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# What is PineAPPL?

This repository contains tools, libraries and interfaces to read and write
`PineAPPL` interpolation grids, which store theoretical predictions for
[high-energy collisions] independently from their [PDFs].

[high-energy collisions]: https://en.wikipedia.org/wiki/Particle_physics
[PDFs]: https://en.wikipedia.org/wiki/Parton_(particle_physics)#Parton_distribution_functions

# Quick links

- [Documentation](docs/README.md)
- [Installation instructions](docs/installation.md)
- [Changelog](CHANGELOG.md)

# Citation

If you use PineAPPL, please cite

1. the software itself using its [zenodo DOI] and
2. the [paper] introducing it.

[zenodo DOI]: https://zenodo.org/badge/latestdoi/248306479
[paper]: https://inspirehep.net/literature/1814432

# Similar projects

`PineAPPL` isn't the only or even first interpolation library. There are at
least:

- [APPLgrid](https://applgrid.hepforge.org/) and
- [fastNLO](https://fastnlo.hepforge.org/).