View source for LB GEMC2.4CJ2.4 Vertex

=Reconstruction Efficiencies=
== Simulation commands==

===Solenoid Off===

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.1, 10)cm" -N=100 eg12_nosol_noLUND.gcard

~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_nosol_75k_noLUND.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=0.0 -o temp.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true

===Solenoid On===

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.1, 10)cm" -N=100 eg12_sol_noLUND.gcard

~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_nosol_75k_noLUND.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=1.0 -o temp.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true


==Sweet spot==

[[TS_RunGroupC#Sweet_spot]]
Below is the command line I used for GEMC

gemc -USE_GUI=0 -HALL_MATERIAL="Vacuum" , -N=75000 eg12_nosol1.gcard                 

Here is the gcard

<gcard>

       <detector name="../../../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/dc/dc"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ftof/ftof"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/pcal/pcal"            factory="TEXT" variation="javageom"/>
       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
      <option name="OUTPUT" value="evio,eg12_nosol_1.ev"/>
      <option name="BEAM_P" value="e-, 6.0*GeV, 25.0*deg, 0*deg"/>
      <option name="SPREAD_P" value="4.0*GeV, 0*deg, 0*deg"/>

</gcard>

Here is the reconstruction command

~/src/CLAS/coatjava-1.0/bin/clas12-reconstruction -s FMT:DCHB:DCTB:FTOF:EC:EB -config DCTB::useRaster=true -config MAG::solenoid=0 -i eg12_nosol_1.ev -o eg12_nosol_1_rec.ev


Below is the command and the gcard used for when the solenoid was on

 gemc -USE_GUI=0 -HALL_MATERIAL="Vacuum" , -N=100000 eg12_sol1.gcard
                                                                             
<gcard>

        <detector name="../../../../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/dc/dc"            factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/ec/ec"            factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/ftof/ftof"            factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
        <detector name="../../../../../clas12/pcal/pcal"            factory="TEXT" variation="javageom"/>
        <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
        <option name="HALL_FIELD"  value="clas12-solenoid"/>
        <option name="OUTPUT" value="evio,eg12_sol_1.ev"/>
        <option name="BEAM_P" value="e-, 6.0*GeV, 25.0*deg, 0*deg"/>
        <option name="SPREAD_P" value="4.0*GeV, 0*deg, 0*deg"/>

</gcard>

~/src/CLAS/coatjava-1.0/bin/clas12-reconstruction -s FMT:DCHB:DCTB:FTOF:EC:EB -config MAG::fields=nominal  -config DATA::mc=true -i eg12_sol_1.ev -o eg12_sol_1_rec.evio

Below are the reconstructed events with the solenoid on and off for 1k events

[[File:rec_theta_1k.png | 200 px]]

[[File:Rec_Theta_Sol_1k.png | 200 px]]


[[File:Rec_phi_nosol_1k.png | 200 px]]


[[File:Rec_phi_sol_1k.png | 200 px]]

==Raster in Z==
Since the LUND files are not currently operating correctly, I will use a different method to raster in Z. I will use the GEMC command line to reduce the radius of the target to 0 cm and randomly place vertex positions along Z (like a line target). The command line for GEMC is shown below along with the gcard when the solenoid is off:

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.0, 3)cm" -N=100 eg12_nosol_noLUND.gcard


<gcard>

       <detector name="../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../clas12/dc/dc"            factory="TEXT" variation="ccdb"/>
       <detector name="../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/ftof/ftof"            factory="TEXT" variation="java"/>
       <detector name="../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/pcal/pcal"            factory="TEXT" variation="javageom"/>
       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
      <option name="OUTPUT" value="evio,eg12_nosol_75k_noLUND.ev"/>
      <option name="BEAM_P" value="e-, 6.0*GeV, 25.0*deg, 0*deg"/>
      <option name="SPREAD_P" value="4.0*GeV, 0*deg, 0*deg"/>

</gcard>

and here is the reconstruction command line
~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_nosol_75k_noLUND.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=0.0 -o eg12_nosol_75k_noLUND_rec.ev -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true

Below are the differences between the generated and reconstructed angles for 75k events:

[[File:PhiDifference75kZraster.png|200px]]
[[File:ThetaDifference75kZraster.png | 200px]]

Below are the command lines and gcard used for GEMC and the reconstruction software when the solenoid is on

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.0, 3)cm" -N=75000 eg12_sol_noLUND.gcard


~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_sol_75k_noLUND_3cm_Zraster.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=1.0 -o eg12_sol_75k_noLUND_3cm_Zraster_rec.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true


<gcard>

       <detector name="../../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../../clas12/dc/dc"            factory="TEXT" variation="ccdb"/>
       <detector name="../../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../../clas12/ftof/ftof"            factory="TEXT" variation="java"/>
       <detector name="../../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
       <detector name="../../../clas12/pcal/pcal"            factory="TEXT" variation="javageom"/>
       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
       <option name="HALL_FIELD"  value="clas12-solenoid"/>
       <option name="OUTPUT" value="evio,eg12_sol_75k_noLUND_3cm_Zraster.ev"/>
       <option name="BEAM_P" value="e-, 6.0*GeV, 25.0*deg, 0*deg"/>
       <option name="SPREAD_P" value="4.0*GeV, 0*deg, 0*deg"/>

</gcard>


Below are the plots for the differences between the generated and the reconstructed values for theta and phi with the solenoid on for 75k events:


[[File:ThetaDifferenceZRasterSol.png | 200px]]
[[File:PhiDifferenceZrasterSol.png | 200px]]

==Raster in X ==

I simulated 75000 events in GEMC 2.4 and used an evio to root program to convert the reconstructed data to a root file. In the input LUND file for GEMC, I set the x vertex to raster by +/- 1cm. Vy and Vz were set to be generated at 0. Below is a plot of the generated x vertices in centimeters:

[[File:1cm XRaster GenPartX sol.png |200px]]


The reconstructed events were put on a log scale to show that there were some large outlying values, but those were removed when the difference was taken. The plot below also has its x reconstructed vertices in centimeters.

[[File:1cm XRaster EventX 75k sol.png|200px]]

Finally the difference was take between these two values restricting that the reconstructed vertices are +/- 2cm.


[[File:1cm XRaster VxDifference sol 75k.png|200px]]
 
The RMS, which gives the resolution can be seen to be 0.3427cm.

==Raster in Y ==

== Raster in X & Y Zis zero ==

Below is the command line used for rastering in X and Y while leaving the z-component of the vertex at 0 with the solenoid off:

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.5, 0)cm" -N=75000 eg12_nosol_noLUND.gcard

and here is the reconstruction command line

~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_nosol_75k_noLUND_xyraster.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=0.0 -o eg12_nosol_75k_noLUND_xyraster_rec.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true

Below are the differences between the reconstructed and the generated angles for rastering 1cm in XY:

[[File:ThetaDifferenceXYRaster.png | 200px]]
[[File:PhiDifferenceXYRaster.png | 200px]]

Below are the command lines and the gcard used for when the solenoid was on:

~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -SPREAD_V="(0.5, 0)cm" -N=75000 eg12_sol_noLUND.gcard

~/src/CLAS/coatjava-2.4/bin/clas12-reconstruction -i eg12_sol_75k_noLUND_1cm_XYraster.ev -config GEOM::new=true -config MAG::torus=-1.0 -config MAG::solenoid=1.0 -o eg12_sol_75k_noLUND_1cm_XYraster_rec.evio -s DCHB:DCTB:EC:FTOF:EB -config DATA::mc=true


<gcard>

       <detector name="../../../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/dc/dc"            factory="TEXT" variation="ccdb"/>
       <detector name="../../../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ftof/ftof"            factory="TEXT" variation="java"/>
       <detector name="../../../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/pcal/pcal"            factory="TEXT" variation="javageom"/>
       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
       <option name="HALL_FIELD"  value="clas12-solenoid"/>
       <option name="OUTPUT" value="evio,eg12_sol_75k_noLUND_1cm_XYraster.ev"/>
       <option name="BEAM_P" value="e-, 6.0*GeV, 25.0*deg, 0*deg"/>
       <option name="SPREAD_P" value="4.0*GeV, 0*deg, 0*deg"/>

</gcard>




Here are the plots for the differences in the generated and reconstructed values for theta and phi with the solenoid on:

[[File:ThetaDifferenceXYrasterSol.png | 200px]]
[[File:PhiDifferenceXYrasterSol.png | 200px]]

== Raster in XYZ ==
For this simulation I rastered the beam in the XY plane around 1cm, and z was rastered +/- 3cm. Below are the differences in the the generated and reconstructed angles for when the solenoid was off:

[[File:ThetaDifferenceXYZRasterNoSol.png | 200px]]
[[File:PhiDifferenceXYZRasterNoSol.png | 200px]]




and here are the plots for when the solenoid was on:


[[File:ThetaDifferenceXYZSol.png | 200px]]
[[File:PhiDifferenceXYZRasterSol.png | 200px]]


=Electron Vertex reconstruction=

I have created histograms of the z-vertex resolutions for both the proton and the electron using elastic events from the origin. I used the gemc command line to output a file called eg12_lb_NoSol.ev

gemc -USE_GUI=0 -INPUT_GEN_FILE="LUND, ElasticEvents_FromOrigin.LUND" -N=75000 eg12.gcard


My gcard looks like this

       <detector name="../../../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/dc/dc"            factory="TEXT" variation="original"/>      
       <detector name="../../../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/ftof/ftof"            factory="TEXT" variation="original"/>
       <detector name="../../../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
        <detector name="../../../clas12/pcal/pcal"            factory="TEXT" variation="original"/>
       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
      <option name="OUTPUT" value="evio,eg12_lb_NoSol.ev"/>

then I ran the reconstruction program using

~/src/CLAS/coatjava/bin/clas12-reconstruction -s FMT:DCHB:DCTB:FTOF:EC:EB -config DCTB::useRaster=true -config MAG::solenoid=0 -i eg12_lb_NoSol.ev -o eg12_lb_NoSol_rec.ev

After that I used the eg12_lb_NoSol_rec.ev to create the histograms

Here are the histograms when the solenoid is off

[[File:Z_Vertex_NoSol.png|thumb|center|upright=5.0]]

Then I ran the GEMC simulation with the solenoid on. My gcard was

<gcard>

       <detector name="../../clas12/fc/forwardCarriage" factory="TEXT" variation="original"/>
       <detector name="../../clas12/dc/dc"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/ec/ec"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/ctof/ctof"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/ftof/ftof"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/htcc/htcc"            factory="TEXT" variation="original"/>
       <detector name="../../clas12/pcal/pcal"            factory="TEXT" variation="original"/>

       <!--detector name="../../clas12/micromegas/micromegas"  factory="TEXT" variation="original"/-->


       <option name="SCALE_FIELD" value="clas12-torus-big, -1"/>
       <option name="HALL_FIELD"  value="clas12-solenoid"/>
      <option name="OUTPUT" value="evio, eg12_lb_Sol.ev"/>


</gcard>


Which gives the output file eg12_lb_Sol.ev. I used the GEMC command line

gemc -USE_GUI=0 -INPUT_GEN_FILE="LUND, ElasticEvents_FromOrigin.LUND" -N=75000 eg12_Sol.gcard

Then I made the reconstructed file, eg12_lb_Sol_rec.ev using the command line

~/src/CLAS/coatjava//bin/clas12-reconstruction -s FMT:DCHB:DCTB:FTOF:EC:EB -config MAG::fields=nominal -i eg12_Sol.ev -o eg12_lb_Sol_rec.ev

The histogram is below

[[File:Z_Vertex_Sol.png|thumb|center|upright=5.0]]


Now I will get more simulated events and use the java geometry for the pcal and the LUND file Vertex0.075k_10-40.dat and investigate the Z vertex resolution using different radius cuts.



[[LB_RunGroupC_Vertex#GEMC_2.4_.26_Coatjava_2.4]]