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arXiv · 1405.2924

EFT naturalness: an effective field theory analysis of Higgs naturalness

Shaouly Bar-Shalom·Amarjit Soni·Jose Wudka
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Abstract

Assuming the presence of physics beyond the Standard Model (SM) with a characteristic scale M ~ 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 Λ< M, a condition we denote by "EFT-naturalness". We also determine the types of physics that can lead to EFT-naturalness and show that these types of new physics are best probed in vector-boson and multiple-Higgs production. The current experimental constraints on these coefficients are also discussed.

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Shaouly Bar-Shalom, Amarjit Soni, Jose Wudka. 2015-03-04. EFT naturalness: an effective field theory analysis of Higgs naturalness. https://arxiv.org/abs/1405.2924

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