Hi, I would like to ask you if it is possible to use the package SARAH for computing RGEs in the presence of gravity.
For example, people study RGEs of the nonminimal coupling of Higgs to gravity (the nonminimal Higgs inflation). I wonder if it is possible by using SARAH. Any suggestion of any kind of tools in regard of this computation will be very helpful.

Thank you.

Hi,

no, SARAH supports only renormalisable models, i.e. no gravity can be included. I'm also not aware of any tool which can automatically calculate the RGEs in the presence of gravity.

Sorry,
Florian

Thank you so much for your reply.
Then, I need to try to find a way to modify some propagators which effectively reflects my purposes.