The effective Standard Model after LHC Run I

Ellis, John, Sanz, Verónica and You, Tevong (2015) The effective Standard Model after LHC Run I. Journal of High Energy Physics, 2015 (3). a157. ISSN 1126-6708

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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.

Item Type: Article
Schools and Departments: School of Mathematical and Physical Sciences > Physics and Astronomy
Research Centres and Groups: Theoretical Particle Physics Research Group
Subjects: Q Science > QC Physics
Depositing User: Billy Wichaidit
Date Deposited: 26 Jul 2017 11:41
Last Modified: 26 Jul 2017 12:00
URI: http://sro.sussex.ac.uk/id/eprint/69453

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Project NameSussex Project NumberFunderFunder Ref
Particle Physics Theory at Royal Holloway and SussexG0742STFC-SCIENCE AND TECHNOLOGY FACILITIES COUNCILST/J000477/1