论文标题
从相干弹性中微子核散射中的轻单元相互作用的限制因素
Constraints on light singlet fermion interactions from coherent elastic neutrino-nucleus scattering
论文作者
论文摘要
具有质量$M_χ\ Lessim 50 $ MEV的异国情调的单元费$χ$可以通过$ n} {\ Mathcal n} \ rightArrowχ{\ Mathcal n} $ PROCESS生产。由于增强了连贯的增强，它提供了一种独特的方法来研究$χ$与标准模型（SM）扇区的相互作用。基于最通用的尺寸-6有效的拉格朗日，我们就$χ$与SM部门之间的相关相互作用进行了全面研究。从当前和未来的连贯和未来的CONUS实验中，我们获得了偶极子，标量，矢量和张量相互作用的Wilson系数上的上限。对于低于10 MEV的$M_χ$，未来的CONUS数据具有最佳的灵敏度，而对于$m_χ$ 10 MEV $ -50 $ -50 $ MEV，当前和未来的相干界限占主导地位。这些限制与中微子振荡和对撞机搜索的限制是互补的。此外，界限不取决于$χ$的电荷共轭属性，也不取决于$χ$是否是暗物质。
The exotic singlet fermions $χ$, with a mass $m_χ\lesssim 50$ MeV, could be produced at the coherent elastic neutrino-nucleus scattering (CE$ν$NS) experiments through the $ν{\mathcal N} \rightarrow χ{\mathcal N}$ process. Due to the coherent enhancement, it offers a unique way to study how $χ$ interacts with the Standard Model (SM) sector. Based on the most general dimension-6 effective Lagrangian, we perform a comprehensive study on the relevant interaction between $χ$ and the SM sector. From the current and future COHERENT and future CONUS experiments, we obtain the upper bounds on the Wilson coefficients for the dipole, scalar, vector, and tensor interactions. For $m_χ$ below 10 MeV, future CONUS data has the best sensitivity, while for $m_χ$ between 10 MeV$-50$ MeV, the current and future COHERENT bounds dominate. These limits are complementary to those from neutrino oscillation and collider searches. Moreover, the bounds do not depend on the charge conjugation property of $χ$, nor whether $χ$ is dark matter or not.
