论文标题
具有高强度脉冲亮束的Muonium中高精细结构的新精确光谱
New precise spectroscopy of the hyperfine structure in muonium with a high-intensity pulsed muon beam
论文作者
论文摘要
由阳性和电子组成的类似氢原子称为Muonium。它是一个近乎理想的两体系统，用于对结合状态理论和基本对称性的精确测试。博物馆的合作使用高强度的脉冲MUON束和高速率的正电子计数器对J-PARC的Muonium地面超精细结构进行了新的精度测量。在接近零的磁场上成功观察到了超细转变的共振，并以0.9 ppm的相对精度获得了$ν_ {\ text {hfs}} $ = 4.463302（4）GHz的Muonium Hyperfine结构间隔。结果与在洛斯阿拉莫斯国家实验室和当前理论计算的先前获得的结果一致。我们提出了Muonium微波光谱的证明，以实现最高精度。
A hydrogen-like atom consisting of a positive muon and an electron is known as muonium. It is a near-ideal two-body system for a precision test of bound-state theory and fundamental symmetries. The MuSEUM collaboration performed a new precision measurement of the muonium ground-state hyperfine structure at J-PARC using a high-intensity pulsed muon beam and a high-rate capable positron counter. The resonance of hyperfine transition was successfully observed at a near-zero magnetic field, and the muonium hyperfine structure interval of $ν_{\text{HFS}}$ = 4.463302(4) GHz was obtained with a relative precision of 0.9 ppm. The result was consistent with the previous ones obtained at Los Alamos National Laboratory and the current theoretical calculation. We present a demonstration of the microwave spectroscopy of muonium for future experiments to achieve the highest precision.
