Nnaturalness 中的中微子质量与现象学
摘要
In this paper, it is shown that Nnaturalness scenarios share the intrinsic mechanism to suppress neutrino masses with other infrared neutrino mass models. In such models like extra-dimensional theories or many species theories, the large number of mixing partners is responsible for the neutrino mass suppression. It is shown how neutrino mass matrices arise in Nnaturalness models and the resulting neutrino mixing is analyzed. The first result is that a totally democratic coupling among the different sectors like in the original models is already ruled out by the fact that neutrinos are not massless. In the case where the sector couplings deviate from the intersector ones a tower of additional neutrino mass eigenstates appears whose difference between the squared masses, \Delta m_{ij}^2, is determined fully by the theory. The resulting phenomenology of such a tower is investigated and the unique signals in neutrino oscillation experiments, neutrino mass measurements, and neutrinoless double beta decay experiments are discussed. This opens the door for terrestrial tests of Nnaturalness whose phenomenology was so far focused on Cosmology.
引用
@article{arxiv.2502.09537,
title = {Explicit and CPU/GPU parallel energy-preserving schemes for the Klein-Gordon-Schr\"odinger equations},
author = {Xuelong Gu and Yushun Wang and Ziyu Wu and Jiaquan Gao and Wenjun Cai},
journal= {arXiv preprint arXiv:2502.09537},
year = {2025}
}