iDM in MadGraph

[tomeichlersmith]

Necessities

• [x] enable e- N > e- N zp process, current model does p p > j zp
  • this involves figuring out how to define N and define how N interacts with e- and zp
• [x] #14

Wants

• [x] Nuclear properties, DM masses, etc are all run-time parameters (not compile-time)
  • I think that these parameters (except the nuclear ones) are all run-time at the moment, but I need a way to check
• [x] Converter to ~DataFrame~ awkward array for easier analysis
• [ ] Custom pre-compiled "gridpack" that takes DM masses, nuclear properties, and electron beam energy and produces events
  • current gridpacks only allow varying of the beam energy, but I don't know if that is a CLI issue or a deeper issue
• [x] speed up survey time by adding a restriction on the model so MG can eliminate parameters that we know don't matter
  • we are doing e-N interactions with written-in form factors so including quarks of varying masses adds nothing and only slows down the computation
• [x] put form factor constants calculated from A, Z as "internal" parameters so that they are calculated automatically
• [x] #15

[tomeichlersmith]

Plain DarkPhoton model may be of some use for point one: https://github.com/JeffersonLab/hps-mc/tree/master/generators/madgraph5/src/models/DarkphotonNuc_UFO_3

[tomeichlersmith]

While I was able to enable the dark brem off N process, I need to generate some samples and see if it makes sense.

[tomeichlersmith]

might need to add a restriction to the model to help speed up the survey time: https://answers.launchpad.net/mg5amcnlo/+faq/2312

[tomeichlersmith]

Able to add a restriction and start a awkward-based analysis of the LHE files, going to need to check the restricted model against the unrestricted to see if there are any kinematic/cross section differences.

[tomeichlersmith]

Instead of working on a custom "grid pack" - I'm just going to follow the seeming HPS norm of putting the MadEvent workspace for the process of interest into hps-mc.