| Article | |
| Report number | arXiv:2301.07117 |
| Title | Heavy neutral leptons at muon colliders |
| Related title | Heavy Neutral Leptons at Muon Colliders |
| Author(s) | Li, Peiran (Minnesota U.) ; Liu, Zhen (Minnesota U.) ; Lyu, Kun-Feng (Minnesota U.) |
| Publication | 2023 |
| Imprint | 2023-01-17 |
| Number of pages | 32 |
| In: | JHEP 2303 (2023) 231 |
| DOI | 10.1007/JHEP03(2023)231 (publication) |
| Subject category | hep-ph ; Particle Physics - Phenomenology |
| Study | IMCC |
| Abstract | The future high-energy muon colliders, featuring both high energy and low background, could play a critical role in our searches for new physics. The smallness of neutrino mass is a puzzle of particle physics. Broad classes of solutions to the neutrino puzzles can be best tested by seeking the partners of SM light neutrinos, dubbed as heavy neutral leptons (HNLs), at muon colliders. We can parametrize HNLs in terms of the mass $m_N$ and the mixing angle with $\ell$-flavor $U_\ell$. In this work, we focus on the regime $m_N > O(100)$ GeV and study the projected sensitivities on the $|U_\ell|^2 - m_N$ plane with the full-reconstructable HNL decay into a hadronic $W$ and a charged lepton. The projected reach in $|U_\ell|^2$ leads to the best sensitivities in the TeV realm. |
| Copyright/License | publication: © 2023-2024 The Authors (License: CC-BY-4.0) preprint: (License: CC BY 4.0) |
Corresponding record in: Inspire
Record created 2024-03-09, last modified 2024-03-14
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