Year: 2025
Type: conference-paper
Abstract: Theoretical descriptions and experimental tests of anomalies are crucial for the development of consistent quantum field theory, wherein anomalies emerge as essential features. The process $\gamma \pi\to \pi\pi$, driven by its abnormal intrinsic parity, appears in the anomalous sector of low-energy quantum chromodynamics (QCD). We briefly review the recent theoretical developments underlying this chiral anomaly, focusing on its extraction based on dispersion relations, lattice QCD, and from the crossed channel $\gamma^* \to 3\pi$.
DOI: 10.22323/1.479.0028
Author: Bai-Long Hoid
Language: English
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: hybrid
OpenAlex ID: W4410368951