论文标题
中性锥子的磁极化性的断开贡献
Disconnected contributions to the magnetic polarisability of the neutral pion
论文作者
论文摘要
已经使用晶状体QCD中的背景场方法计算了中性向中性向中性斜率的磁极性。这些早期结果并未考虑由背景磁场中电荷对称性破坏的断开环收缩的影响。手性扰动理论的最新工作表明，这些夸克自然的收缩为磁性极化性提供了领先的环阶贡献。提出了对背景磁场中这些收缩的首次研究。
The magnetic polarisability of the neutral pion has been calculated using the background field method in lattice QCD. These early results do not consider the effect of the disconnected loop contractions arising from the breaking of charge symmetry in a background magnetic field. Recent work in chiral perturbation theory has shown that these quark-self-annihilation contractions provide the leading loop-order contributions to the magnetic polarisability. A first investigation of these contractions in a background magnetic field is presented.
