart.y_270DegRot.png) |
![GenPart.z 270DegRot.png](/./images/thumb/2/22/GenPart.z_270DegRot.png/200px-GenPart.z_270DegRot.png) |
![Event.x 270DegRot.png](/./images/thumb/1/13/Event.x_270DegRot.png/200px-Event.x_270DegRot.png) |
![Event.y 270DegRot.png](/./images/thumb/c/ce/Event.y_270DegRot.png/200px-Event.y_270DegRot.png) |
|
Interval |
Resolution (cm) |
Vx Difference |
*** |
Interval |
Resolution (cm) |
Vx Difference
|
[-1.0,-0.9] |
0.01571 +/- 0.0002 |
![VxDiff--1.0,-0.9- 270Deg.png](/./images/thumb/6/6f/VxDiff--1.0%2C-0.9-_270Deg.png/200px-VxDiff--1.0%2C-0.9-_270Deg.png) |
*** |
[0.9,1.0] |
0.1257 +/- 0.0100 |
|
[-0.9,-0.8] |
0.0163 +/- 0.0003 |
![VxDiff--0.9,-0.8- 270Deg.png](/./images/thumb/8/8c/VxDiff--0.9%2C-0.8-_270Deg.png/200px-VxDiff--0.9%2C-0.8-_270Deg.png) |
*** |
[0.8,0.9] |
0.112 +/- 0.004 |
|
[-0.8,-0.7] |
0.01821 +/- 0.0003 |
![VxDiff--0.8,-0.7- 270Deg.png](/./images/thumb/f/ff/VxDiff--0.8%2C-0.7-_270Deg.png/200px-VxDiff--0.8%2C-0.7-_270Deg.png) |
*** |
[0.7,0.8] |
0.1162 +/- 0.0034 |
|
[-0.7,-0.6] |
0.03065 +/- .000163 |
![VxDiff--0.7,-0.6- 270Deg.png](/./images/thumb/a/a6/VxDiff--0.7%2C-0.6-_270Deg.png/200px-VxDiff--0.7%2C-0.6-_270Deg.png) |
*** |
[0.6,0.7] |
0.08958 +/- 0.00316 |
|
[-0.6,-0.5] |
0.02109 +/- 0.00217 |
![VxDiff--0.6,-0.5- 270Deg.png](/./images/thumb/d/da/VxDiff--0.6%2C-0.5-_270Deg.png/200px-VxDiff--0.6%2C-0.5-_270Deg.png) |
*** |
[0.5,0.6] |
0.07347 +/- 0.00210 |
|
[-0.5,-0.4] |
0.03772 +/- 0.00133 |
![VxDiff--0.5,-0.4- 270Deg.png](/./images/thumb/8/8f/VxDiff--0.5%2C-0.4-_270Deg.png/200px-VxDiff--0.5%2C-0.4-_270Deg.png) |
*** |
[0.4,0.5] |
0.07271 +/- 0.00159 |
|
[-0.4,-0.3] |
0.04817 +/- 0.00125 |
![VxDiff--0.4,-0.3- 270Deg.png](/./images/thumb/a/ac/VxDiff--0.4%2C-0.3-_270Deg.png/200px-VxDiff--0.4%2C-0.3-_270Deg.png) |
*** |
[0.3,0.4] |
0.06196 +/- 0.00146 |
|
[-0.3,-0.2] |
0.05154 +/- 0.00113 |
![VxDiff--0.3,-0.2- 270Deg.png](/./images/thumb/f/f5/VxDiff--0.3%2C-0.2-_270Deg.png/200px-VxDiff--0.3%2C-0.2-_270Deg.png) |
*** |
[0.2,0.3] |
0.06087 +/- 0.00114 |
|
[-0.2,-0.1] |
0.05677 +/- 0.00106 |
![VxDiff--0.2,-0.1- 270Deg.png](/./images/thumb/3/3d/VxDiff--0.2%2C-0.1-_270Deg.png/200px-VxDiff--0.2%2C-0.1-_270Deg.png) |
*** |
[0.1,0.2] |
0.07298 +/- 0.00149 |
|
[-0.1,0.0] |
0.08348 +/- 0.00144 |
![VxDiff--0.1,0.0- 270Deg.png](/./images/thumb/b/be/VxDiff--0.1%2C0.0-_270Deg.png/200px-VxDiff--0.1%2C0.0-_270Deg.png) |
*** |
[0.0,0.1] |
0.09017 +/- 0.00128 |
|
Below are the histograms for a 6cm target in the Z direction using a 6 GeV electron fired at 25 degrees in theta and 0 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 6cmZTarg NoRot.png](/./images/thumb/a/a4/GenPart.x_6cmZTarg_NoRot.png/200px-GenPart.x_6cmZTarg_NoRot.png) |
![GenPart.y 6cmZTarg NoRot.png](/./images/thumb/6/67/GenPart.y_6cmZTarg_NoRot.png/200px-GenPart.y_6cmZTarg_NoRot.png) |
![GenPart.z 6cmZTarg NoRot.png](/./images/thumb/7/7d/GenPart.z_6cmZTarg_NoRot.png/200px-GenPart.z_6cmZTarg_NoRot.png) |
![Event.x 6cmZTarg NoRot.png](/./images/thumb/6/6b/Event.x_6cmZTarg_NoRot.png/200px-Event.x_6cmZTarg_NoRot.png) |
![Event.y 6cmZTarg NoRot.png](/./images/thumb/4/4f/Event.y_6cmZTarg_NoRot.png/200px-Event.y_6cmZTarg_NoRot.png) |
|
Interval |
Resolution (cm) |
Vz Difference |
*** |
Interval |
Resolution (cm) |
Vz Difference
|
[-3.0,-2.5] |
0.1427 +/- 0.0009 |
![VzDiff--3.0,-2.5- NoRot.png](/./images/thumb/a/a0/VzDiff--3.0%2C-2.5-_NoRot.png/200px-VzDiff--3.0%2C-2.5-_NoRot.png) |
*** |
[2.5,3.0] |
0.1467 +/- 0.0008 |
|
[-2.5,-2.0] |
0.1412 +/- 0.0008 |
![VzDiff--2.5,-2.0- NoRot.png](/./images/thumb/c/c6/VzDiff--2.5%2C-2.0-_NoRot.png/200px-VzDiff--2.5%2C-2.0-_NoRot.png) |
*** |
[2.0,2.5] |
0.1419 +/- 0.0009 |
|
[-2.0,-1.5] |
0.1365 +/- 0.0007 |
![VzDiff--2.0,-1.5- NoRot.png](/./images/thumb/f/f3/VzDiff--2.0%2C-1.5-_NoRot.png/200px-VzDiff--2.0%2C-1.5-_NoRot.png) |
*** |
[1.5,2.0] |
0.1372 +/- 0.0008 |
|
[-1.5,-1.0] |
0.1439 +/- 0.0008 |
![VzDiff--1.5,-1.0- NoRot.png](/./images/thumb/3/31/VzDiff--1.5%2C-1.0-_NoRot.png/200px-VzDiff--1.5%2C-1.0-_NoRot.png) |
*** |
[1.0,1.5] |
0.1394 +/- 0.0008 |
|
[-1.0,-0.5] |
0.1429 +/- 0.0008 |
![VzDiff--1.0,-0.5- NoRot.png](/./images/thumb/e/ee/VzDiff--1.0%2C-0.5-_NoRot.png/200px-VzDiff--1.0%2C-0.5-_NoRot.png) |
*** |
[0.5,1.0] |
0.1584 +/- 0.0010 |
|
[-0.5,0.0] |
0.1332 +/- 0.0007 |
![VzDiff--0.5,0.0- NoRot.png](/./images/thumb/5/53/VzDiff--0.5%2C0.0-_NoRot.png/200px-VzDiff--0.5%2C0.0-_NoRot.png) |
*** |
[0.0,0.5] |
0.1378 +/- 0.0009 |
|
Below are the histograms for a 6cm target in the Z direction using a 6 GeV electron fired at 25 degrees in theta and 90 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 90DegRot 6cmZTarg.png](/./images/thumb/c/c1/GenPart.x_90DegRot_6cmZTarg.png/200px-GenPart.x_90DegRot_6cmZTarg.png) |
![GenPart.y 90DegRot 6cmZTarg.png](/./images/thumb/d/d1/GenPart.y_90DegRot_6cmZTarg.png/200px-GenPart.y_90DegRot_6cmZTarg.png) |
![GenPart.z 90DegRot 6cmZTarg.png](/./images/thumb/c/cf/GenPart.z_90DegRot_6cmZTarg.png/200px-GenPart.z_90DegRot_6cmZTarg.png) |
![Event.x 90DegRot 6cmZTarg.png](/./images/thumb/9/93/Event.x_90DegRot_6cmZTarg.png/200px-Event.x_90DegRot_6cmZTarg.png) |
![Event.y 90DegRot 6cmZTarg.png](/./images/thumb/b/b9/Event.y_90DegRot_6cmZTarg.png/200px-Event.y_90DegRot_6cmZTarg.png) |
|
Interval |
Resolution (cm) |
Vz Difference |
*** |
Interval |
Resolution (cm) |
Vz Difference
|
[-3.0,-2.5] |
0.1192 +/- 0.0005 |
![VzDiff--3.0,-2.5- 90DegRot.png](/./images/thumb/8/80/VzDiff--3.0%2C-2.5-_90DegRot.png/200px-VzDiff--3.0%2C-2.5-_90DegRot.png) |
*** |
[2.5,3.0] |
0.1211 +/- 0.0005 |
|
[-2.5,-2.0] |
0.1205 +/- 0.0005 |
![VzDiff--2.5,-2.0- 90DegRot.png](/./images/thumb/3/36/VzDiff--2.5%2C-2.0-_90DegRot.png/200px-VzDiff--2.5%2C-2.0-_90DegRot.png) |
*** |
[2.0,2.5] |
0.1251 +/- 0.0005 |
|
[-2.0,-1.5] |
0.122 +/- 0.001 |
![VzDiff--2.0,-1.5- 90DegRot.png](/./images/thumb/c/ce/VzDiff--2.0%2C-1.5-_90DegRot.png/200px-VzDiff--2.0%2C-1.5-_90DegRot.png) |
*** |
[1.5,2.0] |
0.1312 +/- 0.0006 |
|
[-1.5,-1.0] |
0.1249 +/- 0.0006 |
![VzDiff--1.5,-1.0- 90DegRot.png](/./images/thumb/3/3b/VzDiff--1.5%2C-1.0-_90DegRot.png/200px-VzDiff--1.5%2C-1.0-_90DegRot.png) |
*** |
[1.0,1.5] |
0.1233 +/- 0.0005 |
|
[-1.0,-0.5] |
0.1278 +/- 0.0006 |
![VzDiff--1.0,-0.5- 90DegRot.png](/./images/thumb/5/59/VzDiff--1.0%2C-0.5-_90DegRot.png/200px-VzDiff--1.0%2C-0.5-_90DegRot.png) |
*** |
[0.5,1.0] |
0.1254 +/- 0.0005 |
|
[-0.5,0.0] |
0.1289 +/- 0.0006 |
![VzDiff--0.5,.0.0- 90DegRot.png](/./images/thumb/4/4f/VzDiff--0.5%2C.0.0-_90DegRot.png/200px-VzDiff--0.5%2C.0.0-_90DegRot.png) |
*** |
[0.0,0.5] |
0.1237 +/- 0.0005 |
|
Below are the histograms for a 6 GeV electron fired at angles 25 degrees in theta and 270 degrees in phi. The target was 6cm in the Z direction.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 6cm ZTarg 270DegRot.png](/./images/thumb/9/9e/GenPart.x_6cm_ZTarg_270DegRot.png/200px-GenPart.x_6cm_ZTarg_270DegRot.png) |
![GenPart.y 6cm ZTarg 270DegRot.png](/./images/thumb/a/a7/GenPart.y_6cm_ZTarg_270DegRot.png/200px-GenPart.y_6cm_ZTarg_270DegRot.png) |
![GenPart.z 6cm ZTarg 270DegRot.png](/./images/thumb/8/83/GenPart.z_6cm_ZTarg_270DegRot.png/200px-GenPart.z_6cm_ZTarg_270DegRot.png) |
![Event.x 6cm ZTarg 270Rot.png](/./images/thumb/f/fa/Event.x_6cm_ZTarg_270Rot.png/200px-Event.x_6cm_ZTarg_270Rot.png) |
![Event.y 6cm ZTarg 270DegRot.png](/./images/thumb/5/59/Event.y_6cm_ZTarg_270DegRot.png/200px-Event.y_6cm_ZTarg_270DegRot.png) |
|
Interval |
Resolution (cm) |
Vz Difference |
*** |
Interval |
Resolution (cm) |
Vz Difference
|
[-3.0,-2.5] |
0.1171 +/- 0.0008 |
![VzDiff--3.0,-2.5- 270DegRot.png](/./images/thumb/d/d5/VzDiff--3.0%2C-2.5-_270DegRot.png/200px-VzDiff--3.0%2C-2.5-_270DegRot.png) |
*** |
[2.5,3.0] |
0.1186 +/- 0.0008 |
|
[-2.5,-2.0] |
0.1162 +/- 0.0008 |
![VzDiff--2.5,-2.0- 270DegRot.png](/./images/thumb/b/b1/VzDiff--2.5%2C-2.0-_270DegRot.png/200px-VzDiff--2.5%2C-2.0-_270DegRot.png) |
*** |
[2.0,2.5] |
0.1226 +/- 0.0009 |
|
[-2.0,-1.5] |
0.1207 +/- 0.0009 |
![VzDiff--2.0,-1.5- 270DegRot.png](/./images/thumb/4/44/VzDiff--2.0%2C-1.5-_270DegRot.png/200px-VzDiff--2.0%2C-1.5-_270DegRot.png) |
*** |
[1.5,2.0] |
0.1317 +/- 0.0010 |
|
[-1.5,-1.0] |
0.1294 +/- 0.0010 |
![VzDiff--1.5,-1.0- 270DegRot.png](/./images/thumb/7/79/VzDiff--1.5%2C-1.0-_270DegRot.png/200px-VzDiff--1.5%2C-1.0-_270DegRot.png) |
*** |
[1.0,1.5] |
0.1239 +/- 0.0009 |
|
[-1.0,-0.5] |
0.131 +/- 0.001 |
![VzDiff--1.0,-0.5- 270DegRot.png](/./images/thumb/c/cb/VzDiff--1.0%2C-0.5-_270DegRot.png/200px-VzDiff--1.0%2C-0.5-_270DegRot.png) |
*** |
[0.5,1.0] |
0.1256 +/- 0.0009 |
|
[-0.5,0.0] |
0.131 +/- 0.001 |
![VzDiff--0.5,0.0- 270DegRot.png](/./images/thumb/e/ec/VzDiff--0.5%2C0.0-_270DegRot.png/200px-VzDiff--0.5%2C0.0-_270DegRot.png) |
*** |
[0.0,0.5] |
0.1261 +/- 0.0010 |
|
Below are the histograms for a 6 GeV electron fired at 25 degrees in theta and 0 degrees in phi. The target is 2cm long on the Y axis.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x Local Vert.png](/./images/thumb/0/0b/GenPart.x_Local_Vert.png/200px-GenPart.x_Local_Vert.png) |
![GenPart.y Local Vert.png](/./images/thumb/b/b3/GenPart.y_Local_Vert.png/200px-GenPart.y_Local_Vert.png) |
![GenPart.z Local Vert.png](/./images/thumb/2/2a/GenPart.z_Local_Vert.png/200px-GenPart.z_Local_Vert.png) |
![Event.x Local Vert.png](/./images/thumb/f/fd/Event.x_Local_Vert.png/200px-Event.x_Local_Vert.png) |
![Event.y Local Vert.png](/./images/thumb/4/4a/Event.y_Local_Vert.png/200px-Event.y_Local_Vert.png) |
|
Interval |
Resolution (cm) |
Vy Difference |
*** |
Interval |
Resolution (cm) |
Vy Difference
|
[-1.0,-0.9] |
0.09406 +/- 0.00128 |
![VyDiff--1.0,-0.9-.png](/./images/thumb/3/3c/VyDiff--1.0%2C-0.9-.png/200px-VyDiff--1.0%2C-0.9-.png) |
*** |
[0.9,1.0] |
0.1001 +/- 0.0016 |
|
[-0.9,-0.8] |
0.0868 +/- 0.0013 |
![VyDiff--0.9,-0.8-.png](/./images/thumb/c/c8/VyDiff--0.9%2C-0.8-.png/200px-VyDiff--0.9%2C-0.8-.png) |
*** |
[0.8,0.9] |
0.1221 +/- 0.0018 |
|
[-0.8,-0.7] |
0.08961 +/- 0.00128 |
![VyDiff--0.8,-0.7-.png](/./images/thumb/6/6b/VyDiff--0.8%2C-0.7-.png/200px-VyDiff--0.8%2C-0.7-.png) |
*** |
[0.7,0.8] |
0.1144 +/- 0.0017 |
|
[-0.7,-0.6] |
0.09853 +/- 0.00148 |
![VyDiff--0.7,-0.6-.png](/./images/thumb/7/7a/VyDiff--0.7%2C-0.6-.png/200px-VyDiff--0.7%2C-0.6-.png) |
*** |
[0.6,0.7] |
0.169 +/- 0.003 |
|
[-0.6,-0.5] |
0.1038 +/- 0.0016 |
![VyDiff--0.6,-0.5-.png](/./images/thumb/0/04/VyDiff--0.6%2C-0.5-.png/200px-VyDiff--0.6%2C-0.5-.png) |
*** |
[0.5,0.6] |
0.171 +/- 0.003 |
|
[-0.5,-0.4] |
0.1202 +/- 0.0018 |
![VyDiff--0.5,-0.4-.png](/./images/thumb/c/c6/VyDiff--0.5%2C-0.4-.png/200px-VyDiff--0.5%2C-0.4-.png) |
*** |
[0.4,0.5] |
0.1105 +/- 0.0016 |
|
[-0.4,-0.3] |
0.1755 +/- 0.0026 |
![VyDiff--0.4,-0.3-.png](/./images/thumb/1/1e/VyDiff--0.4%2C-0.3-.png/200px-VyDiff--0.4%2C-0.3-.png) |
*** |
[0.3,0.4] |
0.09508 +/- 0.00137 |
|
[-0.3,-0.2] |
0.1847 +/- 0.0028 |
![VyDiff--0.3,-0.2-.png](/./images/thumb/e/ec/VyDiff--0.3%2C-0.2-.png/200px-VyDiff--0.3%2C-0.2-.png) |
*** |
[0.2,0.3] |
0.09065 +/- 0.0140 |
|
[-0.2,-0.1] |
0.1255 +/- 0.0019 |
![VyDiff--0.2,-0.1-.png](/./images/thumb/5/5f/VyDiff--0.2%2C-0.1-.png/200px-VyDiff--0.2%2C-0.1-.png) |
*** |
[0.1,0.2] |
0.093002 +/- 0.0013 |
|
[-0.1,0.0] |
0.09663 +/- 0.00160 |
![VyDiff--0.1,0.0-.png](/./images/thumb/9/95/VyDiff--0.1%2C0.0-.png/200px-VyDiff--0.1%2C0.0-.png) |
*** |
[0.0,0.1] |
0.09008 +/- 0.0012 |
|
Below are the histograms for a 2cm target along the Y axis, X = 0 Z = 0. The electrons were fired with an energy of 6 GeV at 25 degrees in theta and 30 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 2cmYTarg 30DegRot.png](/./images/thumb/6/60/GenPart.x_2cmYTarg_30DegRot.png/200px-GenPart.x_2cmYTarg_30DegRot.png) |
![GenPart.y 2cmYTarg 30DegRot.png](/./images/thumb/6/65/GenPart.y_2cmYTarg_30DegRot.png/200px-GenPart.y_2cmYTarg_30DegRot.png) |
![GenPart.z 2cmYTarg 30DegRot.png](/./images/thumb/d/d3/GenPart.z_2cmYTarg_30DegRot.png/200px-GenPart.z_2cmYTarg_30DegRot.png) |
![Event.x 2cmYTarg 30DegRot.png](/./images/thumb/c/ce/Event.x_2cmYTarg_30DegRot.png/200px-Event.x_2cmYTarg_30DegRot.png) |
![Event.y 2cmYTarg 30DegRot.png](/./images/thumb/8/87/Event.y_2cmYTarg_30DegRot.png/200px-Event.y_2cmYTarg_30DegRot.png) |
|
Interval |
Resolution (cm) |
Vy Difference |
*** |
Interval |
Resolution (cm) |
Vy Difference
|
[-1.0,-0.9] |
0.069 +/- 0.002 |
![VyDiff--1.0,-0.9- 30DegRot.png](/./images/thumb/5/51/VyDiff--1.0%2C-0.9-_30DegRot.png/200px-VyDiff--1.0%2C-0.9-_30DegRot.png) |
*** |
[0.9,1.0] |
0.04936 +/- 0.00068 |
|
[-0.9,-0.8] |
0.08185 +/- 0.00218 |
![VyDiff--0.9,-0.8- 30DegRot.png](/./images/thumb/4/45/VyDiff--0.9%2C-0.8-_30DegRot.png/200px-VyDiff--0.9%2C-0.8-_30DegRot.png) |
*** |
[0.8,0.9] |
0.05797 +/- 0.00094 |
|
[-0.8,-0.7] |
0.08764 +/- 0.00212 |
![VyDiff--0.8,-0.7- 30DegRot.png](/./images/thumb/a/a0/VyDiff--0.8%2C-0.7-_30DegRot.png/200px-VyDiff--0.8%2C-0.7-_30DegRot.png) |
*** |
[0.7,0.8] |
0.05896 +/- 0.00086 |
|
[-0.7,-0.6] |
0.09158 +/- 0.00258 |
![VyDiff--0.7,-0.6- 30DegRot.png](/./images/thumb/c/c9/VyDiff--0.7%2C-0.6-_30DegRot.png/200px-VyDiff--0.7%2C-0.6-_30DegRot.png) |
*** |
[0.6,0.7] |
0.05895 +/- 0.00091 |
|
[-0.6,-0.5] |
0.07913 +/- 0.00166 |
![VyDiff--0.6,-0.5- 30DegRot.png](/./images/thumb/3/35/VyDiff--0.6%2C-0.5-_30DegRot.png/200px-VyDiff--0.6%2C-0.5-_30DegRot.png) |
*** |
[0.5,0.6] |
0.05943 +/- 0.00096 |
|
[-0.5,-0.4] |
0.0774 +/- 0.0014 |
![VyDiff--0.5,-0.4- 30DegRot.png](/./images/thumb/2/20/VyDiff--0.5%2C-0.4-_30DegRot.png/200px-VyDiff--0.5%2C-0.4-_30DegRot.png) |
*** |
[0.4,0.5] |
0.06227 +/- 0.00118 |
|
[-0.4,-0.3] |
0.07978 +/- 0.00157 |
![VyDiff--0.4,-0.3- 30DegRot.png](/./images/thumb/0/01/VyDiff--0.4%2C-0.3-_30DegRot.png/200px-VyDiff--0.4%2C-0.3-_30DegRot.png) |
*** |
[0.3,0.4] |
0.08115 +/- 0.00186 |
|
[-0.3,-0.2] |
0.08193 +/- 0.00235 |
![VyDiff--0.3,-0.2- 30DegRot.png](/./images/thumb/c/c8/VyDiff--0.3%2C-0.2-_30DegRot.png/200px-VyDiff--0.3%2C-0.2-_30DegRot.png) |
*** |
[0.2,0.3] |
0.01028 +/- 0.0029 |
|
[-0.2,-0.1] |
0.1812 +/- 0.0025 |
![VyDiff--0.2,-0.1- 30DegRot.png](/./images/thumb/6/65/VyDiff--0.2%2C-0.1-_30DegRot.png/200px-VyDiff--0.2%2C-0.1-_30DegRot.png) |
*** |
[0.1,0.2] |
0.136 +/- 0.003 |
|
[-0.1,0.0] |
0.1503 +/- 0.0021 |
![VyDiff--0.1,0.0- 30DegRot.png](/./images/thumb/5/5e/VyDiff--0.1%2C0.0-_30DegRot.png/200px-VyDiff--0.1%2C0.0-_30DegRot.png) |
*** |
[0.0,0.1] |
0.2052 +/- 0.0033 |
|
Below are the histograms for a 2cm Y target with an incident electron energy of 6 GeV. The angles were theta = 25 degrees and phi = 210 degrees
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x YTarg 210DegRot.png](/./images/thumb/2/25/GenPart.x_YTarg_210DegRot.png/200px-GenPart.x_YTarg_210DegRot.png) |
![GenPart.y YTarg 210DegRot.png](/./images/thumb/a/a3/GenPart.y_YTarg_210DegRot.png/200px-GenPart.y_YTarg_210DegRot.png) |
![GenPart.z YTarg 210DegRot.png](/./images/thumb/6/6a/GenPart.z_YTarg_210DegRot.png/200px-GenPart.z_YTarg_210DegRot.png) |
![Event.x YTarg 210DegRot.png](/./images/thumb/1/17/Event.x_YTarg_210DegRot.png/200px-Event.x_YTarg_210DegRot.png) |
![Event.y YTarg 210DegRot.png](/./images/thumb/9/95/Event.y_YTarg_210DegRot.png/200px-Event.y_YTarg_210DegRot.png) |
|
Interval |
Resolution (cm) |
Vy Difference |
*** |
Interval |
Resolution (cm) |
Vy Difference
|
[-1.0,-0.9] |
0.04815 +/- 0.00067 |
![VyDiff--1.0,-0.9- YTarg 210DegRot.png](/./images/thumb/5/54/VyDiff--1.0%2C-0.9-_YTarg_210DegRot.png/200px-VyDiff--1.0%2C-0.9-_YTarg_210DegRot.png) |
*** |
[0.9,1.0] |
0.07184 +/- 0.00181 |
|
[-0.9,-0.8] |
0.05734 +/- 0.00091 |
![VyDiff--0.9,-0.8- YTarg 210DegRot.png](/./images/thumb/8/8c/VyDiff--0.9%2C-0.8-_YTarg_210DegRot.png/200px-VyDiff--0.9%2C-0.8-_YTarg_210DegRot.png) |
*** |
[0.8,0.9] |
0.08837 +/- 0.00268 |
|
[-0.8,-0.7] |
0.05873 +/- 0.00085 |
![VyDiff--0.8,-0.7- YTarg 210DegRot.png](/./images/thumb/b/ba/VyDiff--0.8%2C-0.7-_YTarg_210DegRot.png/200px-VyDiff--0.8%2C-0.7-_YTarg_210DegRot.png) |
*** |
[0.7,0.8] |
0.0982 +/- 0.0024 |
|
[-0.7,-0.6] |
0.05868 +/- 0.00089 |
![VyDiff--0.7,-0.6- YTarg 210DegRot.png](/./images/thumb/7/79/VyDiff--0.7%2C-0.6-_YTarg_210DegRot.png/200px-VyDiff--0.7%2C-0.6-_YTarg_210DegRot.png) |
*** |
[0.6,0.7] |
0.09622 +/- 0.00305 |
|
[-0.6,-0.5] |
0.05962 +/- 0.00098 |
![VyDiff--0.6,-0.5- YTarg 210DegRot.png](/./images/thumb/c/cc/VyDiff--0.6%2C-0.5-_YTarg_210DegRot.png/200px-VyDiff--0.6%2C-0.5-_YTarg_210DegRot.png) |
*** |
[0.5,0.6] |
0.08028 +/- 0.00156 |
|
[-0.5,-0.4] |
0.0645 +/- 0.0014 |
![VyDiff--0.5,-0.4- YTarg 210DegRot.png](/./images/thumb/a/ad/VyDiff--0.5%2C-0.4-_YTarg_210DegRot.png/200px-VyDiff--0.5%2C-0.4-_YTarg_210DegRot.png) |
*** |
[0.4,0.5] |
0.07917 +/- 0.00163 |
|
[-0.4,-0.3] |
0.0861 +/- 0.0020 |
![VyDiff--0.4,-0.3- YTarg 210DegRot.png](/./images/thumb/7/76/VyDiff--0.4%2C-0.3-_YTarg_210DegRot.png/200px-VyDiff--0.4%2C-0.3-_YTarg_210DegRot.png) |
*** |
[0.3,0.4] |
0.08056 +/- 0.00159 |
|
[-0.3,-0.2] |
0.1003 +/- 0.0024 |
![VyDiff--0.3,-0.2- YTarg 210DegRot.png](/./images/thumb/4/46/VyDiff--0.3%2C-0.2-_YTarg_210DegRot.png/200px-VyDiff--0.3%2C-0.2-_YTarg_210DegRot.png) |
*** |
[0.2,0.3] |
0.08939 +/- 0.00201 |
|
[-0.2,-0.1] |
0.1305 +/- 0.0024 |
![VyDiff--0.2,-0.1- YTarg 210DegRot.png](/./images/thumb/9/9a/VyDiff--0.2%2C-0.1-_YTarg_210DegRot.png/200px-VyDiff--0.2%2C-0.1-_YTarg_210DegRot.png) |
*** |
[0.1,0.2] |
0.186 +/- 0.003 |
|
[-0.1,0.0] |
0.2042 +/- 0.0033 |
![VyDiff--0.1,0.0- YTarg 210DegRot.png](/./images/thumb/1/18/VyDiff--0.1%2C0.0-_YTarg_210DegRot.png/200px-VyDiff--0.1%2C0.0-_YTarg_210DegRot.png) |
*** |
[0.0,0.1] |
0.1476 +/- 0.0021 |
|
Localized Vertex Resolution Investigation of 2 Dimensional Targets
The histograms below were created using a 6 GeV electron fired at 25 degrees in theta and 30 degrees in phi. To make the cuts I simply made circles of increasing radius centered at the origin. I used 0.1cm increments to make the 10 histograms for each vertex position.
Below are the Vx and Vy Differences for a 2cm XY target, Z=0.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x XYTarg 30DegRot.png](/./images/thumb/6/6f/GenPart.x_XYTarg_30DegRot.png/200px-GenPart.x_XYTarg_30DegRot.png) |
![GenPart.y XYTarg 30DegRot.png](/./images/thumb/8/81/GenPart.y_XYTarg_30DegRot.png/200px-GenPart.y_XYTarg_30DegRot.png) |
![GenPart.z XYTarg 30DegRot.png](/./images/thumb/d/dc/GenPart.z_XYTarg_30DegRot.png/200px-GenPart.z_XYTarg_30DegRot.png) |
![Event.x XYTarg 30DegRot.png](/./images/thumb/8/8f/Event.x_XYTarg_30DegRot.png/200px-Event.x_XYTarg_30DegRot.png) |
![Event.y XYTarg 30DegRot.png](/./images/thumb/5/50/Event.y_XYTarg_30DegRot.png/200px-Event.y_XYTarg_30DegRot.png) |
|
Radius (cm) |
Resolution (cm) |
Vx Difference |
*** |
Radius (cm) |
Resolution (cm) |
Vx Difference
|
0.1 |
0.2309 +/- 0.0091 |
![VxDiff R=0.1 XYTarg 30DegRot.png](/./images/thumb/8/89/VxDiff_R%3D0.1_XYTarg_30DegRot.png/200px-VxDiff_R%3D0.1_XYTarg_30DegRot.png) |
*** |
0.6 |
0.259 +/- 0.001 |
|
0.2 |
0.235 +/- 0.004 |
![VxDiff R=0.2 XYTarg 30DegRot.png](/./images/thumb/e/eb/VxDiff_R%3D0.2_XYTarg_30DegRot.png/200px-VxDiff_R%3D0.2_XYTarg_30DegRot.png) |
*** |
0.7 |
0.2769 +/- 0.0014 |
|
0.3 |
0.2242 +/- 0.0028 |
![VxDiff R=0.3 XYTarg 30.png](/./images/thumb/6/60/VxDiff_R%3D0.3_XYTarg_30.png/200px-VxDiff_R%3D0.3_XYTarg_30.png) |
*** |
0.8 |
0.2927 +/- 0.0013 |
|
0.4 |
0.2272 +/- 0.0020 |
![VxDiff R=0.4 XYTarg 30DegRot.png](/./images/thumb/f/fd/VxDiff_R%3D0.4_XYTarg_30DegRot.png/200px-VxDiff_R%3D0.4_XYTarg_30DegRot.png) |
*** |
0.9 |
0.3074 +/- 0.0013 |
|
0.5 |
0.2422 +/- 0.0016 |
![VxDiff R=0.5 XYTarg 30DegRot.png](/./images/thumb/2/28/VxDiff_R%3D0.5_XYTarg_30DegRot.png/200px-VxDiff_R%3D0.5_XYTarg_30DegRot.png) |
*** |
1.0 |
0.3237 +/- 0.0014 |
|
Radius (cm) |
Resolution (cm) |
VyDifference |
*** |
Radius (cm) |
Resolution (cm) |
Vy Difference
|
0.1 |
0.162 +/- 0.006 |
![VyDiff R=0.1 XYTarg 30DegRot.png](/./images/thumb/d/d7/VyDiff_R%3D0.1_XYTarg_30DegRot.png/200px-VyDiff_R%3D0.1_XYTarg_30DegRot.png) |
*** |
0.6 |
0.1733 +/- 0.0020 |
|
0.2 |
0.1798 +/- 0.0031 |
![VyDiff R=0.2 XYTarg 30DegRot.png](/./images/thumb/c/c0/VyDiff_R%3D0.2_XYTarg_30DegRot.png/200px-VyDiff_R%3D0.2_XYTarg_30DegRot.png) |
*** |
0.7 |
0.1661 +/- 0.0017 |
|
0.3 |
0.1947 +/- 0.0028 |
![VyDiff R=0.3 XYTarg 30DegRot.png](/./images/thumb/e/ef/VyDiff_R%3D0.3_XYTarg_30DegRot.png/200px-VyDiff_R%3D0.3_XYTarg_30DegRot.png) |
*** |
0.8 |
0.1615 +/- 0.0015 |
|
0.4 |
0.1959 +/- 0.0033 |
![VyDiff R=0.4 XYTarg 30DegRot.png](/./images/thumb/3/31/VyDiff_R%3D0.4_XYTarg_30DegRot.png/200px-VyDiff_R%3D0.4_XYTarg_30DegRot.png) |
*** |
0.9 |
0.1578 +/- 0.0013 |
|
0.5 |
0.1861 +/- 0.0027 |
![VyDiff R=0.5 XYTarg 30DegRot.png](/./images/thumb/e/eb/VyDiff_R%3D0.5_XYTarg_30DegRot.png/200px-VyDiff_R%3D0.5_XYTarg_30DegRot.png) |
*** |
1.0 |
0.4832 +/- 0.0035 |
|
Below are the Vy and Vz differences for a 2cm target in Y and Z, X=0. The electrons were fired with an energy of 6 GeV and angles of 25 degrees in theta and 30 degrees in phi.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 2cmYZTarg 30DegRot.png](/./images/thumb/3/3b/GenPart.x_2cmYZTarg_30DegRot.png/200px-GenPart.x_2cmYZTarg_30DegRot.png) |
![GenPart.y 2cmYZTarg 30DegRot.png](/./images/thumb/6/69/GenPart.y_2cmYZTarg_30DegRot.png/200px-GenPart.y_2cmYZTarg_30DegRot.png) |
![GenPart.z 2cmYZTarg 30DegRot.png](/./images/thumb/7/74/GenPart.z_2cmYZTarg_30DegRot.png/200px-GenPart.z_2cmYZTarg_30DegRot.png) |
![Event.x 2cmYZTarg 30DegRot.png](/./images/thumb/5/5a/Event.x_2cmYZTarg_30DegRot.png/200px-Event.x_2cmYZTarg_30DegRot.png) |
![Event.y 2cmYZTarg 30DegRot.png](/./images/thumb/9/94/Event.y_2cmYZTarg_30DegRot.png/200px-Event.y_2cmYZTarg_30DegRot.png) |
|
Radius (cm) |
Resolution (cm) |
Vy Difference |
*** |
Radius (cm) |
Resolution (cm) |
Vy Difference
|
0.1 |
0.1722 +/- 0.0065 |
![VyDiff R=0.1 YZTarg 30DegRot.png](/./images/thumb/3/35/VyDiff_R%3D0.1_YZTarg_30DegRot.png/200px-VyDiff_R%3D0.1_YZTarg_30DegRot.png) |
*** |
0.6 |
0.1806 +/- 0.0017 |
|
0.2 |
0.1773 +/- 0.0037 |
![VyDiff R=0.2 YZTarg 30DegRot.png](/./images/thumb/c/ca/VyDiff_R%3D0.2_YZTarg_30DegRot.png/200px-VyDiff_R%3D0.2_YZTarg_30DegRot.png) |
*** |
0.7 |
0.1868 +/- 0.0015 |
|
0.3 |
0.1781 +/- 0.0031 |
![VyDiff R=0.3 YZTarg 30DegRot.png](/./images/thumb/6/67/VyDiff_R%3D0.3_YZTarg_30DegRot.png/200px-VyDiff_R%3D0.3_YZTarg_30DegRot.png) |
*** |
0.8 |
0.1974 +/- 0.0014 |
|
0.4 |
0.1734 +/- 0.0024 |
![VyDiff R=0.4 YZTarg 30DegRot.png](/./images/thumb/5/56/VyDiff_R%3D0.4_YZTarg_30DegRot.png/200px-VyDiff_R%3D0.4_YZTarg_30DegRot.png) |
*** |
0.9 |
0.2028 +/- 0.0013 |
|
0.5 |
0.1764 +/- 0.0020 |
![VyDiff R=0.5 YZTarg 30DegRot.png](/./images/thumb/6/65/VyDiff_R%3D0.5_YZTarg_30DegRot.png/200px-VyDiff_R%3D0.5_YZTarg_30DegRot.png) |
*** |
1.0 |
0.221 +/- 0.001 |
|
Radius (cm) |
Resolution (cm) |
Vz Difference |
*** |
Radius (cm) |
Resolution (cm) |
Vz Difference
|
0.1 |
0.07095 +/- 0.00239 |
![VzDiff R=0.1 YZTarg 30DegRot.png](/./images/thumb/4/47/VzDiff_R%3D0.1_YZTarg_30DegRot.png/200px-VzDiff_R%3D0.1_YZTarg_30DegRot.png) |
*** |
0.6 |
0.261 +/- 0.001 |
|
0.2 |
0.1063 +/- 0.0015 |
![VzDiff R=0.2 YZTarg 30DegRot.png](/./images/thumb/b/b0/VzDiff_R%3D0.2_YZTarg_30DegRot.png/200px-VzDiff_R%3D0.2_YZTarg_30DegRot.png) |
*** |
0.7 |
0.2874 +/- 0.0010 |
|
0.3 |
0.146 +/- 0.001 |
![VzDiff R=0.3 YZTarg 30DegRot.png](/./images/thumb/9/92/VzDiff_R%3D0.3_YZTarg_30DegRot.png/200px-VzDiff_R%3D0.3_YZTarg_30DegRot.png) |
*** |
0.8 |
0.3232 +/- 0.0011 |
|
0.4 |
0.1833 +/- 0.0012 |
![VzDiff R=0.4 YZTarg 30DegRot.png](/./images/thumb/5/5f/VzDiff_R%3D0.4_YZTarg_30DegRot.png/200px-VzDiff_R%3D0.4_YZTarg_30DegRot.png) |
*** |
0.9 |
0.3528 +/- 0.0010 |
|
0.5 |
0.2222 +/- 0.0012 |
![VzDiff R=0.5 YZTarg 30DegRot.png](/./images/thumb/f/f5/VzDiff_R%3D0.5_YZTarg_30DegRot.png/200px-VzDiff_R%3D0.5_YZTarg_30DegRot.png) |
*** |
1.0 |
0.3847 +/- 0.0010 |
|
Below are the Vx and Vz differences for a 2cm XZ target, Y = 0. The electrons were fired with an energy of 6 GeV at angles theta = 25 degrees and phi = 30 degrees.
GenPart.x |
GenPart.y |
GenPart.z |
Event.x |
Event.y |
Event.z
|
![GenPart.x 2cmXZTarg 30DegRot.png](/./images/thumb/9/9a/GenPart.x_2cmXZTarg_30DegRot.png/200px-GenPart.x_2cmXZTarg_30DegRot.png) |
![GenPart.y 2cmXZTarg 30DegRot.png](/./images/thumb/1/1c/GenPart.y_2cmXZTarg_30DegRot.png/200px-GenPart.y_2cmXZTarg_30DegRot.png) |
![GenPart.z 2cmXZTarg 30DegRot.png](/./images/thumb/f/f1/GenPart.z_2cmXZTarg_30DegRot.png/200px-GenPart.z_2cmXZTarg_30DegRot.png) |
![Event.x 2cmXZTarg 30DegRot.png](/./images/thumb/c/c1/Event.x_2cmXZTarg_30DegRot.png/200px-Event.x_2cmXZTarg_30DegRot.png) |
![Event.y 2cmXZTarg 30DegRot.png](/./images/thumb/4/41/Event.y_2cmXZTarg_30DegRot.png/200px-Event.y_2cmXZTarg_30DegRot.png) |
|
Radius (cm) |
Resolution (cm) |
Vz Difference |
*** |
Radius (cm) |
Resolution (cm) |
Vz Difference
|
0.1 |
0.06193 +/- 0.00199 |
![VzDiff R=0.1 XZTarg 30DegRot.png](/./images/thumb/e/e7/VzDiff_R%3D0.1_XZTarg_30DegRot.png/200px-VzDiff_R%3D0.1_XZTarg_30DegRot.png) |
*** |
0.6 |
0.2495 +/- 0.0012 |
|
0.2 |
0.1059 +/- 0.0015 |
![VzDiff R=0.2 XZTarg 30DegRot.png](/./images/thumb/a/a0/VzDiff_R%3D0.2_XZTarg_30DegRot.png/200px-VzDiff_R%3D0.2_XZTarg_30DegRot.png) |
*** |
0.7 |
0.2862 +/- 0.0011 |
|
0.3 |
0.1412 +/- 0.0013 |
![VzDiff R=0.3 XZTarg 30DegRot.png](/./images/thumb/e/e1/VzDiff_R%3D0.3_XZTarg_30DegRot.png/200px-VzDiff_R%3D0.3_XZTarg_30DegRot.png) |
*** |
0.8 |
0.3172 +/- 0.001 |
|
0.4 |
0.1704 +/- 0.0012 |
![VzDiff R=0.4 XZTarg 30DegRot.png](/./images/thumb/5/5e/VzDiff_R%3D0.4_XZTarg_30DegRot.png/200px-VzDiff_R%3D0.4_XZTarg_30DegRot.png) |
*** |
0.9 |
0.3512 +/- 0.0012 |
|
0.5 |
0.2183 +/- 0.0013 |
![VzDiff R=0.5 XZTarg 30DegRot.png](/./images/thumb/2/27/VzDiff_R%3D0.5_XZTarg_30DegRot.png/200px-VzDiff_R%3D0.5_XZTarg_30DegRot.png) |
*** |
1.0 |
0.4066 +/- 0.0013 |
|
Radius (cm) |
Resolution (cm) |
Vx Difference |
*** |
Radius (cm) |
Resolution (cm) |
Vx Difference
|
0.1 |
0.2125 +/- 0.0090 |
![VxDiff R=0.1 XZTarg 30DegRot.png](/./images/thumb/3/38/VxDiff_R%3D0.1_XZTarg_30DegRot.png/200px-VxDiff_R%3D0.1_XZTarg_30DegRot.png) |
*** |
0.6 |
0.2365 +/- 0.0016 |
|
0.2 |
0.2392 +/- 0.0044 |
![VxDiff R=0.2 XZTarg 30DegRot.png](/./images/thumb/5/59/VxDiff_R%3D0.2_XZTarg_30DegRot.png/200px-VxDiff_R%3D0.2_XZTarg_30DegRot.png) |
*** |
0.7 |
0.2307 +/- 0.0013 |
|
0.3 |
0.251 +/- 0.003 |
![VxDiff R=0.3 XZTarg 30DegRot.png](/./images/thumb/1/10/VxDiff_R%3D0.3_XZTarg_30DegRot.png/200px-VxDiff_R%3D0.3_XZTarg_30DegRot.png) |
*** |
0.8 |
0.2251 +/- 0.0012 |
|
0.4 |
0.2494 +/- 0.0023 |
![VxDiff R=0.4 XZTarg 30DegRot.png](/./images/thumb/c/ca/VxDiff_R%3D0.4_XZTarg_30DegRot.png/200px-VxDiff_R%3D0.4_XZTarg_30DegRot.png) |
*** |
0.9 |
0.222 +/- 0.001 |
|
0.5 |
0.2439 +/- 0.0019 |
![VxDiff R=0.5 XZTarg 30DegRot.png](/./images/thumb/c/c1/VxDiff_R%3D0.5_XZTarg_30DegRot.png/200px-VxDiff_R%3D0.5_XZTarg_30DegRot.png) |
*** |
1.0 |
0.2193 +/- 0.0010 |
|
Localized Vertex Resolution of 3 Dimensional targets
For the plots below, a 6 GeV electron was fired at angles 25 degrees in theta and 30 degrees in phi. The target has an XY radius of 1cm and a length in the Z direction of 6cm. Setting GenPart.z = 0cm, the resolution was investigated as a function of the target's XY radius along with a table for the values.
R (cm) |
0.1 |
0.2 |
0.3 |
0.4 |
0.4 |
0.5 |
0.6 |
0.7 |
0.8 |
0.9 |
1.0
|
Width (cm) |
0.6013 +/- 0.00187 |
0.073 +/- 0.001 |
0.09447 +/- 0.00123 |
0.1764 +/- 2.6134 |
0.1267 +/- 0.001 |
0.5226 +/- 5.8171 |
0.785 +/- 0.004 |
0.8713 +/- 0.0043 |
1.003 +/- 0.005 |
1.083 +/- 0.006
|
It would seem that when R = 0.4cm and R = 0.6cm that the error in the Gaussian fit in ROOT is quite far off.
For this section I created a target that is 2cm in X and Y, and 6cm in Z. To produce the histograms I made a cut in the radius of a cylinder (R=0.1cm, R=0.2cm, .... , R=1.0cm) and also cut Z (Z=1cm, Z=2cm,...,Z=6cm) so that for each fixed radius there will be 6 histograms corresponding to changes in Z. For example, assume I am using R=0.1cm. There will be 6 histograms for X,Y,and Z corresponding to changing Z from 1cm to 6cm in 1cm increments. I also placed a cut for the reconstructed events using the commands abs(Event.z) <= 4.0 and sqrt(Event.x*Event.x+Event.y*Event.y) <=1.
For the plots below, a 6 GeV electron was fired at angles 25 degrees in theta and 30 degrees in phi. The target has an XY radius of 1cm and a length in the Z direction of 6cm. Setting GenPart.z = 0cm, the resolution was investigated as a function of the target's XY radius along with a table for the values.
Below are the Vx Differences for R=1.0cm as an example.
Z (cm) |
Resolution (cm) |
Vx Difference |
*** |
Z (cm) |
Resolution (cm) |
Vx Difference
|
1.0 |
0.305 +/- 0.003 |
![VxDiff R=1.0 Z=1 30DegRot.png.png](/./images/thumb/2/26/VxDiff_R%3D1.0_Z%3D1_30DegRot.png.png/200px-VxDiff_R%3D1.0_Z%3D1_30DegRot.png.png) |
*** |
4.0 |
0.3459 +/- 0.0018 |
|
2.0 |
0.307 +/- 0.003 |
![VxDiff R=1.0 z=2 30DegRot.png](/./images/thumb/4/40/VxDiff_R%3D1.0_z%3D2_30DegRot.png/200px-VxDiff_R%3D1.0_z%3D2_30DegRot.png) |
*** |
5.0 |
0.3688 +/- 0.0016 |
|
3.0 |
0.3214 +/- 0.0021 |
![VxDiff R=1.0 Z=3 30DegRot.png](/./images/thumb/7/79/VxDiff_R%3D1.0_Z%3D3_30DegRot.png/200px-VxDiff_R%3D1.0_Z%3D3_30DegRot.png) |
*** |
6.0 |
0.3877 +/- 0.0015 |
|
Elastic electron proton GEMC 2.4 & Coatjava 2.4
References
https://clasweb.jlab.org/wiki/index.php/TF_EG12_Vertex#Z_resolution_With_micro-megas
EG12#Vertex_Studies