Speaker
Dr
Amine Ahriche
Description
Here, we investigate the parameter space of the Georgi-Machacek
(GM) model in both cases where the extra CP-even scalar could be lighter or heavier than the Higgs. W consider many theoretical and experimental constraints, in addition to the constraints from doubly charged
Higgs bosons and Drell-Yan di-photon production and the indirect constraint from the $b\to s$ transition processes. We found that some unwanted wrong minima that may violate the CP and/or the electric charge symmetries; are possible. This excludes about 75 \% of the parameter space. In addition, negative heavy resonance searches exclude a significant part of the viable parameter space.
