论文标题
通过彗星实验搜索MUON到电子转换
Search for muon-to-electron conversion with the COMET experiment
论文作者
论文摘要
预计，充电的Lepton风味违规将是揭示超出标准模型的物理的最强大工具之一。彗星实验旨在寻找兆族中性s的相干过渡到核场中的电子。如果发现了新物理学，从未观察到，也可以，也可以，也可以，也可以，也可以，也可以，也可以是，也可以，如果发现新物理学的证据。该过程的实验敏感性定义为在未来十年内，预计MUON与电子转化率与总肌电捕获率的比率将显着提高100至10,000。彗星实验将在J-Parc进行，分别在$ 10^{ - 15} $和$ 10^{ - 17} $的单一事件敏感性中，分别在I阶段I和第II期中。彗星实验的雄心勃勃的目标是通过意识到高质量的脉冲梁和前所未有的强大的MUON源，以及可以耐受严重辐射环境的出色探测器设备。新的光束线，超导磁铁，探测器和电子设备的构建正在朝着即将进行的第相实验进行。我们介绍了实验方法，灵敏度和背景以及最近的地位和前景。
Charged Lepton Flavor Violation is expected to be one of the most powerful tools to reveal physics beyond the Standard Model. The COMET experiment aims to search for the neutrinoless coherent transition of a muon into an electron in the field of a nucleus. Muon-to-electron conversion has never been observed, and can be, and would be, clear evidence of new physics if discovered. The experimental sensitivity of this process, defined as the ratio of the muon-to-electron conversion rate to the total muon capture rate, is expected to be significantly improved by a factor of 100 to 10,000 in the coming decade. The COMET experiment will take place at J-PARC with single event sensitivities of the orders of $10^{-15}$ and $10^{-17}$ in Phase-I and Phase-II, respectively. The ambitious goal of the COMET experiment is achieved by realizing a high-quality pulsed beam and an unprecedentedly powerful muon source together with an excellent detector apparatus that can tolerate a severe radiation environment. The construction of a new beam line, superconducting magnets, detectors and electronics is in progress towards the forthcoming Phase-I experiment. We present the experimental methods, sensitivity and backgrounds along with recent status and prospects.
