134 citations · 202 across the 17 of their papers we have counts for
18 papers
Probing lepton dipole moments at FCC-ee
Dario Buttazzo, Gabriele Levati, Yang Ma +3
We study the sensitivity of future high-luminosity colliders to the electromagnetic and weak dipole moments of the lepton within the Standard Model Effective Field The…
Probing lepton dipole moments at future Lepton Colliders
Dario Buttazzo, Gabriele Levati, Yang Ma +3
The electric and magnetic dipole moments of the electron and of the muon provide stringent tests of the Standard Model and sensitive probes of new physics. By contrast, the corresp…
Four-fermion operators, -boson exchange, and lepton dipole moments
Joël Gogniat, Martin Hoferichter, Gabriele Levati
Asymmetry measurements in constitute a promising avenue to obtain competitive constraints on the dipole moments, the anomalous magnetic moment and the e…
On the decay of a light spinless particle into two photons
Ferruccio Feruglio, Gabriele Levati, Robert Ziegler
We analyze the effective couplings of a light, spinless, gauge-singlet particle to on-shell photons. Starting from the most general theory at the electroweak scale, which allow…
Light new physics and the lepton dipole moments
Martin Hoferichter, Gabriele Levati
Testing New-Physics (NP) scenarios that couple predominantly to the third generation is notoriously difficult experimentally, as exemplified by comparing limits for the lepton…
MuCol Milestone Report No. 7: Consolidated Parameters
Rebecca Taylor, Antoine Chancé, Dario Augusto Giove +459
This document is comprised of a collection of consolidated parameters for the key parts of the muon collider. These consolidated parameters follow on from the October 2024 Prelimin…
Light new physics and the lepton dipole moments: prospects at Belle II
Martin Hoferichter, Gabriele Levati
While electron and muon dipole moments are well-established precision probes of physics beyond the standard model, it is notoriously challenging to test realistic new-physics (NP)…
Positivity and partial wave unitarity bounds on ALP theories via amplitude methods
Luigi C. Bresciani, Gabriele Levati, Paride Paradisi
We derive the complete set of partial wave unitarity bounds on the most general Axion-Like Particle (ALP) effective interactions up to dimension 8 in the limit of large center-of-m…
The anomalous magnetic moment of the muon in the Standard Model: an update
R. Aliberti, T. Aoyama, E. Balzani +232
We present the current Standard Model (SM) prediction for the muon anomalous magnetic moment, , updating the first White Paper (WP20) [1]. The pure QED and electroweak contrib…
The Muon Collider
Carlotta Accettura, Simon Adrian, Rohit Agarwal +450
Muons offer a unique opportunity to build a compact high-energy electroweak collider at the 10 TeV scale. A Muon Collider enables direct access to the underlying simplicity of the…
Amplitudes and partial wave unitarity bounds
Luigi C. Bresciani, Gabriele Levati, Paride Paradisi
We develop a formalism, based on spinor-helicity techniques, to generalize the formulation of partial wave unitarity bounds. We discuss unitarity bounds for (with $N,M \g…
Renormalization of effective field theories via on-shell methods: the case of axion-like particles
Luigi C. Bresciani, Giacomo Brunello, Gabriele Levati +2
We consider the most general axion-like particle effective field theory, including both CP-odd and CP-even types of interactions, and evaluate the corresponding renormalization gro…
Collider and astrophysical signatures of light scalars with enhanced couplings
Jorge Alda, Gabriele Levati, Paride Paradisi +2
Beyond Standard Model scenarios addressing the flavor puzzle and the hierarchy problem generally predict dominant new physics couplings with fermions of the third generation. In th…
CP-Violating Axions: A Theory Review
Luca Di Luzio, Hector Gisbert, Gabriele Levati +2
We review the physics case for CP-violating axions. In the first part, we focus on the Quantum Chromodynamics (QCD) axion and argue that new sources of CP violation beyond QCD misa…
Anomalous Dimensions via on-shell Methods: Operator Mixing and Leading Mass Effects
L. C. Bresciani, G. Levati, P. Mastrolia +1
We elaborate on the application of on-shell and unitarity-based methods for evaluating renormalization group coefficients, and generalize this framework to account for the mixing o…
The Chiral Lagrangian of CP-Violating Axion-Like Particles
Luca Di Luzio, Gabriele Levati, Paride Paradisi
We discuss the construction of the most general CP-violating chiral Lagrangian for an axion-like particle (ALP). Starting with an effective Lagrangian containing light quarks and g…
Low-energy flavour probes of light vector bosons
Luca Di Luzio, Gabriele Levati, Paride Paradisi +1
In this work, we construct the chiral Lagrangian for a light spin-1 boson possessing both vectorial and axial couplings to the light Standard Model quarks . We then us…
Flavour constraints on light spin-1 bosons within a chiral Lagrangian approach
Luca Di Luzio, Gabriele Levati, Paride Paradisi +1
We discuss the construction of the chiral Lagrangian for a light spin-1 boson, here denoted as , featuring both vector and axial-vector couplings to light quarks. Focusi…