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hep-ph2023
The Landscape of Composite Higgs Models
Mikael Chala, Renato Fonseca
We classify all different composite Higgs models (CHMs) characterised by the coset space of compact semi-simple Lie groups and inv…
hep-ph2023
Positivity restrictions on the mixing of dimension-eight SMEFT operators
Mikael Chala, Xu Li
We discuss the structure of the mixing among dimension-eight operators in the SMEFT relying on the positivity of two-to-two forward scattering amplitudes. We uncover tens of new no…