14 papers
Higgs Couplings at a Future Wakefield Collider
Katherine Fraser, Simon Knapen, Kevin Langhoff +1
We explore the potential of multiple possible future 10 TeV wakefield colliders to measure electroweak couplings of the Higgs boson. We find that the beam-beam interactions are not…
The Fate of Ultra-Collinear Modes in On-Shell Massive Sudakov Form Factors
Marvin Schnubel, Jakob Schoenleber, Robert Szafron
Individual multi-loop diagrams for the massive Sudakov form factor contain an infinite tower of ultra-collinear momentum regions. We show that, for the on-shell form factor in QCD,…
A Linear Collider Vision for the Future of Particle Physics
H. Abramowicz, E. Adli, F. Alharthi +446
In this paper we review the physics opportunities at linear colliders with a special focus on high centre-of-mass energies and beam polarisation, take a fresh look at the…
EFT approach to the endpoint of muon decay-in-orbit
Duarte Fontes, Robert Szafron
As upcoming experiments aim to probe muon conversion with unprecedented precision, equally precise theoretical predictions are crucial to maximize discovery potential. This applies…
QED corrections to bound-muon decays from an effective-field-theory framework
Duarte Fontes, Robert Szafron
Bound-muon decays are a powerful probe of new physics, making precise theoretical predictions for their spectra essential. While QED corrections significantly affect the shape of t…
ECFA Higgs, electroweak, and top Factory Study
H. Abidi, J. A. Aguilar-Saavedra, S. Airen +373
The ECFA Higgs, electroweak, and top Factory Study ran between 2021 and 2025 as a broad effort across the experimental and theoretical particle physics communities, bringing togeth…