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Axion-Like Particles at Future Colliders

Bauer, Martin; Heiles, Mathias; Neubert, Matthias; Thamm, Andrea

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Authors

Mathias Heiles

Matthias Neubert

Andrea Thamm



Abstract

Axion-like particles (ALPs) are pseudo Nambu–Goldstone bosons of spontaneously broken global symmetries in high-energy extensions of the Standard Model (SM). This makes them a prime target for future experiments aiming to discover new physics which addresses some of the open questions of the SM. While future high-precision experiments can discover ALPs with masses well below the GeV scale, heavier ALPs can be searched for at future high-energy lepton and hadron colliders. We discuss the reach of the different proposed colliders, focusing on resonant ALP production, ALP production in the decay of heavy SM resonances, and associate ALP production with photons, Z bosons or Higgs bosons. We consider the leading effective operators mediating interactions between the ALP and SM particles and discuss search strategies for ALPs decaying promptly as well as ALPs with delayed decays. Projections for the high-luminosity run of the LHC and its high-energy upgrade, CLIC, the future e+e− ring-colliders CEPC and FCC-ee, the future pp colliders SPPC and FCC-hh, and for the MATHUSLA surface array are presented. We further discuss the constraining power of future measurements of electroweak precision parameters on the relevant ALP couplings.

Citation

Bauer, M., Heiles, M., Neubert, M., & Thamm, A. (2019). Axion-Like Particles at Future Colliders. The European Physical Journal C, 79, Article 74. https://doi.org/10.1140/epjc/s10052-019-6587-9

Journal Article Type Article
Acceptance Date Jan 10, 2019
Online Publication Date Jan 28, 2019
Publication Date Jan 28, 2019
Deposit Date Nov 27, 2018
Publicly Available Date Jan 31, 2019
Journal European Physical Journal C: Particles and Fields
Print ISSN 1434-6044
Electronic ISSN 1434-6052
Publisher SpringerOpen
Peer Reviewed Peer Reviewed
Volume 79
Article Number 74
DOI https://doi.org/10.1140/epjc/s10052-019-6587-9
Public URL https://durham-repository.worktribe.com/output/1313308

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http://creativecommons.org/licenses/by/4.0/

Copyright Statement
© The Author(s) 2019.
This article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made.






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