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Related papers: Precise SMEFT predictions for di-Higgs production

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We calculate the total and partial inclusive Higgs widths at leading order in the Standard Model Effective Field Theory (SMEFT). We report results incorporating SMEFT corrections for two and four body Higgs decays through vector currents in…

High Energy Physics - Phenomenology · Physics 2019-10-10 Ilaria Brivio , Tyler Corbett , Michael Trott

We present a study of four top quark production at the LHC in the Standard Model Effective Field Theory (SMEFT). The analysis is performed at the tree-level, including all terms from the mixed QCD-EW-coupling cross-section expansion and all…

High Energy Physics - Phenomenology · Physics 2022-11-24 Hesham El Faham

The study of Higgs boson production at large transverse momentum is one of the new frontiers for the LHC Higgs physics programme. This paper considers boosted Higgs production in the Standard Model Effective Field Theory (SMEFT). We focus…

High Energy Physics - Phenomenology · Physics 2021-12-08 Marco Battaglia , Massimiliano Grazzini , Michael Spira , Marius Wiesemann

We perform a detailed study of double Higgs production via gluon fusion in the Effective Field Theory (EFT) framework where effects from new physics are parametrized by local operators. Our analysis provides a perspective broader than the…

High Energy Physics - Phenomenology · Physics 2015-07-29 Aleksandr Azatov , Roberto Contino , Giuliano Panico , Minho Son

This note gives an overview of the tools for the precision matching of ultraviolet theories to the Standard Model effective field theory (SMEFT) at the tree level and one loop. Several semi- and fully automated codes are presented, as well…

The Standard Model Effective Field Theory (SMEFT) provides a robust framework for probing deviations in the couplings of Standard Model particles from their theoretical predictions. This framework relies on an expansion in…

High Energy Physics - Phenomenology · Physics 2025-01-22 Nilabhra Adhikary , Tisa Biswas , Joydeep Chakrabortty , Christoph Englert , Michael Spannowsky

We investigate single Higgs and Higgs pair production at the LHC in models of Universal Extra Dimensions. After calculating the relevant cross sections, we use the UED model as a testing ground for the Effective Field Theory approach to…

High Energy Physics - Phenomenology · Physics 2015-11-23 Lisa Edelhaeuser , Alexander Knochel , Thomas Steeger

The Standard Model Effective Field Theory (SMEFT) provides a consistent framework for comparing precision measurements at the LHC to the Standard Model. The observation of statistically significant non-zero SMEFT coefficients would…

High Energy Physics - Phenomenology · Physics 2021-04-27 Sally Dawson , Samuel Homiller , Samuel D. Lane

In this work we study the matching between the two most popular effective field theories for beyond standard model Higgs physics, SMEFT and HEFT. To perform this matching we follow the approach of identifying the corresponding scattering…

High Energy Physics - Phenomenology · Physics 2025-11-21 D. Domenech , M. Herrero , R. A. Morales , A. Salas-Bernárdez

We study Higgs boson production via vector boson fusion at the LHC, focusing on the process $pp \to H + jj$ and capturing the leading energy-enhanced contributions within the Standard Model Effective Field Theory (SMEFT) up to order…

High Energy Physics - Phenomenology · Physics 2025-03-18 Benoît Assi , Adam Martin

Motivated by the updated HL-LHC projections for Higgs pair production from ATLAS and CMS and by the release of the FCC-ee Feasibility Study, we critically revisit the sensitivity of the global SMEFT analysis to deformations of the Higgs…

High Energy Physics - Phenomenology · Physics 2025-07-22 Jaco ter Hoeve , Luca Mantani , Juan Rojo , Alejo N. Rossia , Eleni Vryonidou

We investigate the role of anomalous gauge boson and fermion couplings on the production of $WZ$ and $W^+W^-$ pairs at the LHC to NLO QCD in the Standard Model effective field theory, including dimension-6 operators. Our results are…

High Energy Physics - Phenomenology · Physics 2020-01-01 Julien Baglio , Sally Dawson , Samuel Homiller

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…

High Energy Physics - Phenomenology · Physics 2019-02-19 Ilaria Brivio , Michael Trott

Deviations from the Standard Model (SM) can be parameterized in terms of the SM effective field theory (SMEFT), which is typically truncated at dimension-6. Including higher dimension operators -- as well as considering simultaneous…

High Energy Physics - Phenomenology · Physics 2024-02-16 Konstantin Asteriadis , Sally Dawson , Duarte Fontes

A global analysis of the Standard Model Effective Field Theory (SMEFT) with SFitter is performed using measurements of single top quark production and top quark decay processes from ATLAS and CMS at center-of-mass energies of 7, 8 and 13…

High Energy Physics - Phenomenology · Physics 2019-05-10 Rhea Moutafis

In this article we study the phenomenological implications of multiple Higgs boson production from longitudinal vector boson scattering in the context of effective field theories. We find compact representations for effective tree-level…

We compute the two-loop contributions to Higgs production via gluon-gluon fusion ($gg \to h$) and Higgs decay into two photons ($h \to \gamma\gamma$), arising from third-generation four-quark operators in the Standard Model effective field…

High Energy Physics - Phenomenology · Physics 2025-07-29 Ulrich Haisch , Marco Niggetiedt

We study the production of three electroweak gauge bosons at the LHC, in the effective field theory of the standard model, at dimension six and next-to-leading order in QCD. We present results for inclusive cross-sections and differential…

High Energy Physics - Phenomenology · Physics 2024-07-16 Eugenia Celada , Gauthier Durieux , Ken Mimasu , Eleni Vryonidou

We provide the complete set of predictions needed to achieve NLO accuracy in the Standard Model Effective Field Theory at dimension six for Higgs production in gluon fusion. In particular, we compute for the first time the contribution of…

High Energy Physics - Phenomenology · Physics 2018-03-12 Nicolas Deutschmann , Claude Duhr , Fabio Maltoni , Eleni Vryonidou

We study the Higgs couplings involved in the $Zh$ associated production mode at the Large Hadron Collider (LHC) in presence of Higgs-gauge boson coupling modifiers via $\kappa$ framework, and dimension 6 Standard Model Effective Theory…

High Energy Physics - Phenomenology · Physics 2025-07-01 Subhaditya Bhattacharya , Sanjoy Biswas , Abhik Sarkar