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- W4387218897 abstract "We study the feasibility to observe sterile neutrino at the high energy colliders, using direct production channels $e^+e^-tobar{nu}_e N, e^-gamma to NW^-$ and indirect production channels through heavy meson/baryon and Higgs decay. We thus cover a mass window that is between what can be studied in heavy hadron factories and high energy colliders. For $e^+e^-tobar{nu}_e N$ channel, the sensitivity of active-sterile mixing $|U_{eN}|^2$ in the lower mass end (0.3$sim 2$ GeV) could be $10^{-6}$ at the SuperKEKB under its operation with designed luminosity, the sensitivity for hundreds GeV region can be further extended to $10^{-7}$ at the CEPC and the ILC. We also explore the heavy sterile neutrino production through $e^-gamma to NW^-$ channel at the ep collider, the mixing $|U_{eN}|^2$ is estimated to reach a sensitivity of $10^{-4}$ at the LHeC if $m_N$ to be electroweak energy mass scale, which can shed light on sterile neutrino searching at this mass region. For heavy hadron decay, the lepton-number-violating process in $|Delta L|=2$ decays of $Lambda_c, Xi_{c}, Xi_{cc}$ and $Lambda_b$ are explored via an intermediate on-shell Majorana neutrino in GeV scale. The branching fractions and the lower-limit on $|U_{ell N}|^2$ versus $m_N$ are given. The $Higgs to Wmumupi$ channel is also considered, which is sensitive at lower mass scale." @default.
- W4387218897 created "2023-10-01" @default.
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- W4387218897 date "2023-09-28" @default.
- W4387218897 modified "2023-10-01" @default.
- W4387218897 title "Hunting for sterile neutrino with collider signatures" @default.
- W4387218897 doi "https://doi.org/10.48550/arxiv.2309.16233" @default.
- W4387218897 hasPublicationYear "2023" @default.
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