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.
In this section, concentric rings with a thickness of 0.1cm were created within the target. For example these plots would include a ring centered at x=y=z=0 and include all GenPart.x and GenPart.y from (0.0 cm, 0.1 cm), then another ring would include all Genpart.x and GenPart.y events from (0.1 cm, 0.2 cm) and so on until we reach the edge of the target.
clas12->Draw("Event.z >> (100,-5,5)","sqrt(GenPart.x*GenPart.x+GenPart.y*GenPart.y)<0.95 && sqrt(GenPart.x*GenPart.x+GenPart.y*GenPart.y)>0.85");
R (cm) |
0.05 +/- 0.05 |
0.15 +/- 0.05 |
0.25 +/- 0.05 |
0.35 +/- 0.05 |
0.45 +/- 0.05 |
0.55 +/- 0.05 |
0.65 +/- 0.05 |
0.75 +/- 0.05 |
0.85 +/- 0.05 |
0.95 +/- 0.05
|
Width (cm) |
0.05094 +/- 0.0019 |
0.07812 +/- 0.0018 |
0.3688 +/- 0.0063 |
0.5231 +/- 0.0077 |
0.718 +/- 0.012 |
0.7987 +/- 0.0092 |
0.8709 +/- 0.0085 |
1.038 +/- 0.01 |
1.183 +/- 0.012 |
1.296 +/- 0.013
|
For the next set of plots, the GEMC simulations had the same energy and angles as above. To construct scatter plots, similar annular cuts in the radius were made (similar to above), but this time the thickness of each ring was 0.2 cm (to ensure enough events were present). In addition, the target will become extended in Z. Cuts were made in Z by restricting GenPart.z to be within a range of certain values. Each "washer" shape has a thickness of 0.5 cm in the Z direction. Histograms were created using the following command line as an example
clas12->Draw("GenPart.z - Event.z >> (100,-5,5)","sqrt(GenPart.x*GenPart.x+GenPart.y*GenPart.y)<0.2 && sqrt(GenPart.x*GenPart.x+GenPart.y*GenPart.y)>0.0 && GenPart.z > 0.0 && GenPart.z < 0.5");
Below is a plot and a table for the Width of the gaussian peak of GenPart.z - Event.z when 0.5 cm < GenPart.z < 1.0 cm. For the plot each Radius is centered at the point plotted with a width of +/- 0.1 cm.
R (cm) |
0.1 |
0.3 |
0.5 |
0.7 |
0.9
|
Width (cm) |
0.1672 +/- 0.0109 |
0.1636 +/- 0.0064 |
0.2277 +/- 0.0075 |
0.3203 +/- 0.0107 |
0.3287 +/- 0.0082
|
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