Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states
Abstract 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 $$e^{-}p \rightar...
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| Format: | Article |
| Language: | English |
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SpringerOpen
2025-06-01
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| Series: | European Physical Journal C: Particles and Fields |
| Online Access: | https://doi.org/10.1140/epjc/s10052-025-14400-w |
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| _version_ | 1849769398433218560 |
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| author | Jie-Fen Shen Yan-Ju Zhang Lin Han |
| author_facet | Jie-Fen Shen Yan-Ju Zhang Lin Han |
| author_sort | Jie-Fen Shen |
| collection | DOAJ |
| description | Abstract Within the framework of the phenomenological type-I seesaw mechanism, heavy singlet Majorana neutrinos are introduced to explain the origin of neutrino masses. We propose a novel search strategy for these heavy Majorana neutrinos through the lepton-number-violating process $$e^{-}p \rightarrow jN\rightarrow j(\mu ^{+}W^{-})$$ e - p → j N → j ( μ + W - ) at the Future Circular electron-hadron Collider (FCC-eh), which would utilize a 60 GeV electron beam colliding with a 50 TeV proton beam. Focusing on the decay mode $$N\rightarrow \mu ^{+}W^{-}\rightarrow \mu ^{+}J$$ N → μ + W - → μ + J , where J denotes a fat-jet from the hadronic decays of a highly boosted W boson, we investigate the discovery potential of this signature. By performing a detailed signal-to-background analysis and detector simulations, we present $$2\sigma $$ 2 σ exclusion limits and $$5\sigma $$ 5 σ discovery reaches in terms of parameter space regions. |
| format | Article |
| id | doaj-art-e1503db36c5b4ef49509609932e61562 |
| institution | DOAJ |
| issn | 1434-6052 |
| language | English |
| publishDate | 2025-06-01 |
| publisher | SpringerOpen |
| record_format | Article |
| series | European Physical Journal C: Particles and Fields |
| spelling | doaj-art-e1503db36c5b4ef49509609932e615622025-08-20T03:03:25ZengSpringerOpenEuropean Physical Journal C: Particles and Fields1434-60522025-06-018561710.1140/epjc/s10052-025-14400-wSearching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final statesJie-Fen Shen0Yan-Ju Zhang1Lin Han2School of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversitySchool of Biomedical Engineering, Xinxiang Medical UniversityAbstract Within the framework of the phenomenological type-I seesaw mechanism, heavy singlet Majorana neutrinos are introduced to explain the origin of neutrino masses. We propose a novel search strategy for these heavy Majorana neutrinos through the lepton-number-violating process $$e^{-}p \rightarrow jN\rightarrow j(\mu ^{+}W^{-})$$ e - p → j N → j ( μ + W - ) at the Future Circular electron-hadron Collider (FCC-eh), which would utilize a 60 GeV electron beam colliding with a 50 TeV proton beam. Focusing on the decay mode $$N\rightarrow \mu ^{+}W^{-}\rightarrow \mu ^{+}J$$ N → μ + W - → μ + J , where J denotes a fat-jet from the hadronic decays of a highly boosted W boson, we investigate the discovery potential of this signature. By performing a detailed signal-to-background analysis and detector simulations, we present $$2\sigma $$ 2 σ exclusion limits and $$5\sigma $$ 5 σ discovery reaches in terms of parameter space regions.https://doi.org/10.1140/epjc/s10052-025-14400-w |
| spellingShingle | Jie-Fen Shen Yan-Ju Zhang Lin Han Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states European Physical Journal C: Particles and Fields |
| title | Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states |
| title_full | Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states |
| title_fullStr | Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states |
| title_full_unstemmed | Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states |
| title_short | Searching for heavy majorana neutrinos at the FCC-eh via lepton-number-violating and fat-jet final states |
| title_sort | searching for heavy majorana neutrinos at the fcc eh via lepton number violating and fat jet final states |
| url | https://doi.org/10.1140/epjc/s10052-025-14400-w |
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