Particles are a key component when dealing with decays. Refer to the `Particle package`_ for how to deal with particles and PDG identification codes.


DecFiles describe decays. You can read files and query information about them.


The primary way to use decaylanguage.decay is through the module provided to read in a language file and produce an output. For example, for GooFit, call:

python -m decaylanguage.goofit models/DtoKpipipi_v2.txt

You can pipe the output to a file.

Examples of interaction with the API directly are provided in the /notebooks folder, including svg diagrams of lines.