解决中子寿命和暗物质难题的中子振荡
Neutron oscillations for solving neutron lifetime and dark matter puzzles
摘要：
在镜像对称性轻微破缺的镜像物质理论框架下，提出了一个$n-n'$（中子-镜像中子）振荡模型。它解决了中子寿命差异，即，“束”和“瓶”实验测量的中子寿命之间的1%差异。考虑到早期宇宙的演化，确定了$n-n'$质量差约为$2\times 10^{-6}$ eV/c $^2$，$n-n'$混合强度约为$2\times 10^{-5}$ .给出了早期宇宙中镜物质与普通物质密度比如何演化为观测到的暗物质与重子物质密度比约为5.4的图像。重新分析以前的数据和新的实验，可以在当前的技术进行了讨论，并建议测试这个模型。该模型对天体物理学和其他中性粒子的可能振荡的其他后果进行了讨论。
英文摘要：
A model of $n-n'$ (neutron-mirror neutron) oscillations is proposed under the framework of the mirror matter theory with slightly broken mirror symmetry. It resolves the neutron lifetime discrepancy, i.e., the 1% difference in neutron lifetime between measurements from "beam" and "bottle" experiments. In consideration of the early universe evolution, the $n-n'$ mass difference is determined to be about $2\times 10^{-6}$ eV/c$^2$ with the $n-n'$ mixing strength of about $2\times 10^{-5}$. The picture of how the mirror-to-ordinary matter density ratio is evolved in the early universe into the observed dark-to-baryon matter density ratio of about 5.4 is presented. Reanalysis of previous data and new experiments that can be carried out under current technology are discussed and recommended to test this proposed model. Other consequences of the model on astrophysics and possible oscillations of other neutral particles are discussed as well.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
