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The excluded tan(beta) range and Higgs boson mass regions in the framework of the Minimal Supersymmetric extension of the Standard Model (MSSM) depend on several parameters. The Higgs boson masses, cross-sections and branching fractions…

High Energy Physics - Phenomenology · Physics 2009-10-31 Andre Sopczak

We study Higgs-boson pair production in the Standard Model Effective Field Theory (SMEFT) up to dimension six and in the Higgs Effective Field Theory (HEFT) at leading order in the effective theory expansion, and assess which description is…

High Energy Physics - Phenomenology · Physics 2026-02-19 Íñigo Asiáin , Ramona Gröber , Lorenzo Tiberi

Given the absence of direct evidence for new resonances beyond the Standard Model (BSM) at the Large Hadron Collider (LHC) so far, a complementary strategy to search for new physics in an indirect way is provided by the Standard Model…

High Energy Physics - Phenomenology · Physics 2025-01-16 Jaco ter Hoeve

Effective field theory is an effective approach to parameterizing effects of high energy scale physics in low energy measurements. The two popular frameworks for physics beyond the standard model are the so-called standard model effective…

High Energy Physics - Phenomenology · Physics 2025-08-01 Yi Liao , Xiao-Dong Ma , Yoshiki Uchida

Theoretical interpretations of particle physics data, such as the determination of the Wilson coefficients of the Standard Model Effective Field Theory (SMEFT), often involve the inference of multiple parameters from a global dataset.…

High Energy Physics - Phenomenology · Physics 2023-05-24 Raquel Gomez Ambrosio , Jaco ter Hoeve , Maeve Madigan , Juan Rojo , Veronica Sanz

In this paper we study the use of Machine Learning techniques to exploit kinematic information in VH, the production of a Higgs in association with a massive vector boson. We parametrise the effect of new physics in terms of the SMEFT…

High Energy Physics - Phenomenology · Physics 2019-09-04 Felipe F. Freitas , Charanjit K. Khosa , Verónica Sanz

The accurate simulation of interface-dominated solid mechanics problems on complex microstructures remains challenging, particularly when interface-fitted quadrilateral or hexahedral meshes are difficult to generate. We extend the shifted…

Numerical Analysis · Mathematics 2026-05-05 Cheng-Hau Yang , Mark C. Messner , Tianchen Hu

Measurements of Higgs boson processes by the ATLAS and CMS experiments at the LHC use Simplified Template Cross Sections (STXS) as a common framework for the combination of measurements in different decay channels and their further…

High Energy Physics - Phenomenology · Physics 2025-10-27 Pedro Cal , Matthew A. Lim , Darren J. Scott , Frank J. Tackmann , Wouter J. Waalewijn

There are two canonical approaches to treating the Standard Model as an Effective Field Theory (EFT): Standard Model EFT (SMEFT), expressed in the electroweak symmetric phase utilizing the Higgs doublet, and Higgs EFT (HEFT), expressed in…

High Energy Physics - Phenomenology · Physics 2021-08-11 Timothy Cohen , Nathaniel Craig , Xiaochuan Lu , Dave Sutherland

We develop a demonstrator foundation model for collider-scale explorations of the Standard Model Effective Field Theory (SMEFT), constructed from contrastive representations of theoretically simulated neutral-current Drell-Yan cross…

High Energy Physics - Phenomenology · Physics 2025-12-19 Supratim Das Bakshi , T. J. Hobbs , Brandon Kriesten

The Standard Model effective field theory (SMEFT) is the tool of choice for studying deviations of Higgs couplings from the Standard Model predictions. The SMEFT is an expansion in an infinite tower of higher dimension operators, which is…

High Energy Physics - Phenomenology · Physics 2023-05-12 Sally Dawson , Duarte Fontes , Samuel Homiller , Matthew Sullivan

We present a global interpretation of Higgs, diboson, and top quark production and decay measurements from the LHC in the framework of the Standard Model Effective Field Theory (SMEFT) at dimension six. We constrain simultaneously 36…

High Energy Physics - Phenomenology · Physics 2021-11-02 Jacob J. Ethier , Giacomo Magni , Fabio Maltoni , Luca Mantani , Emanuele R. Nocera , Juan Rojo , Emma Slade , Eleni Vryonidou , Cen Zhang

The ongoing Effective Field Theory (EFT) program at the LHC and elsewhere is motivated by streamlining the connection between experimental data and UV-complete scenarios of heavy new physics beyond the Standard Model (BSM). This connection…

High Energy Physics - Phenomenology · Physics 2024-05-24 Jaco ter Hoeve , Giacomo Magni , Juan Rojo , Alejo N. Rossia , Eleni Vryonidou

This report presents the results of the Models and Effective Field Theories Subgroup of the Off-Shell Interpretations Task Force in the LHC Higgs Working Group. The main goal of the subgroup was to discuss and advance the potential impact…

We analyze the constraints obtainable from present data using the Standard Model Effective Field Theory (SMEFT) on extensions of the Standard Model with additional electroweak singlet or triplet scalar fields. We compare results obtained…

High Energy Physics - Phenomenology · Physics 2023-04-14 John Ellis , Ken Mimasu , Francesca Zampedri

We present a novel framework for carrying out global analyses of the Standard Model Effective Field Theory (SMEFT) at dimension-six: SMEFiT. This approach is based on the Monte Carlo replica method for deriving a faithful estimate of the…

High Energy Physics - Phenomenology · Physics 2019-05-01 Nathan P. Hartland , Fabio Maltoni , Emanuele R. Nocera , Juan Rojo , Emma Slade , Eleni Vryonidou , Cen Zhang

We develop the geometric formulation of the Standard Model Effective Field Theory (SMEFT). Using this approach we derive all-orders results in the $\sqrt{2 \langle H^\dagger H \rangle}/\Lambda$ expansion relevant for studies of electroweak…

High Energy Physics - Phenomenology · Physics 2020-06-12 Andreas Helset , Adam Martin , Michael Trott

We consider the Higgs sector in extensions of the Minimal Supersymmetric Standard Model by higher-dimension operators in the superpotential and the K\"ahler potential, in the context of Higgs searches at the LHC 7 TeV run. Such an effective…

High Energy Physics - Phenomenology · Physics 2013-05-30 Marcela Carena , Eduardo Ponton , Jose Zurita

Nowadays, the Standard Model Effective Field Theory (SMEFT) provides a standard framework to parameterize potential deviations from the Standard Model and to combine information from multiple processes in global analyses. This review…

High Energy Physics - Phenomenology · Physics 2026-03-19 A. Aleshko , E . Boos , V. Bunichev , L. Dudko

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