Displaced heavy neutral lepton from new Higgs doublet

Abstract Heavy neutral leptons N are introduced to explain the tiny neutrino masses via the seesaw mechanism. For proper small mixing parameter $$V_{\ell N},$$ V ℓ N , the heavy neutral leptons N become long-lived, which leads to the displaced vertex signature at colliders. In this paper, we conside...

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Bibliographic Details
Main Authors: Fa-Xin Yang, Feng-Lan Shao, Zhi-Long Han, Yi Jin, Honglei Li
Format: Article
Language:English
Published: SpringerOpen 2025-04-01
Series:European Physical Journal C: Particles and Fields
Online Access:https://doi.org/10.1140/epjc/s10052-025-14125-w
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