• Generate events with an electron particle gun in |eta| < 0.84:

o2-sim -m PIPE MAG TRD -n 1000 -g boxgen --configKeyValues 'BoxGun.pdg=11;BoxGun.eta[0]=-0.84;BoxGun.eta[1]=0.84'

• Generate events with an electron particle gun with 0.5 < p < 2.5 GeV and |eta| < 0.84:

o2-sim -m PIPE MAG TRD -n 1000 -g boxgen --configKeyValues 'BoxGun.pdg=11;BoxGun.eta[0]=-0.84;BoxGun.eta[1]=0.84;BoxGun.prange[0]=0.5;BoxGun.prange[1]=2.5'

• Generate events with a pion particle gun in |eta| < 0.84:

o2-sim -m PIPE MAG TRD -n 1000 -g boxgen --configKeyValues 'BoxGun.pdg=11;BoxGun.eta[0]=-0.84;BoxGun.eta[1]=0.84'

• Generate events with a pion particle gun with p = 2 GeV and |eta| < 0.84:

o2-sim -m PIPE MAG TRD -n 1000 -g boxgen --configKeyValues 'BoxGun.pdg=211;BoxGun.eta[0]=-0.84;BoxGun.eta[1]=0.84;BoxGun.prange[0]=2;BoxGun.prange[1]=2'

--configKeyValues 'TRDSimParams.doTR=false;TRDSimParams.maxMCStepSize=0.1'

o2-trd-trap2raw

This will convert the tracklets and digits in the current directory to a series of files containing the raw data as it would appear coming out of the cru. There are multiple options :

• -d [ --input-file-digits ] default of trddigits.root
  input Trapsim digits file, empty string to have no digits.
• -t [ --input-file-tracklets ] default of trdtracklets.root input Trapsim tracklets file
• -l [ --fileper ] how to distrbute the data into raw files.
  • all : 1 raw file
  • halfcru : 1 file per cru end point, so 2 files per cru.
  • cru : one file per cru
  • sm: one file per supermodule
• -o [ --output-dir ] output directory for raw data defaults to local directory
• -x [ --trackletHCHeader ] include tracklet half chamber header (for run3, and not in run2)
• -e [ --no-empty-hbf ] do not create empty HBF pages (except for HBF starting TF)
• -r [ --rdh-version ] rdh version in use default of 6
• --configKeyValues arg comma-separated configKeyValues

default would then be the following :

o2-trd-trap2raw -d trddigits.root -t trdtracklets.root -l halfcru -o ./ -x -r 6 -e