The standard model as an effective field theory
By Ilaria Brivio, Michael Trott. Physics reports, 2017
660 citations recorded by the source corpus.
Projecting measurements of the interactions of the known Standard Model (SM) states into an effective field theory (EFT) framework is an important goal of the LHC physics program. The interpretation of measurements of the properties of the Higgs-like boson in an EFT allows one to consistently study the properties of this state, while the SM is allowed to eventually break down at higher energies. In this review, basic concepts relevant to the construction of such EFTs are reviewed pedagogically. Electroweak precision data is discussed as a historical example of some importance to illustrate critical consistency issues in interpreting experimental data in EFTs. A future precision Higgs phenomenology program can benefit from the projection of raw experimental results into consistent field theories such as the SM, the SM supplemented with higher dimensional operators (the SMEFT) or an Electroweak chiral Lagrangian with a dominantly $J^P = 0^+$ scalar (the HEFT). We discuss the developing SMEFT and HEFT approaches, that are consistent versions of such EFTs, systematically improvable with higher order corrections, and comment on the pseudo-observable approach. We review the challenges that have been overcome in developing EFT methods for LHC studies, and the challenges that remain.
Subfields: Artificial Intelligence, Nuclear and High Energy Physics
View Paper: https://www.semanticscholar.org/paper/b75e2479fa2d748d0da73e406ea936bed9d3e9f5
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In Nuclear and High Energy Physics
Citations in the corpus
- Electroweak radiative corrections for collider physics (2019, neutral): “[126].”
- The gauge-Higgs legacy of the LHC Run I (2016, background): “In the effective theory version of the Standard Model [16] we assume that departures of Higgs or gauge boson interactions from their SM predictions are characterized by a new energy scale Λ.”
- Combined SMEFT interpretation of Higgs, diboson, and top quark data from the LHC (2021, methodology): “1 Introduction A powerful, model-independent framework to constrain, identify, and parametrise potential deviations with respect to the predictions of the Standard Model (SM) is provided by the Standard Model Effective Field Theory (SMEFT) [1–3], see also [4] for a review.”