One-Loop Calculations in Effective Field Theories with GoSam-3.0

We thank the referee for the careful reading of the manuscript and the constructive comments. We addressed the comments in the following way:

The referee writes:

The authors should clarify whether full electroweak one-loop corrections are supported for general models, and if not, what the limitations are.

Our answer We have added the following sentence in the introduction: ``For electroweak corrections, the loop amplitudes can be generated, however the renormalisation is not automated in GoSam-3.0, this is work in progress.''

The referee writes:

Whether the pole test in the rescue system is applied also to QED poles, since only QCD correction are named, and if not, the rationale.

Our answer While the QED IR operator is present in the code, the pole test is disabled for QED poles. This is in line with the fact that the pole test compares IR poles, which can only match after the amplitude has been renormalised. The rescue system for electroweak corrections will be added in version-3.1 together with the electroweak renormalisation. We have added a comment about this at the end of section 3.2.

The referee writes:

The treatment of gamma_5, which is particularly delicate for electroweak corrections in the SMEFT, due to the structure of the EFT vertices. I would appreciate a more detailed explanation of the scheme used and its implementation. Our answer We added the following paragraph at the end of section 3.3.1:

``To ensure a consistent treatment of axial and pseudo-scalar currents, the calculation should be performed in DRED. GoSam will then automatically split Dirac-matrices into their four- and epsilon-dimensional parts as described in Ref.~[11]. The option \texttt{convert\_to\_thv} allows one to translate the results into the 't~Hooft--Veltman~(tHV) scheme. A direct calculation in the tHV scheme is currently only supported for calculations in the SM using the model files provided by \gosam, where the additional finite renormalisation related to gamma_5 is included automatically~[11].''

We also modified the text below equation (37) and in section 4.7 to clarify the possible scheme choices.

The referee writes:

Finally, I noticed two minor writing mistakes: \ 1. In the introduction, there is a sentence without a verb: ``Additional functionalities, for example enhanced support for multi-leg processes or flexibility concerning the interface to NLO-capable Monte Carlo event generators such as […].''

Our answer We have added ``are available in GoSam''.

The referee writes:

1. On page 4, in the sentence ``If no prefix is given meson will try to install the libraries in /usr/local,'' the word meson was written with a different font than the rest of the code-style references.

Our answer We have now written it coherently as {\sc Meson} whenever the program rather than the command is meant.