AI 中文总结
该研究首次利用公开中微子数据全局分析,对中微子的N-自然性塔进行实验搜索,给出参数空间(r,N)排除极限,在马约拉纳中微子情况下排除了N≤10^4且r≥0.1的暗区,排除了特定规范和引力统一情景。
AI 中文摘要
我们首次使用公开可用的中微子数据进行全局分析,对中微子的N-自然性塔进行实验搜索。作为层次问题的潜在解决方案,N-自然性模型在N个暗区中采用变化的希格斯质量参数,并在参数r中编码暗区位置所需的微调。我们报告了参数空间(r,N)的排除极限,包括正常和反转排序,以及中微子是马约拉纳或狄拉克的情况。对于马约拉纳中微子,我们可以排除N≤10^4个r≥0.1的暗区。这尤其令人兴奋,因为它表明在M_GUT附近的规范和引力统一,这是N=10^4且无微调的N-自然性框架的基准情景,被中微子实验排除。
英文摘要
We present the first experimental search for the $N$-naturalness tower of neutrinos using a global analysis of publicly available neutrino data. As a potential solution to the hierarchy problem, the $N$-naturalness model employs a varying Higgs mass parameter among $N$ dark sectors and encodes the required fine-tuning of the placement of the sectors in a parameter $r$. We report exclusion limits on the parameter space ($r$, $N$), for normal and inverted ordering and in case the neutrino is Majorana or Dirac. In the case of a Majorana neutrino, we can rule out $N\leq 10^4$ sectors with $r\geq 0.1$. This is particularly exciting as it shows that a gauge and gravitational unification around $M_{GUT}$, which is a benchmark scenario of the $N$-naturalness framework with $N=10^4$ without fine-tuning, is ruled out by neutrino experiments.