Revision as of 18:24, 16 June 2016

Vertex Reconstruction studies

Inclusive electron GEMC 2.4 & Coatjava 2.4

LB_GEMC2.4CJ2.4_Vertex

Summary

Var X(cm)	Var Y(cm)	Var Z(cm)	X resold(cm)	Y resolution (cm)	Z resolution (cm)

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

@@ Line 17: / Line 17: @@
 =Elastic electron proton GEMC 2.4 & Coatjava 2.4=
-=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.
 =References=

Difference between revisions of "LB RunGroupC Vertex"

Revision as of 18:24, 16 June 2016

Contents

Inclusive electron GEMC 2.4 & Coatjava 2.4

Summary

Elastic electron proton GEMC 2.4 & Coatjava 2.4

References

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