Echoes of Nucleon Decay from Long-Lived Particles
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arXiv
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| Main Authors: | , , , |
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| Format: | Preprint |
| Published: |
2026
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| _version_ | 1866916033015578624 |
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| author | Adolf, Patrick Hati, Chandan Hirsch, Martin Takhistov, Volodymyr |
| author_facet | Adolf, Patrick Hati, Chandan Hirsch, Martin Takhistov, Volodymyr |
| contents | Nucleon decay searches provide uniquely sensitive probes of baryon number violation and physics beyond the Standard Model. We propose a new class of nucleon decay observables involving long-lived particles (LLPs), characterized by spatially separated but temporally correlated "echo" vertices not captured by conventional prompt searches. Focusing on vector LLPs, we construct effective operators and ultraviolet realizations, and show that Super-Kamiokande, Hyper-Kamiokande and JUNO can achieve geometric acceptances approaching 80% over a broad range of LLP decay lengths. Echo signatures could in principle arise from any visibly decaying LLP. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2605_21583 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Echoes of Nucleon Decay from Long-Lived Particles Adolf, Patrick Hati, Chandan Hirsch, Martin Takhistov, Volodymyr High Energy Physics - Phenomenology High Energy Physics - Experiment Nucleon decay searches provide uniquely sensitive probes of baryon number violation and physics beyond the Standard Model. We propose a new class of nucleon decay observables involving long-lived particles (LLPs), characterized by spatially separated but temporally correlated "echo" vertices not captured by conventional prompt searches. Focusing on vector LLPs, we construct effective operators and ultraviolet realizations, and show that Super-Kamiokande, Hyper-Kamiokande and JUNO can achieve geometric acceptances approaching 80% over a broad range of LLP decay lengths. Echo signatures could in principle arise from any visibly decaying LLP. |
| title | Echoes of Nucleon Decay from Long-Lived Particles |
| topic | High Energy Physics - Phenomenology High Energy Physics - Experiment |
| url | https://arxiv.org/abs/2605.21583 |