5 papers · 1 filter
Renormalization of the SMEFT to Dimension Eight: Fermionic Interactions II
Supratim Das Bakshi, Mikael Chala, Zhe Ren
We compute the one-loop mixing of bosonic and two-fermion interactions into two-fermion operators in the dimension-eight Standard Model Effective Field Theory (SMEFT). Together wit…
The High-Temperature Limit of the SM(EFT)
Mikael Chala, Guilherme Guedes
We derive the one-loop effective 3-dimensional Lagrangian that describes the high-temperature limit of the electroweak theory, to order in coupling constants …
Renormalization of the SMEFT to dimension eight: Fermionic interactions I
S. D. Bakshi, M. Chala, Á. Díaz-Carmona +2
This is the third of a series of works (arxiv:2106.05291, arxiv:2205.03301) aimed at renormalizing the Standard Model effective field theory at one loop and to order , with…
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…
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…