Using MCEEP

MCEEP Resources

• MCEEP hompage

• MCEEP documentation

Running MCEEP

• login to the farm

 ssh ifarm

• a simple command will take you to the MCEEP directory (/work/halla/e07006/disk1/Erez/MCEEP/mceep)

 $GoMCEEP

(envinrinmentals are set in ~/.cshrc)

• create a new directory for the run you want to take, and go inside it, e.g.

 mkdir v3_9
 cd v3_9

• copy a sample input file

 cp ../input/v3_9.inp .
 mv v3_9.inp My_v3_9.inp

(and edit in)

• a simple run command will run the simulation

 $RunMCEEP

• Answer the questions, as for example in Example of a MCEEP run. Start by entering an input file e.g.

 My_v3_9

• choose a procedure

 ELASTIC, BOUND STATE, CONTINUUM or ACCEPTANCE

• After MCEEP will finish running, multiple output files will appear in the output directory, the most important are a summary file and an NTuple file

 My_v3_9.sum
 My_v3_9.ntu

• Conversion to ROOT format is then achieved by going to the ROOT utilities and using the conversion program

 mv My_v3_9.ntu $mceep_home/utilities/root/
 cd $mceep_home/utilities/root/
 m2root My_v3_9.ntu

• The ROOT output file mceep.root will have a TTree called mceep with the variables set in the input file. To draw e.g. E(miss) use

 mceep -> Draw("EMISS")

comments

• If elastic scattering is chosen, MCEEP will prompt the user to select scattering from the p, d, 3H, 3He, 4He or 12.

• Also, for elastic scattering in general, the user has the option of enforcing the acceptance of the hadron arm or simulating single-arm elastic scattering where the hadron kinematics are ignored.

• If elastic scattering is chosen, MCEEP requests no further input.

• For the bound state or continuum options, MCEEP will prompt the user to choose from various models.

[back He3/H3 e,e'p experiment]

[back to Hall A wiki]