Indico has been updated to v3.3. See our blog post for details on this release. (OTG0146394)

May 16 – 19, 2023
Texas A&M University
US/Central timezone

Heavy neutral leptons at muon colliders

May 17, 2023, 12:15 PM
Hawking Auditorium (Texas A&M University)

Hawking Auditorium

Texas A&M University


Zhen Liu (University of Minnesota (US))


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.

Primary author

Zhen Liu (University of Minnesota (US))

Presentation materials