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add CRMC generator

Michael Pittrequested to merge
mpitt/genproductions_scripts:master into master

This PR adds gridpack generator for CosmicRayMonteCarlo (CRMC) capable of generating hadron collisions using four different event generators: EPOS LHC-R, Sibyll_2.3e, DPMJet-III_2019.1, QGSJETIII

The current version is using crmc-v2.2.1, which has been available since 29-Apr 2025 and suited for pO/OO collisions at the LHC.

NOTE:

  • Sibyll and QGSJET are asymmetric generators (pO will be different from Op) as they designed for air showers and don't treat target remnants which as momentum 0 in lab frame.
  • Sibyll is limited to pA with A<19
  • QGSJET were never designed for HI collisions (no final state interactions)

Usage:

./gridpack_generation.sh GEN_COL el8_amd64_gcc12 CMSSW_15_0_0_pre2

where GEN=[eposlhcr, sibyll, dpmjetIII.19, qgsjetIII] is the generator type COL=[pO, Op, OO, NeNe] is the collisions type

The beam energy is hardcoded: pO collisions E_beam = 6.8 ZTeV OO/NeNe collisions E_beam = 5.36 ZTeV

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