42 citations · 325 across the 25 of their papers we have counts for
17 papers · 1 filter
Two Higgs Doublet Solutions to the Strong CP Problem
Quentin Bonnefoy, Lawrence J. Hall, Claudio Andrea Manzari +1
We solve the strong CP problem in a broad class of two Higgs doublet theories that will be probed at the Large Hadron Collider and at future colliders. These theories feature CP an…
Momentum and Matter Matter for Axion Dark Matter Matters on Earth
Abhishek Banerjee, Itay M. Bloch, Quentin Bonnefoy +5
We investigate the implications of matter effects to searches for axion Dark Matter on Earth. The finite momentum of axion Dark Matter is crucial to elucidating the effects of Eart…
Aligned Yet Large Dipoles: a SMEFT Study
Quentin Bonnefoy, Jonathan Kley, Di Liu +2
We study a non-universal flavor scenario at the level of the Standard Model Effective Field Theory, according to which the matrix of Wilson coefficients of an up-type elec…
The Cosmological Dynamics of String Theory Axion Strings
Joshua N. Benabou, Quentin Bonnefoy, Malte Buschmann +2
The quantum chromodynamics (QCD) axion may solve the strong CP problem and explain the dark matter (DM) abundance of our Universe. The axion was originally proposed to arise as the…
Dark Matter in A Mirror Solution to the Strong CP Problem
Quentin Bonnefoy, Lawrence Hall, Claudio Andrea Manzari +2
We study thermal production of dark matter (DM) in a realization of the minimal models of Ref.~\cite{Bonnefoy:2023afx}, where parity is used to solve the strong CP problem by trans…
A Colorful Mirror Solution to the Strong CP Problem
Quentin Bonnefoy, Lawrence Hall, Claudio Andrea Manzari +1
We propose theories of a complete mirror world with parity (P) solving the strong CP problem. P exchanges the entire Standard Model (SM) with its mirror copy. We derive bounds on t…
Opportunistic CP Violation
Quentin Bonnefoy, Emanuele Gendy, Christophe Grojean +1
In the electroweak sector of the Standard Model, CP violation arises through a very particular interplay between the three quark generations, as described by the Cabibbo--Kobayashi…
Heavy fields and the axion quality problem
Quentin Bonnefoy
The idea that the gravity-induced breaking of global symmetries is encoded in Planck-suppressed operators is not scale-invariant: heavy particles which have nothing to do with the…
The shift-invariant orders of an ALP
Quentin Bonnefoy, Christophe Grojean, Jonathan Kley
It is generally believed that global symmetries, in particular axion shift symmetries, can only be approximate. This motivates us to quantify the breaking of the shift invariance t…
Beyond Jarlskog: 699 invariants for CP violation in SMEFT
Quentin Bonnefoy, Emanuele Gendy, Christophe Grojean +1
As SMEFT is a framework of growing importance to analyze high-energy data, understanding its parameter space is crucial. The latter is commonly split into CP-even and CP-odd parts,…
Flavoured Warped Axion
Quentin Bonnefoy, Peter Cox, Emilian Dudas +2
We consider a 5D extension of the DFSZ axion model that addresses both the axion quality and fermion mass hierarchy problems, and predicts flavour-dependent, off-diagonal axion-fer…
Comments on gauge anomalies at dimension-six in the Standard Model Effective Field Theory
Quentin Bonnefoy, Luca Di Luzio, Christophe Grojean +2
We study whether higher-dimensional operators in effective field theories, in particular in the Standard Model Effective Field Theory (SMEFT), can source gauge anomalies via the mo…
Positivity bounds on Minimal Flavor Violation
Quentin Bonnefoy, Emanuele Gendy, Christophe Grojean
From general analyticity and unitarity requirements on the UV theory, positivity bounds on the Wilson coefficients of the dimension-8 operators composed of 4 fermions and two deriv…
The Anomalous Case of Axion EFTs and Massive Chiral Gauge Fields
Quentin Bonnefoy, Luca Di Luzio, Christophe Grojean +2
We study axion effective field theories (EFTs), with a focus on axion couplings to massive chiral gauge fields. We investigate the EFT interactions that participate in processes wi…
Chiral Froggatt-Nielsen models, gauge anomalies and flavourful axions
Q. Bonnefoy, E. Dudas, S. Pokorski
We study UV-complete Froggatt-Nielsen-like models for the generation of mass and mixing hierarchies, assuming that the integrated heavy fields are chiral with respect to an abelian…
Axions and anomalous 's
Quentin Bonnefoy, Emilian Dudas
Inspired by recent studies of high-scale decay constant or flavorful QCD axions, we review and clarify their existence in effective string models with anomalous gauge groups…
Axions in a highly protected gauge symmetry model
Quentin Bonnefoy, Emilian Dudas, Stefan Pokorski
We study QCD axion or cosmological axion-like particles (ALPs) in a model inspired by the recent interest in 4-dimensional clockwork models, with the global symmetry being accident…