View source for SoLID full simulation and file sharing

= Introduction =

We will run full simulation with all subsystems and generate various files at a shared central location

They can used for studies like acceptance,trigger, background, GEM etc and ensure consistent results

Many file size are large in order of 10-100GB, you can transfer them by using "scp jlabname@ftp.jlab.org:file" or globus here https://cc.jlab.org/filetransfers which is about twice faster

= luminosity and radiation thickness =

Z,A, and effective nuclei luminosity calculated here are used as input by eDIS generator at
https://github.com/JeffersonLab/evgen_inclusive/output

PVDIS 
 50uA, raster 0.5cm diameter
 LH target, 40cm, 0.071g/cm3, X=40/890.4=4.5e-2, Lumi=50e-6/1.6e-19*40*0.071*6.02e23=0.53e39/cm2/s 
 LD target, 40cm, 0.169g/cm3, X=40/745.4=5.4e-2, Lumi=50e-6/1.6e-19*40*0.169*6.02e23=1.27e39/cm2/s
 Al window, 2*100um, density 2.7g/cm3, X=2*100e-4/8.897=2.25e-3, Lumi=50e-6/1.6e-19*2*100e-4*2.7*6.02e23=1e37/cm2/s

SIDIS He3
 15uA, raster 0.5cm diameter
 3he(10amg), 40cm, density=10*44.6(amg=mol/m3)*3.016(g/mol)=1.345e-3g/cm3, X=40/(67.42/1.345e-3)=0.8e-3, Lumi=15e-6/1.6e-19*40*1.345e-3*6.02e23=3e36/cm2/s, pol Lumi = 3e36/3 = 1e36cm2/s
 GE180 glass window, 2*120um, density 2.76g/cm3, X=2*120e-4/(19.4/2.76)=3.4e-3, Lumi=15e-6/1.6e-19*2*120e-4*2.76*6.02e23=3.74e36/cm2/s

 GE180 Aluminosilicate Glass Composition, 
   refer to http://galileo.phys.virginia.edu/research/groups/spinphysics/glass_properties.html
   Molecule 	Composition by weight
      SiO2	 	60.3%
      BaO 	 	18.2%
      Al2O3		14.3%
      CaO 	 	6.5%
      SrO 	 	0.25% 
   Z/A 	                   0.4829 
   radiation thickness 	   19.4246 g/cm2
   radiation thickness 	   7.038 cm
   density                 2.76 g/cm3
   assume Z=17 and A=35,which gives correct Z/A, then we got nuclei luminosity for each window 3.74/2/35=0.054e36/cm2/s

SIDIS proton
 
 I = 100nA, raster 2.4cm diameter
 Target = NH3, density of NH3(den) = 0.819 g/cm^3
 target thickness (t) = 2.826 cm, packing fraction(PF) = 0.55
 NH3 target is immersed in liquid He4, density of LHe4 = 0.145 g/cm^3 at 1K
 Luminosity of NH3 = den * t * PF * (I/1.602e-19)*6.022e23 = 0.819*2.826*0.55*(100e-9/1.602e-19)*6.022e23 = 4.785e35/cm2/s
 pol Lumi = 4.785e35/17*3 = 0.844e35/cm2/s
 Luminosity of LHe4 = den * t * (1-PF) * (I/1.602e-19)*6.022e^23 = 0.145*2.826*0.45*(100e-9/1.602e-19)*6.022e23 = 0.69e35/cm2/s
 Luminosity of two LHe4 outside   =  0.145*2*0.432*(100e-9/1.602e-19)*6.022e23 = 0.47e35/cm2/s
 Total luminosity = (4.785+0.69+0.47) * 1e35 = 5.945e35/cm2/s

 total length of NH3+LHe4 and two LHe4 outside, 2.826+2*0.432=3.69
 average density of NH3+LHe4, (0.819*0.55+0.145*0.45) = 0.5157
 average density of NH3+LHe4 and two LHe4 outside, (0.5157*2.826+0.145*2*0.432)/(2.826+2*0.432)=0.43
 Composition by weight of NH3+LHe4 and two LHe4 outside
    NH3                   0.819*0.55*2.826/(2.826+2*0.432)/0.43=0.80
    LHe4                  0.145*0.45*2.826/(2.826+2*0.432)/0.43=0.12
    two LHe4 outside      0.145*2*0.432/(2.826+2*0.432)/0.43=0.08
 average Z=10*0.80+2*0.12+2*0.08=8.4
 average A=17*0.80+4*0.12+4*0.08=14.4
 Z/A=0.583
 assume Z=7 and A=12,which gives correct Z/A, then we got nuclei luminosity 5.945e35/12=0.495e35/cm2/s

 reference: 
 g2p thesis and target info https://hallaweb.jlab.org/wiki/index.php/G2p
 g2p target in simulation https://github.com/asymmetry/g2psim/blob/master/src/G2PTarget.cc
 5% error of dilution factor https://userweb.jlab.org/~jones/tajima_rss/plots/2007/sep25/dfpf_oscar_report.pdf

 Note: there are several thin Al windows before and after target, their total luminosity ~1e35/cm2/s  

JPsi
 3uA, raster 0.5cm diameter
 LH target, 15cm, 0.071g/cm3, X=15/890.4=1.7e-2, Lumi=3e-6/1.6e-19*15*0.071*6.02e23=1.2e37/cm2/s
 Al window, 2*100um, density 2.7g/cm3, X=2*100e-4/8.897=2.25e-3, Lumi=3e-6/1.6e-19*2*100e-4*2.7*6.02e23=6e35/cm2/s

= file sharing (current) =

* geant4 crosssection study
 /mss/halla/solid/sim/solid_gemc/target_JLAB_VERSION_1.3
 /cache/halla/solid/sim/solid_gemc/target_JLAB_VERSION_1.3
 *BeamOnTargethadron*.root  (hadron only)
 *BeamOnTargetEM/*.root    (EM only)
 *BeamOnTarget/*.root      (EM+hadron)

* SoLID full simulation sharing location
 latest as of 2020/07
   /cache/halla/solid/sim/solid_gemc/PVDIS_LD2_JLAB_VERSION_1.3/pass4
   /cache/halla/solid/sim/solid_gemc/SIDIS_He3_JLAB_VERSION_1.3/pass7
   /cache/halla/solid/sim/solid_gemc/SIDIS_NH3_JLAB_VERSION_1.3/pass6
   /cache/halla/solid/sim/solid_gemc/JPsi_LH2_JLAB_VERSION_1.3/pass5
 location on disk /cache/halla/solid/sim/solid_gemc/ (The latest files are pinned on cache for max allowed 60 days. If you need older files, ask Zhiwen Zhao)
 location on tape /mss/halla/solid/sim/solid_gemc/
 dir
   PVDIS_LD2_JLAB_VERSION_1.3
   SIDIS_He3_JLAB_VERSION_1.3
   SIDIS_NH3_JLAB_VERSION_1.3
   JPsi_LH2_JLAB_VERSION_1.3   
   ...
 subdir
   pass1
   pass2
   pass3
   pass4
   ...
 detailed log are at
   new and updated
   [https://github.com/JeffersonLab/solid_gemc/blob/master/analysis/log_PVDIS_LD2 log_PVDIS_LD2]
   [https://github.com/JeffersonLab/solid_gemc/blob/master/analysis/log_SIDIS_He3 log_SIDIS_He3]
   [https://github.com/JeffersonLab/solid_gemc/blob/master/analysis/log_SIDIS_NH3 log_SIDIS_NH3]
   [https://github.com/JeffersonLab/solid_gemc/blob/master/analysis/log_JPsi_LH2 log_JPsi_LH2] 

* file name example
 "*BeamOnTarget_1e9_skim.root", created by shooting 1e9 electron on target, full SoLID simulation, only events has any entry in any detector is kept, physics list used is "QGSP_BERT_HP+STD+Optical", including hadron,EM and optical process
 "*BeamOnTargetEM_1e9_skim.root", created by shooting 1e9 electron on target directly, only events has any entry in any detector is kept, physics list used is "STD+Optical",meaning no hardon, only EM and optical process
 "*dirty_weighted_eDIS_filenum100_1e6.root,  *dirty_normalized_*_pi*HallD_filenum500_5e6.root,  *dirty_normalized_*_allnoeHallD_filenum500_5e6.root"
 dirty means full SoLID simulation with physics list "QGSP_BERT_HP+STD+Optical"
 weighted means the generator events distribute evenly in certain kinematic space,then have weight linked to crossection and rate
 normalized means the generator events distribute according to crossection by probability and weight is a constant for each event
 eDIS means electron from target by the DIS electron generator mode in "eicRate" code
 pion*HallD means pion from target by the modified hallD generator
 allnoeHallD means all particles from the modified hallD generator which has no electron
 5e6 are number of event
 filenum500 means sum of 500 small files of 1e4=5e6/500 events each

* note about normalization factor
 for BeamOnTarget skim file, (current in A)/1.6e-19/(number of event) = rate in Hz, for PVDIS_current=50uA,SIDIS_He3=15uA,SIDIS_NH3=100nA,JPsi=3uA, number of event is in file name, which is not number of tree entries in skim root file
 for other file, (var8->at(0) in tree header)/filenum = rate in Hz, filenum is included in file name, this is because each small file is normalized separately
 see example here https://jlabsvn.jlab.org/svnroot/solid/study/background/background.C and https://jlabsvn.jlab.org/svnroot/solid/study/trigger/Get_PVDIS_LD2_trigger_rate.C

= file sharing (old runs) =

== run 2  ==
It was done by Zhiwen Zhao in later 2014

The code and log files are in SVN at 
https://jlabsvn.jlab.org/svnroot/solid/study/background

location on disk /cache/halla/solid/sim/solid_gemc/ 

location on tape /mss/halla/solid/sim/solid_gemc/

(ask Zhiwen Zhao if you need to use them)

table for normalization factor comparison 
[http://hallaweb.jlab.org/12GeV/SoLID/download/sim/talk/normalization_factor_comparison.pdf pdf] [http://hallaweb.jlab.org/12GeV/SoLID/download/sim/talk/normalization_factor_comparison.pdf pptx]

 file names:
 "EM" in file name means all real materials and beam on target which needs normalization by current/nevent (same as "EM" previously)
 "clean_weighted" in file name means kryptonite for all geometry and weighted generator (same as "other" previously)
 "dirty_normalized" in file name mean all real materials and normalized generator (same as "actual" previously)

more hit_id are added, some are changed
  =========    hit_id and pid definition ==============
  hitid  =0 - 5 6 GEM planes, unused
          29 - 40  6 GEM plane, 1st layer (odd) and 2nd layer (even) of gas		
          20 - 25  6 GEM plane front			
          6,18    LGCC  PMT, front
          7,19    HGCC  PMT,  front
          8 - 11  FAEC front,middle,inner,rear 
          12 -15  LAEC front,middle,inner,rear 
          16,17,26 MRPC front,gas,glass
          27-28 FASPD front, inner
          41-42 LASPD front, inner
    pid =0   photon+electron+positron
         1   photon    
         2   electron + positron
         3   neutron
         4   proton
         5   pip
         6   pim
         7   Kp
         8   Km
         9   Kl
        10   other

== run 1 == 
It was done by Zhiwen Zhao in later 2013

main report for PVDIS_LD2 [http://hallaweb.jlab.org/12GeV/SoLID/download/baffle/talk/solid_baffle_zwzhao_20130910.pptx pptx][http://hallaweb.jlab.org/12GeV/SoLID/download/baffle/talk/solid_baffle_zwzhao_20130910.pdf pdf] and SIDIS_He3 [http://hallaweb.jlab.org/12GeV/SoLID/download/sim/talk/solid_SIDIS_background_zwzhao_20131118.pptx pptx] [http://hallaweb.jlab.org/12GeV/SoLID/download/sim/talk/solid_SIDIS_background_zwzhao_20131118.pdf pdf]

The code are in SVN at 
https://jlabsvn.jlab.org/svnroot/solid/solid_gemc/analysistool/background
see log files there for details

EM background is estimated from shooting beam into target with SoLID GEMC

background from eDIS, eES and hadron are using event generator at vertex as input into SoLID GEMC

low energy neutron cross section was turned on

 (ask Zhiwen Zhao if you need to use them) 
 file location
 on disk  /cache/halla/solid/sim/solid_gemc/
 on tape  /mss/halla/solid/sim/solid_gemc/
 for SIDIS_He3, it's at subdir SIDIS_He3_run1/
 for PVDIS_LD2, it's at subdir PVDIS_LD2_run1/, main result is dir baffle_babarbafflemore1_block which has photon block before EC, while baffle_babarbafflemore1 has result without the photon block

 file names for SIDIS_He3
 file with no special name is just shooting beam on target, "EM" particles dominating the results 
 "other" in file name means kryptonite for all geometry 
 "actual" in file name mean all real materials
 "sum"  in file name mean sum over all real materials for gas and two windows

 file names for PVDIS_LD2
 file with no special name is just shooting beam on target, "EM" particles dominating the results, it has lead baffle and kryptonite for everything else
 "other" in file name means kryptonite for all geometry 
 "real" in file name mean lead baffle and kryptonite for everything else

 for different detector and for different particles, we have histograms showing rate
 "Eklog_R_hitid_pid" rate(kHz/mm2) at R(cm) and log10(Ek)(GeV) with bin(300, 0, 300, 200,-6,1.3)
 "Eklog_R_high_hitid_pid" rate(kHz/mm2) at R(cm) and log10(Ek)(GeV) with bin(300, 0, 300, 200,-6,1.3) for Phi (0,6)deg
 "Eklog_R_low_hitid_pid" rate(kHz/mm2) at R(cm) and log10(Ek)(GeV) with bin(300, 0, 300, 200,-6,1.3) for Phi (6,12)deg
 "Eklog_R_Phi_hitid_pid" rate(kHz) at Phi(deg), R(cm) and log10(Ek)(GeV) with bin(48,0,12,300, 0, 300, 200,-6,1.3)
 "P_R_hitid_pid" rate(kHz/mm2) at R(cm) and P(GeV) with bin(300, 0, 300, 1100,0,11)
 there are many other histograms produced with similar names

 Because all histograms are produced the same way. One can simply add root files together by "hadd" to look at the result in sum

  hitid =0 - 5  GEM plane 1 - 6
         6       LGCC  PMT
         18      LGCC  front
         7       HGCC  PMT         
         19      HGCC  front
         8 - 11  FAEC front,middle,inner,rear 
         12 -15  LAEC front,middle,inner,rear 
         16,17,26 MRPC front,glass,gas
         20 - 25  GEM plane 1 - 6 front
         27 - 28  SPD front,scintillator
   pid =0   photon+electron+positron
        1   photon    
        2   electron + positron
        3   neutron
        4   proton
        5   pip
        6   pim
        7   Kp
        8   Km
        9   Kl
       10   other