Bolton, PD;
Deppisch, FF;
Kulkarni, S;
Majumdar, C;
Pei, W;
(2025)
Exploring the vSMEFT with Missing Energy and Displaced Vertex Signatures at FCC-ee.
In:
Proceedings of Science. The 9th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE2024).
(pp. pp. 1-7).
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Abstract
We study the potential of FCC-ee to probe GeV-scale heavy neutral leptons (HNLs) in Standard Model extensions using the effective field theory (EFT) approach. Focusing on ν SMEFT operators at dimension d≤7 , we study their impact on HNL production and decay at an e+e− collider. For Majorana and Dirac HNLs, sensitivities to the active-sterile mixing and EFT Wilson coefficients are evaluated for monophoton searches and displaced vertex signatures at FCC-ee. Constraints on Wilson coefficients are translated into lower bounds on the new physics scale.
| Type: | Proceedings paper |
|---|---|
| Title: | Exploring the vSMEFT with Missing Energy and Displaced Vertex Signatures at FCC-ee |
| Event: | 9th Symposium on Prospects in the Physics of Discrete Symmetries (DISCRETE2024) |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.22323/1.481.0006 |
| Publisher version: | https://doi.org/10.22323/1.481.0006 |
| Language: | English |
| Additional information: | © Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License (https://creativecommons.org/licenses/by-nc-nd/4.0/). |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/10216907 |
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