# Setup for Batch Job With Varying Experimental CLAS12 Quantities

Using CLAS12 isotropic distribution LUND files for LH2 and NH3 targets and varying incident electron energy.

mv LUND_Spread_LH2.LUND LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut.LUND

Spliting the LUND file into 38 parts of 1000 events, or 3000 lines

split -d -l 3000 -a 3 LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut.LUND LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut_


Naming these files LUND files

prename 's/(LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut_\d{3})/$1.LUND/' LH2_0Sol_n100Tor_11GeV_Phi0deg_ShieldOut_*  Placing each of these files into its own directory, within a directory named LH2_0Sol_p100Tor_11GeV_Phi0deg_ShieldOut find . -name "*.LUND" -exec sh -c 'mkdir "${1%.*}" ; mv "$1" "${1%.*}" ' _ {} \;

# GCard Building

A program,File:Gcard builder.C is written to install a LUND specific gcard in each directory.

# Commands Building

Similarly, File:Commands builder.C is written to install a specific commands file into each directory for testing.

# Batch Conditions

The batch job will need to

cd /home/lds/src/CLAS/GEMC/experiments/eg12/MolrBckGrd/DV/Isotropic_study/LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut
cd /LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_00
~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -INPUT_GEN_FILE="LUND,LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_00.LUND" -N=3000 eg12.gcard>/dev/null
-
-
-
cd /LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_37
~/src/CLAS/GEMC/source/gemc -USE_GUI=0 -INPUT_GEN_FILE="LUND,LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_37.LUND" -N=3000 eg12.gcard>/dev/null
cd ..
~/src/CLAS/evioRootDV/bin/evio2root LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut.root 114000


The weighting found in the LUND file is applied to the scattering angle theta in the Center of Mass frame to produce the Moller Differential Cross Section. We should be able to use the information from the detector hits such as wire numbers and sectors to find a distribution of hits with respect to the scattering angle theta in the Lab Frame. The Theta distribution will need to undergo a Lorentz transformation to the Center of Mass Frame to apply the corresponding weight found in the LUND file.

# Plotting detector grids

Using ~/src/CLAS/coatjava-2.4/bin/evio-dump -i LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_00/LH2_0Sol_n100Tor_11GeV_Phi10deg_ShieldOut_00.evio, we can test for the first particle hits. We show 9 hits, all on wire 1.

*********************** EVENT # 2  ***********************

+------------------------------------------------+------------+------------+
|                                            bank|       nrows|       ncols|
+------------------------------------------------+------------+------------+
|                                        DC::dgtz|           9|          11|
|                                        DC::true|           9|          24|
|                                   GenPart::true|           2|           7|
|                                      HTCC::dgtz|           2|           6|
|                                      PCAL::dgtz|           7|           7|
+------------------------------------------------+------------+------------+

Press Enter for Next Event or Bank Name: DC::dgtz
*****>>>>> BANK DC::dgtz  >>>> SIZE = 11
sector  (int)  :             1              1              1              1              1              1              1              1              1
superlayer  (int)  :             1              1              1              1              2              2              2              2              2
layer  (int)  :             1              2              3              4              1              2              3              4              6
wire  (int)  :             1              1              1              1              1              1              1              1              1
LR  (int)  :            -1             -1             -1             -1              1              1             -1             -1             -1



This is confirmed by the plot: