329 citations · 2.2k across the 39 of their papers we have counts for
40 papers
How large can lepton mixing be?
J. de Blas, C. Giuliano, G. Guedes +2
We show that, contrary to common expectations, the observed charged leptons can have a substantial mixing with new heavier fermions, at the level of 20. This can happen, in the…
Impact of Higgs-boson measurements on SMEFT fits
J. de Blas, A. Goncalves, V. Miralles +3
We present current bounds on SMEFT operators that are mainly constrained by Higgs-boson observables, under different assumptions for the flavour structure of the UV theory. We inve…
Focus topics for the ECFA study on Higgs / Top / EW factories
Jorge de Blas, Patrick Koppenburg, Jenny List +105
In order to stimulate new engagement and trigger some concrete studies in areas where further work would be beneficial towards fully understanding the physics potential of an $e^+e…
Computing Tools for Effective Field Theories
Jason Aebischer, Matteo Fael, Javier Fuentes-Martín +30
In recent years, theoretical and phenomenological studies with effective field theories have become a trending and prolific line of research in the field of high-energy physics. In…
Global SMEFT Fits at Future Colliders
Jorge de Blas, Yong Du, Christophe Grojean +6
Based on the framework of Standard Model Effective Field Theory, we performed a few global fits, each containing a subset of dimension-6 operators, for the measurements that are ex…
Impact of the recent measurements of the top-quark and W-boson masses on electroweak precision fits
J. de Blas, M. Pierini, L. Reina +1
We assess the impact of the very recent measurement of the top-quark mass by the CMS Collaboration on the fit of electroweak data in the Standard Model and beyond, with particular…
The Future Circular Collider: a Summary for the US 2021 Snowmass Process
G. Bernardi, E. Brost, D. Denisov +41
In this white paper for the 2021 Snowmass process, we give a description of the proposed Future Circular Collider (FCC) project and its physics program. The paper summarizes and up…
Off-shell Higgs Interpretations Task Force: Models and Effective Field Theories Subgroup Report
Aleksandr Azatov, Jorge de Blas, Adam Falkowski +8
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 th…
Higgs probes of top quark contact interactions and their interplay with the Higgs self-coupling
Lina Alasfar, Jorge de Blas, Ramona Gröber
We calculate the dominant contributions of third generation four-quark operators to single-Higgs production and decay. They enter via loop corrections to Higgs decays into gluons,…
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…
Global analysis of electroweak data in the Standard Model
J. de Blas, M. Ciuchini, E. Franco +5
We perform a global fit of electroweak data within the Standard Model, using state-of-the art experimental and theoretical results, including a determination of the electromagnetic…
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.
anomalies under the lens of electroweak precision
Lina Alasfar, Aleksandr Azatov, Jorge de Blas +2
The measurements carried out at LEP and SLC projected us into the precision era of electroweak physics. This has also been relevant in the theoretical interpretation of LHCb and Be…
: a Code for the Combination of Indirect and Direct Constraints on High Energy Physics Models
Jorge de Blas, Debtosh Chowdhury, Marco Ciuchini +15
is a flexible open-source tool which, given the Standard Model or any of its extensions, allows to fit the model parameters to a given set of experi…
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…
Higgs Boson Studies at Future Particle Colliders
J. de Blas, M. Cepeda, J. D'Hondt +8
This document aims to provide an assessment of the potential of future colliding beam facilities to perform Higgs boson studies. The analysis builds on the submissions made by the…
Current and future constraints on Higgs couplings in the nonlinear Effective Theory
Jorge de Blas, Otto Eberhardt, Claudius Krause
We perform a Bayesian statistical analysis of the constraints on the nonlinear Effective Theory given by the Higgs electroweak chiral Lagrangian. We obtain bounds on the effective…
Effective description of general extensions of the Standard Model: the complete tree-level dictionary
J. de Blas, J. C. Criado, M. Perez-Victoria +1
We compute all the tree-level contributions to the Wilson coefficients of the dimension-six Standard-Model effective theory in ultraviolet completions with general scalar, spinor a…
Electroweak precision constraints at present and future colliders
Jorge de Blas, Marco Ciuchini, Enrico Franco +4
We revisit the global fit to electroweak precision observables in the Standard Model and present model-independent bounds on several general new physics scenarios. We present a pro…
Electroweak precision observables and Higgs-boson signal strengths in the Standard Model and beyond: present and future
Jorge de Blas, Marco Ciuchini, Enrico Franco +4
We present results from a state-of-the-art fit of electroweak precision observables and Higgs-boson signal-strength measurements performed using 7 and 8 TeV data from the Large Had…
New vector bosons and the diphoton excess
Jorge de Blas, Jose Santiago, Roberto Vega-Morales
We consider the possibility that the recently observed diphoton excess at GeV can be explained by the decay of a scalar particle () to photons. If the scalar is the r…
Renormalization Group Constraints on New Top Interactions from Electroweak Precision Data
Jorge de Blas, Mikael Chala, Jose Santiago
Anomalous interactions involving the top quark contribute to some of the most difficult observables to directly access experimentally. They can give however a sizeable correction t…
Observable Effects of General New Scalar Particles
Jorge de Blas, Mikael Chala, Manuel Perez-Victoria +1
We classify all possible new scalar particles that can have renormalizable linear couplings to Standard Model fields and therefore be singly produced at colliders. We show that thi…
Global Bayesian Analysis of the Higgs-boson Couplings
Jorge de Blas, Marco Ciuchini, Enrico Franco +5
We present preliminary results of a bayesian fit to the Wilson coefficients of the Standard Model gauge invariant dimension-6 operators involving one or more Higgs fields, using da…