Chiral Symmetry Breaking and Pion Decay in a Magnetic Field
read the original abstract
The pattern of chiral symmetry breaking is exploited to compute vector and axial-vector pion matrix elements in a uniform magnetic field. Our results are model independent, and thereby constitute low-energy theorems that must be obeyed by QCD in external magnetic fields. Chiral perturbation theory and lattice QCD results are compared, for which there is some tension. As an application, the matrix elements are utilized to compute pion decay rates in a magnetic field.
This paper has not been read by Pith yet.
Forward citations
Cited by 3 Pith papers
-
Meson Octet in a Uniform Magnetic Field
Next-to-leading order chiral perturbation theory yields renormalized magnetic masses and decay constants for the meson octet, with neutral pion mass decreasing, neutral kaon mass unchanged, charged meson masses modifi...
-
Pion Weak Decay in a Magnetic Field
Chiral perturbation theory predicts pion decay widths in magnetic fields that match lattice QCD at large field strengths but differ at weak fields primarily due to variations in the pion decay constant.
-
Chiral Properties of $(2\!+\!1)$-Flavor QCD in Magnetic Fields at Zero Temperature
Continuum-extrapolated lattice simulations show monotonic magnetic catalysis in chiral condensates, non-monotonic charged-meson mass response, and valence-quark dominance at zero temperature up to eB ≈ 1.2 GeV².
discussion (0)
Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.