强相互作用中CP破坏的缺失:真空阻遏轴子
Absence of CP Violation in the Strong Interaction: Vacuum thwarts Axion
AI总结:
本文利用格点QCD新进展研究θ项为何未导致强CP破坏,指出真空行为阻遏了轴子机制的必要性。
摘要:
量子色动力学(QCD)允许在作用量中存在一个θ项,该θ项可能产生非平凡相位并破坏CP对称性。这本质上是一个真空如何对θ项作出响应的问题。在本次报告中,我将利用格点场论的新进展来探讨这一问题。并将整体解决方案与轴子“解决方案”进行对比。
英文摘要:
QCD admits a contribution to the action, the $θ$ term, which potentially gives rise to nontrivial phases and violates CP. This is essentially a question of how the vacuum reacts to the $θ$ term. In this talk I will address the problem using new developments on the lattice. The overall solution is contrasted with the axion `solution'.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。