https://doi.org/10.1140/epjc/s10052-025-14400-w
Regular Article - Theoretical Physics
Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states
School of Biomedical Engineering, Xinxiang Medical University, 453003, Xinxiang, China
Received:
26
March
2025
Accepted:
1
June
2025
Published online:
30
June
2025
Within the framework of the phenomenological type-I seesaw mechanism, heavy singlet Majorana neutrinos are introduced to explain the origin of neutrino masses. We propose a novel search strategy for these heavy Majorana neutrinos through the lepton-number-violating process 
at the Future Circular electron-hadron Collider (FCC-eh), which would utilize a 60 GeV electron beam colliding with a 50 TeV proton beam. Focusing on the decay mode 
, where J denotes a fat-jet from the hadronic decays of a highly boosted W boson, we investigate the discovery potential of this signature. By performing a detailed signal-to-background analysis and detector simulations, we present 
exclusion limits and 
discovery reaches in terms of parameter space regions.
© The Author(s) 2025
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Funded by SCOAP3.
