Speaker
Jason Aebischer
(University of Zurich)
Description
The Standard Model Effective Field Theory (SMEFT) and the Low Energy Effective Field Theory (LEFT) can be extended by adding additional spin 0, 1/2 and 1 dark matter particles which are singlets under the Standard Model (SM) gauge group. In my talk I will classify all gauge invariant interactions in the Lagrangian up to terms of dimension six, and discuss the tree-level matching between the two theories at the electroweak scale.
As an application I will consider a model with dark vector particles obeying a Z2 symmetry. This setup is a viable dark matter model in the freeze-in scenario for a wide range of parameters.
Author
Jason Aebischer
(University of Zurich)
Co-authors
Prof.
Aneesh Vasant Manohar
(Univ. of California San Diego (US))
Elizabeth Ellen Jenkins
(Univ. of California San Diego (US))
Wolfgang Altmannshofer
(UC Santa Cruz)
