280 citations · 1.6k across the 34 of their papers we have counts for
36 papers · 1 filter
Towards precise baryogenesis in the 2HDM
T. Gent, S. Huber, K. Mimasu +1
We perform a detailed investigation of the viable baryogenesis parameter space of a non-minimal Higgs sector consisting of two Higgs doublets and a singlet pseudoscalar (2HDM).…
Electroweak corrections in the SMEFT: four-fermion operators at high energies
Hesham El Faham, Ken Mimasu, Davide Pagani +3
In the Standard Model (SM), electroweak (EW) corrections become significant at high energies, particularly at the tera-electronvolt scale and beyond, due to the presence of Sudakov…
Triboson production in the SMEFT
Eugenia Celada, Gauthier Durieux, Ken Mimasu +1
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 pre…
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…
Top-philic ALP phenomenology at the LHC: the elusive mass-window
Simone Blasi, Fabio Maltoni, Alberto Mariotti +3
We study the LHC phenomenology of an Axion Like Particle (ALP) that couples only derivatively with the top quark at tree level. We inspect the radiatively induced couplings with th…
Dimension-8 SMEFT Analysis of Minimal Scalar Field Extensions of the Standard Model
John Ellis, Ken Mimasu, Francesca Zampedri
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 sing…
Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
Maeve Madigan
The Standard Model Effective Field Theory (SMEFT) provides a powerful theoretical framework for searching for subtle deviations from the Standard Model. In this talk, we present th…
Baryogenesis from spontaneous CP violation in the early Universe
S. J. Huber, K. Mimasu, J. M. No
We propose a variant of electroweak-scale baryogenesis characterized by the spontaneous breaking of the charge-parity (CP) symmetry in the early Universe driven by the vacuum expec…
Moments for positivity: using Drell-Yan data to test positivity bounds and reverse-engineer new physics
Xu Li, Ken Mimasu, Kimiko Yamashita +3
Moments of the leptonic angular distribution in the Drell-Yan process have recently been shown to be sensitive probes of a specific class of dimension-8, four-fermion operators in…
SMEFT Analysis of
Emanuele Bagnaschi, John Ellis, Maeve Madigan +3
We use the Fitmaker tool to incorporate the recent CDF measurement of in a global fit to electroweak, Higgs, and diboson data in the Standard Model Effective Field Theory (SM…
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…
Single top production in association with a pair at the LHC in the SMEFT
Hesham El Faham, Fabio Maltoni, Ken Mimasu +1
We study single top quark production in association with a pair at the LHC in the context of the Standard Model (SM) and the Standard Model Effective Field Theory (SMEFT). A s…
Top quark electroweak interactions
Ken Mimasu
I discuss how modified EW interactions lead to energy growth in scattering amplitudes and how the framework of the Standard Model Effective Field Theory can be used in con…
Top, Higgs, Diboson and Electroweak Fit to the Standard Model Effective Field Theory
John Ellis, Maeve Madigan, Ken Mimasu +2
The search for effective field theory deformations of the Standard Model (SM) is a major goal of particle physics that can benefit from a global approach in the framework of the St…
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…
Enlarging the scope of resonant di-Higgs searches: Hunting for Higgs-to-Higgs cascades in final states at the LHC and future colliders
D. Barducci, K. Mimasu, J. M. No +2
We extend the coverage of resonant di-Higgs searches in the final state to the process , where both …
Modified interactions in the top-quark electroweak sector: exploiting unitarity violating effects at the amplitude level to probe New Physics
Fabio Maltoni, Luca Mantani, Ken Mimasu
We present a broad study of collider processes that embed scattering amplitudes involving top quarks in the Electroweak sector. We parametrise the modified interactions u…
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…
Top-quark electroweak interactions at high energy
Fabio Maltoni, Luca Mantani, Ken Mimasu
Modified interactions in the electroweak sector may lead to scattering amplitudes that grow with energy compared to their Standard Model (SM) counterparts. We present a detailed st…
The CLIC Potential for New Physics
J. de Blas, R. Franceschini, F. Riva +100
The Compact Linear Collider (CLIC) is a mature option for the future of high energy physics. It combines the benefits of the clean environment of colliders with operation…
Learning to pinpoint effective operators at the LHC: a study of the signature
Jorgen D'Hondt, Alberto Mariotti, Ken Mimasu +2
In the context of the Standard Model effective field theory (SMEFT), we study the LHC sensitivity to four fermion operators involving heavy quarks by employing cross section measur…
Learning to pinpoint effective operators at the LHC: a study of the signature
Jorgen D'Hondt, Alberto Mariotti, Ken Mimasu +2
In the context of the Standard Model effective field theory (SMEFT), we study the LHC sensitivity to four fermion operators involving heavy quarks by employing cross section measur…
Single-top associated production with a or boson at the LHC: the SMEFT interpretation
Celine Degrande, Fabio Maltoni, Ken Mimasu +2
At the LHC, top quarks can be produced singly with a sizeable rate via electroweak interactions. This process probes a limited set of top-quark electroweak couplings, i.e. , the sa…
Les Houches 2017: Physics at TeV Colliders New Physics Working Group Report
G. Brooijmans, M. Dolan, S. Gori +80
We present the activities of the `New Physics' working group for the `Physics at TeV Colliders' workshop (Les Houches, France, 5--23 June, 2017). Our report includes new physics st…