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The Anomalous Process $\gamma\pi \to \pi\pi$ and its Impact on the $\pi^0$ Transition Form Factor
The process γπ → ππ, in the limit of vanishing photon and pion energies, is determined by the chiral anomaly. This reaction can be investigated experimentally using Primakoff reactions, as currently done at COMPASS. We derive a dispersive representation that allows one to extract the chiral anomaly...
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Lenguaje: | eng |
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2014
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Acceso en línea: | https://dx.doi.org/10.1142/S2010194514603974 http://cds.cern.ch/record/2025906 |