Future Collider Perspectives on Higgs CP Violation
Abstract
The search for new sources of CP violation is a cornerstone of the beyond the Standard Model phenomenology programme at the LHC and beyond. We provide a comprehensive analysis of such searches at a range of future facilities with the aim of informing the currently unfolding future collider roadmap. Focussing on new sources of CP violation specifically in the gauge-Higgs sector, we demonstrate the outstanding potential held by future electron-positron and proton-proton colliders to reveal and identify BSM physics with direct relevance for the observed matter-antimatter asymmetry. In particular, the future colliders will provide an order of magnitude improvement in sensitivity to anomalous CP-violating interactions induced by dimension-six effective field theory operators when compared to the high-luminosity LHC programme.
Cite
@article{arxiv.2511.08359,
title = {Future Collider Perspectives on Higgs CP Violation},
author = {Arun Atwal and Jessica Burridge and António Jacques Costa and Christoph Englert and Sinead Farrington and Jay Nesbitt and Leonor Santos Pereira Trigo and Andrew Pilkington and Aidan Robson and Júlia Cardoso Silva and Sarah Williams and Yuyang Zhang},
journal= {arXiv preprint arXiv:2511.08359},
year = {2025}
}
Comments
22 pages, 6 figures, 6 tables