Add four-fermion operators with tau's to the TopFCNC4f operator

Shayma Wahdanrequested to merge
shwahdan/MadGraphModels:main into main

Hi,

we would like to update the TopFCNC4f UFO model, which is provided to us by the author Gauthier Durieux.

in this update, the four-fermion operators with tau's are added. tctautau/tctautau and tutautau/tutautau

Thank you and best regards, Shayma (for the ANA- TOPQ-2023-48 analysis team)

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