论文标题
提议以高精度分支比率高精度分支比率的提议，使其平均寿命
Proposal to measure with high precision branching ratio of direct pion decay into positron and pion mean life
论文作者
论文摘要
实验测量将斜杆直接衰减到正电子的概率可以搜索超出标准模型以外的相互作用：测试有关带电电流的普遍性的假设，搜索新的伪量表相互作用。提出和分析了基于塑料闪烁体和硅光层面的设置，用于测量和分析衰减正电子能量的情况下测量锥形和若子能量损耗。结果表明，测量直接茶衰减到正电子的分支比的准确性可以提高四倍。乳头寿命仅用于衰减液体成鼻孔。第一次，该项目提议在直接衰减液体中测量乳胎的寿命，其精度高于7 ppm。
Experimental measurement of the probability of direct decay of a pion into a positron allows searching for interactions beyond the Standard Model: test of the hypothesis about the universality of the charged current,search for new Pseudo-scalar Interactions. A setup based on plastic scintillators and silicon photomultipliers for measuring pion and muon energy losses without measuring the decay positron energy is proposed and analysed. It is shown that the accuracy of measuring the branching ratio of direct pion decay into positron can be improved fourfold. The pion lifetime measured only for decay a pion into a muon.For the first time, a project proposed to measure the lifetime of a pion during direct decay pion into positron with an accuracy of better than 7 ppm.
