@article{df87e56c0a954634b84febffba4dbfea,
title = "Machine-enhanced CP-asymmetries in the Higgs sector",
abstract = "Improving the sensitivity to CP-violation in the Higgs sector is one of the pillars of the precision Higgs programme at the Large Hadron Collider. We present a simple method that allows CP-sensitive observables to be directly constructed from the output of neural networks. We show that these observables have improved sensitivity to CP-violating effects in the production and decay of the Higgs boson, when compared to the use of traditional angular observables alone. The kinematic correlations identified by the neural networks can be used to design new analyses based on angular observables, with a similar improvement in sensitivity.",
keywords = "CP violation, Higgs physics, Phenomenology",
author = "Akanksha Bhardwaj and Christoph Englert and Robert Hankache and Pilkington, {Andrew D.}",
note = "Funding Information: The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Christoph Englert reports financial support was provided by Science and Technology Facilities Council. Akanksha Bhardwaj reports financial support was provided by Science and Technology Facilities Council. Andrew Pilkington reports financial support was provided by Science and Technology Facilities Council. Christoph Englert reports financial support was provided by Leverhulme Trust. Andrew Pilkington reports financial support was provided by Leverhulme Trust. Andrew Pilkington reports financial support was provided by Royal Society. Robert Hankache reports financial support was provided by Leverhulme Trust. Christoph Englert reports financial support was provided by Durham University. Funding Information: We thank Florian Bernlochner and Andrei Gritsan for useful conversations and insightful comments on early versions of this work. A.B. and C.E. are supported by the STFC under grant ST/T000945/1 . C.E. is supported by the Leverhulme Trust under grant RPG-2021-031 and the IPPP Associateship Scheme. A.D.P is supported by the Royal Society and STFC under grants UF160396 and ST/000925/1 . R.H. and A.D.P are supported by the Leverhulme Trust under grant RPG-2020-004 . The data supporting the findings reported in this paper are openly available from the figshare repository [71] . Publisher Copyright: {\textcopyright} 2022 The Author(s)",
year = "2022",
month = sep,
day = "10",
doi = "10.1016/j.physletb.2022.137246",
language = "English",
volume = "832",
journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",
issn = "0370-2693",
publisher = "Elsevier BV",
}