Speaker
Description
Heavy Neutral Leptons are popular hypothetical particles, first introduced as a way to explain neutrino oscillations, and since then extensively studied in relation to many other aspects of physics beyond the Standard Model. They also serve as viable targets for direct experimental searches, being effectively described only by HNL mass and mixing with each neutrino flavor. I show the lower theoretical boundary for mixing with a specified flavor in two and three HNLs cases and find the connection of this limit with the effective neutrino mass appearing in neutrinoless double beta decay (and similar expressions for mixing with muon and tau neutrino). I find that existing exclusion regions and their expected expansions in the near future are all described by a certain limit. I call that limit pseudodegenerate and find its relation to the symmetrical limit, already studied in the literature. Based on preprint arXiv:2307.01190.
| Тематическая секция | Физика нейтрино |
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