Authors

Artur Amorim
University of Porto
artur_at_lip.pt

Model Description

This model is an extension of the Standard Model (SM) that describes in a general way the flavour changing neutral interactions of the top quark with other particles of the SM. The implementation in FeynRules was done in the context of an effective field theory using dimension-six gauge invariant operators. This provides a direct connection between experimental observ-ables and the new anomalous couplings. Because this model just describes interactions of the top quark with other SM particles, there are no additional fields.

Model Implementation

Our lagrangian was derived in the context of an effective field theory using dimension-six gauge invariant operators. In general this lagrangian can be written as