论文标题
自我互动中微子：解决哈勃张力与实验限制的解决方案
Self-interacting neutrinos: solution to Hubble tension versus experimental constraints
论文作者
论文摘要
已经提出了标准模型中微子之间的异国情调自我互动是从不同观察结果推断出的宇宙膨胀速率H0张力的潜在原因。我们使用Electroweak Precision可观察物，稀有的介子衰减和中微子双 - \ {beta}衰减来限制该建议。与以前的作品相反，我们强调了在具有完整标准模型仪表不变的框架中进行这项研究的重要性。我们首先通过使用相关的一组标准模型效果理论操作员来实现此目标，并随后考虑在反向远见模型中考虑紫外线完成。我们发现，普遍限制了中微子自我相互作用的所有口味的情况，在这种情况下不利于对H0问题的潜在解决方案。仅在tau中微子之间进行自我互动的情况是最少的约束，并且有可能与解决H0问题的解决方案一致。
Exotic self-interactions among the Standard-Model neutrinos have been proposed as a potential reason behind the tension in the expansion rate, H0, of the universe inferred from different observations. We constrain this proposal using electroweak precision observables, rare meson decays, and neutrinoless double-\{beta} decay. In contrast to previous works, we emphasize the importance of carrying out this study in a framework with full Standard-Model gauge invariance. We implement this first by working with a relevant set of Standard- Model-Effective-Field-Theory operators and subsequently by considering a UV completion in the inverse See-Saw model. We find that the scenario in which all flavors of neutrinos self-interact universally is strongly constrained, disfavoring a potential solution to the H0 problem in this case. The scenario with self-interactions only among tau neutrinos is the least constrained and can potentially be consistent with a solution to the H0 problem.
