论文标题
在CERN上使用NA64实验搜索新的B-L Z'Gauge玻色子
Search for a New B-L Z' Gauge Boson with the NA64 Experiment at CERN
论文作者
论文摘要
搜索与KEV-GEV质量范围(UN)破裂的B-L对称性相关的新的$ Z'Uguge Boson是首次使用Cern SPS的Na64实验中的缺失能量技术进行。从2016 - 2021期间收集的目标的3.22E11电子对数据的分析中未发现信号事件。这允许在$ z'-e $耦合强度上得出新的约束,与从中微子 - 电子散射数据中获得的质量相比,$ 0.3 <m_ {z'} <100 $ meV更加严格。
A search for a new $Z'$ gauge boson associated with (un)broken B-L symmetry in the keV-GeV mass range is carried out for the first time using the missing-energy technique in the NA64 experiment at the CERN SPS. From the analysis of the data with 3.22e11 electrons on target collected during 2016-2021 runs no signal events were found. This allows to derive new constraints on the $Z'-e$ coupling strength, which for the mass range $0.3 < m_{Z'} < 100$ MeV are more stringent compared to those obtained from the neutrino-electron scattering data.