论文标题
Muonic原子的核特性研究
Study of nuclear properties with muonic atoms
论文作者
论文摘要
MUON是研究核特性的引人入胜的探测器。可以通过在材料中停止负um族来轻松形成muonic原子。随后将元素捕获，由于其与电子相比，其质量更高，因此在很小的距离处绕核绕核。在这个原子捕获过程中，穆恩在级联下散发出特征X射线至基态。这些X射线的能量揭示了Muonic能级方案，从核电荷半径或其四极力矩等性能中可以提取。尽管几乎所有稳定的元素都已使用MUON检查，但到目前为止，探测高度放射性原子的可能性是不可能的。 MUX实验基于高压氢/氘气电池内的转移反应开发了一项技术，以检查仅微克量可用的靶标。
Muons are a fascinating probe to study nuclear properties. Muonic atoms can easily be formed by stopping negative muons inside a material. The muon is subsequently captured by the nucleus and, due to its much higher mass compared to the electron, orbits the nucleus at very small distances. During this atomic capture process the muon emits characteristic X-rays during its cascade down to the ground state. The energies of these X-rays reveal the muonic energy level scheme, from which properties like the nuclear charge radius or its quadrupole moment can be extracted. While almost all stable elements have been examined using muons, probing highly radioactive atoms has so far not been possible. The muX experiment has developed a technique based on transfer reaction inside a high pressure hydrogen/deuterium gas cell to examine targets available only in microgram quantities.
