A Pythia8 Tune for Open Charm and Beauty Production in Fixed-Target Collisions
This paper introduces FTFT, a new set of Pythia8 parameters optimized for simulating open charm and beauty production in fixed-target collisions at GeV by fitting differential distributions to experimental data and applying beam-specific K-factors to improve predictions for neutrino fluxes and hidden-particle yields in beam-dump experiments like SHiP.