181 citations · 1.3k across the 31 of their papers we have counts for
30 papers · 1 filter
The inseparable three and four tops
Gauthier Durieux, Hesham El Faham, Rikkert Frederix +2
In measurements of four-top-quark production (), LHC collaborations observe a significant degeneracy with three-top-quark production. We compute the dominant three-top-produc…
Snowmass White Paper: prospects for the measurement of top-quark couplings
Gauthier Durieux, Abel Gutiérrez Camacho, Luca Mantani +6
In this contribution to the 2021 Snowmass community planning exercise that informs the American strategy for particle physics, we present the prospects for measurements of the top-…
Theoretical developments in the SMEFT at dimension-8 and beyond
Simone Alioli, Radja Boughezal, Weiguang Cao +24
In this contribution to the Snowmass 2021 process we review theoretical developments in the Standard Model Effective Field Theory (SMEFT) with a focus on effects at the dimension-8…
Gegenbauer's Twin
Gauthier Durieux, Matthew McCullough, Ennio Salvioni
In Twin Higgs models the dominant source of fine-tuning is the cancellation of order required to obtain a Standard Model-like Higgs, where and are the electroweak…
Truncation, validity, uncertainties
Ilaria Brivio, Sally Dawson, Jorge de Blas +19
The truncation of the standard-model effective field theory, its validity and the associated uncertainties have been discussed in meetings of the LHC EFT WG. Proposals were made by…
On-shell Higgsing for EFTs
Reuven Balkin, Gauthier Durieux, Teppei Kitahara +2
We study the on-shell version of the Higgs mechanism in effective theories (EFTs) containing particles of different spins, focusing on contact terms as a simple starting point. We…
Electroweak input parameters
Ilaria Brivio, Sally Dawson, Jorge de Blas +7
Different sets of electroweak input parameters are discussed for SMEFT predictions at the LHC. The {Gmu,mZ,mW} one is presently recommended.
Automated one-loop computations in the SMEFT
Céline Degrande, Gauthier Durieux, Fabio Maltoni +3
We present the automation of one-loop computations in the standard-model effective field theory at dimension six. Our general implementation, dubbed SMEFT@NLO, covers all types of…
Constructing massive on-shell contact terms
Gauthier Durieux, Teppei Kitahara, Camila S. Machado +2
The purely on-shell approach to effective field theories requires the construction of independent contact terms. Employing the little-group-covariant massive-spinor formalism, we p…
Enumerating higher-dimensional operators with on-shell amplitudes
Gauthier Durieux, Camila S. Machado
We establish a simple formula for the minimal dimension of operators leading to any helicity amplitude. It eases the systematic enumeration of independent operators from the constr…
The electroweak effective field theory from on-shell amplitudes
Gauthier Durieux, Teppei Kitahara, Yael Shadmi +1
We apply on-shell methods to the bottom-up construction of electroweak amplitudes, allowing for both renormalizable and non-renormalizable interactions. We use the little-group cov…
The electro-weak couplings of the top and bottom quarks -- global fit and future prospects
Gauthier Durieux, Adrian Irles, Víctor Miralles +4
We evaluate the implications of LHC and LEP/SLC measurements for the electro-weak couplings of the top and bottom quarks. We derive global bounds on the Wilson coefficients of ten…
On the future of Higgs, electroweak and diboson measurements at lepton colliders
Jorge de Blas, Gauthier Durieux, Christophe Grojean +2
LEP precision on electroweak measurements was sufficient not to hamper the extraction of Higgs couplings at the LHC. But the foreseen permille-level Higgs measurements at future le…
Proposal for the validation of Monte Carlo implementations of the standard model effective field theory
Gauthier Durieux, Ilaria Brivio, Fabio Maltoni +38
We propose a procedure to cross-validate Monte Carlo implementations of the standard model effective field theory. It is based on the numerical comparison of squared amplitudes com…
Probing top-quark couplings indirectly at Higgs factories
Gauthier Durieux, Jiayin Gu, Eleni Vryonidou +1
We perform a global effective-field-theory analysis to assess the combined precision on Higgs couplings, triple gauge-boson couplings, and top-quark couplings, at future circular $…
The top-quark window on compositeness at future lepton colliders
Gauthier Durieux, Oleksii Matsedonskyi
In composite Higgs (CH) models, large mixings between the top quark and the new strongly interacting sector are required to generate its sizeable Yukawa coupling. Precise measureme…
Global and optimal probes for the top-quark effective field theory at future lepton colliders
Gauthier Durieux, Martín Perelló, Marcel Vos +1
We study the sensitivity to physics beyond the standard model of precise top-quark pair production measurements at future lepton colliders. A global effective-field-theory approach…
A global view on the Higgs self-coupling at lepton colliders
Stefano Di Vita, Gauthier Durieux, Christophe Grojean +5
We perform a global effective-field-theory analysis to assess the precision on the determination of the Higgs trilinear self-coupling at future lepton colliders. Two main scenarios…
Precision constraints on the top-quark effective field theory at future lepton colliders
Gauthier Durieux
We examine the constraints that future lepton colliders would impose on the effective field theory describing modifications of top-quark interactions beyond the standard model, thr…
The leptonic future of the Higgs
Gauthier Durieux, Christophe Grojean, Jiayin Gu +1
Precision study of electroweak symmetry breaking strongly motivates the construction of a lepton collider with center-of-mass energy of at least 240 GeV. Besides Higgsstrahlung ($e…
Minimally extended SILH
Mikael Chala, Gauthier Durieux, Christophe Grojean +2
Higgs boson compositeness is a phenomenologically viable scenario addressing the hierarchy problem. In minimal models, the Higgs boson is the only degree of freedom of the strong s…
CP violation in multibody decays of beauty baryons
Gauthier Durieux
Beauty baryons are being observed in large numbers in the LHCb detector. The rich kinematic distributions of their multibody decays are therefore becoming accessible and provide us…
Rare Z Decays and Neutrino Flavor Universality
Gauthier Durieux, Yuval Grossman, Matthias König +2
We study rare four-body decays of the Z-boson involving at least one neutrino and one charged lepton. Large destructive interferences make these decays very sensitive to the Z coup…
Probing CP violation systematically in differential distributions
Gauthier Durieux, Yuval Grossman
We revisit the topic of triple-product asymmetries which probe CP violation through differential distributions. We construct distributions with well-defined discrete symmetry prope…