22-29 July 2015
Europe/Vienna timezone

EFT-naturalness: an effective field theory analysis of Higgs naturalness

Jul 23, 2015, 11:30 AM
Großer Festsaal

Großer Festsaal

talk Higgs and New Physics Higgs and New Physics


Dr Shaouly Bar-Shalom (Technion, Israel)


Assuming the presence of physics beyond the Standard Model with a characteristic scale $M \sim O(10 ~ TeV)$, we investigate the naturalness of the Higgs sector at scales below $M$ using an effective field theory (EFT) approach. We obtain the leading 1-loop EFT contributions to the Higgs mass with a Wilsonian-like hard cutoff, 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 < M $; a condition we denote by ***``EFT-naturalness''***. We also discuss the types of physics that can lead to ***EFT-naturalness*** and obtain the current experimental constraints on the relevant operator coefficients; it is shown that these types of new physics are best probed in vector-boson and multiple-Higgs production.

additional information

e-Print: arXiv:1405.2924 [hep-ph]

Primary author

Dr Shaouly Bar-Shalom (Technion, Israel)


Dr Amarjit Soni (BNL, USA) Prof. Jose Wudka (UCR, USA)

Presentation materials