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This page aims to outline how to use NEUT to create a sample of interactions on your favourite target. We'll also outline how to feed this generated sample through the NUISANCE framework and get good results.
Compiling NEUT and running neutsmpl
The main neutrino-nucleus interaction generator lives in src/neutsmpl/neutroot. NEUT has two dependecies: ROOT and the lesser known CERNLIB. You need to have $ROOTSYS, $CERN and $CERN_LEVEL environment variables set-up to compile NEUT. Compilation is done (somewhat inconveniently) by running ./Makeneutsmpl in src/neutsmpl/. This calls a host of makefiles, sets up symlinks and so on. If you want to fix this and have the time, please contact us or Hayato-san.
Running the main executable is done by ./neutroot CARD_FILE.card OUTPUT_ROOT_FILE.root, where CARD_FILE.card is a card file compliant with your chosen NEUT version, and OUTPUT_ROOT_FILE.root is the output file where the events are to be saved.
Hot tip: NEUT can be quite verbose and you might want to pipe the output to file (or /dev/null...) rather than dump it to screen. This can actually speed up NEUT considerably.
