Monte Carlo Processing: An Overview

For Monte Carlo events MCMAIN is the top level control routine. It is called once per event by EVMAIN. As mentioned above, it first stores the current seed in RSEED.DAT. It then calls MCG_GENERATOR to create the event and MCEVLV to evolve all tracks and vertices until all tracks end in sink vertices. MCDAQ then looks at the resulting PMT hits, divides them into detector triggers, calls MCNOIS to add PMT noise hits, and then simulates the DAQ electronics. The resulting banks imitate the banks which will be read in from tape for real events. From this point events look the same for Monte Carlo or for analysis of real data, so program control reverts to EVMAIN.