Speaker
Shaouly Bar-Shalom
(Technion, Israel)
Description
An effective field theory (EFT) approach is used to investigate naturalness of the Higgs sector at scales below $M \sim {\cal O}(10)$ TeV. In particular, we obtain the leading 1-loop EFT contributions to the Higgs mass with a Wilsonian-like hard cutoff $\Lambda$ (i.e., $\Lambda < M$), and determine the constraints on the corresponding operator coefficients for these effects to alleviate the little hierarchy problem up to the scale of the effective action $\Lambda$; a condition we denote by ``EFT-naturalness''. We also discuss the specific types of physics that can lead to “EFT-naturalness” and their potential signatures at a future $e^+e^-$ collider, e.g., in the production of multiple vector-bosons and/or Higgs-bosons.
Primary author
Shaouly Bar-Shalom
(Technion, Israel)
