Axial Anomaly and Polarized Radiative Decays

Details Axial Anomaly and Polarized Radiative Decays Axial Anomaly and Polarized Radiative Decays

2000-03-06

arxiv.org/abs/hep-ph/0003044v1

Phys.Lett. B478 (2000) 137-145

Physics

High Energy Physics

High Energy Physics - Phenomenology

18 pages, LaTeX, 4 PostScript figures

Scientific paper

10.1016/S0370-2693(00)00286-0

We extend the approach of Dolgov and Zakharov to the axial anomaly to study polarized radiative decays. We analyse the pattern of mass singularity cancellation in the corresponding decay rates. We compare polarized and unpolarized cases. The cancellation of the infrared and collinear singularities is verified to all powers of the lepton mass for the $\pi^+$ and $Z^0$ polarized radiative decays.

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