Details

Autor(en) / Beteiligte

• Li, Peiran
• Liu, Zhen
• Lyu, Kun-Feng

Titel

Heavy neutral leptons at muon colliders

Ist Teil von

• The journal of high energy physics, 2023-03, Vol.2023 (3), p.231-32, Article 231

Ort / Verlag

Berlin/Heidelberg: Springer Berlin Heidelberg

Erscheinungsjahr

2023

Quelle

EZB-FREE-00999 freely available EZB journals

Beschreibungen/Notizen

• A bstract 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 ℓ -flavor U ℓ . In this work, we focus on the regime m N > O (100) GeV and study the projected sensitivities on the | U ℓ | 2 − m N plane with the full-reconstructable HNL decay into a hadronic W and a charged lepton. The projected reach in |U ℓ | 2 leads to the best sensitivities in the TeV realm.