SOX: Search for sterile neutrinos with Borexino

中微子振荡实验的大多数数据可以用三种活跃中微子味之间的振荡来一致地描述。然而，一些实验发现了偏离三味假设的预测，可能指向无菌中微子的存在。SOX项目致力于寻找这些新的中微子，旨在成为第一个明确验证或反驳无菌中微子作为这些异常原因的实验。因此，将在Borexino探测器附近部署一个强放射性反中微子源，以进行短基线振荡实验。申请人的目标是为这个迷人的项目做出贡献：我们将对源活动的量热测量进行校准，并将通过调查探测器背景和系统学进行数据分析。这两个方面将大大提高无菌中微子搜索的灵敏度。

Most of the data of neutrino oscillation experiments can be consistently described by oscillations between the three active neutrino flavors. However, several experiments have found deviations from the predictions of the three-flavor-scenario that might point to the existence of sterile neutrinos. The SOX project is dedicated to the search for these novel neutrinos, aiming to be the first experiment unambiguously verifying or refuting the existence of sterile neutrinos as cause for these anomalies. Therefore, an intense radioactive antineutrino source will be deployed close to the Borexino detector to perform a short-baseline oscillation experiment. The applicants aim to contribute to this fascinating project: We will perform the calibration for a calorimetric measurement of the source activity and will engage in data analysis by investigating detector backgrounds and systematics. Both aspects will significantly enhance the sensitivity for the sterile neutrino search.