2 papers
hep-ph2026
Topological observables and domain wall tension from finite temperature chiral perturbation theory
Zhen-Yan Lu, Quan Tang, Shu-Peng Wang +3
Within the framework of SU(2) chiral perturbation theory, we derive the general solution of the QCD -vacuum for an arbitrary vacuum phase, explicitly incorporating isospin-break…
hep-ph2025
New axion contribution to the two-photon decays of neutral pions
Zhen-Yan Lu, Yang Huang, Ji-Gui Cheng +2
The presence of axions introduces new diagrams at one-loop order to the two-photon decays of the neutral pion through axion-pion mixing. In this work, we calculate this correction,…