Matchmakereft: automated tree-level and one-loop matching

Understand

We introduce matchmakereft, a fully automated tool to compute the tree-level and one-loop matching of arbitrary models onto arbitrary effective theories.

• Matchmakereft performs an off-shell matching, using diagrammatic methods and the background field method when gauge theories are involved.
• The large redundancy inherent to the off-shell matching together with explicit gauge invariance offers a significant number of non-trivial checks of the results provided.
• These results are given in the physical basis but several intermediate results, including the matching in the Green basis before and after canonical normalization, are given for flexibility and the possibility of further cross-checks.