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arXiv · 1410.7703

The Effective Standard Model after LHC Run I

John Ellis·Veronica Sanz·Tevong You
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Abstract

We treat the Standard Model as the low-energy limit of an effective field theory that incorporates higher-dimensional operators to capture the effects of decoupled new physics. We consider the constraints imposed on the coefficients of dimension-6 operators by electroweak precision tests (EWPTs), applying a framework for the effects of dimension-6 operators on electroweak precision tests that is more general than the standard $S,T$ formalism, and use measurements of Higgs couplings and the kinematics of associated Higgs production at the Tevatron and LHC, as well as triple-gauge couplings at the LHC. We highlight the complementarity between EWPTs, Tevatron and LHC measurements in obtaining model-independent limits on the effective Standard Model after LHC Run~1. We illustrate the combined constraints with the example of the two-Higgs doublet model.

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John Ellis, Veronica Sanz, Tevong You. 2014-10-28. The Effective Standard Model after LHC Run I. https://arxiv.org/abs/1410.7703

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