Seminarium Kosmologia i Fizyka Cząstek

I will present construction of a basis for effective operators responsible for interactions between the Standard Model and a dark sector composed of particles with spin  0, 1/2 or 1. Redundant operators will be eliminated using dim-4 equations of motion. I will consider simple scenarios where the dark matter components are stabilized against decay by Z_2 symmetries.Operators which are loop-generated within an underlying theory andthose that are potentially tree-level generated will be determined.