GiBUUTools

GiBUUToStdHep is a tool for converting the default GiBUU, text-based neutrino-mode event output into a format that is more commonly used in the neutrino generator community. It aims to preserve as much of the useful information provided by the generator for subsequent analysis.

GiBUUFluxTools is a tool for converting neutrino flux histograms from bin-edge text histograms or root files containing a TH1 to a bin-center text histogram that GiBUU can use to throw neutrino events.

Building GiBUUTools

To build GiBUUTools:

• Make a build directory: mkdir build

• Configure the build: cd build && cmake ../

• Optional -- If you want to download, patch, and build a local version of GiBUU2017 use cmake /path/to/source -DUSE_GIBUU=1 instead.

• Build! make.

• Optional: Build the documentation -- make docs.

  • This release should come with pre-compiled documentation at dox/GiBUUTools.pdf

• Install: make install.

• N.B. Your compiler must have c++11 support. If you are trying to build with a non-system compiler, you must run cmake with -DCMAKE_CXX_COMPILER=$(which g++) -DCMAKE_C_COMPILER=$(which gcc) options manually specified, or cmake will use the system compiler.

To set up a built GiBUUTools:

• source build/Linux/setup.sh
  • Linux will change depending on your CMAKE_SYSTEM_NAME

This will add GiBUUTools and GiBUU (if built) to the PATH.

IMPORTANT

Whenever you plot properties of GiBUU events, you must weight the events by the 'event weight' (EvtWght in the stdhep tree). GiBUU throws events according to the neutrino flux shape, if you do not weight by the xsec, then your distributions will be just wrong.