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arXiv · 1911.12657

Two photon transition form factors of neutral pseudoscalar mesons

Minghui Ding·Daniele Binosi·Khépani Raya·Lei Chang·Craig D. Roberts
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Abstract

Starting from the axial vector Ward-Green-Takahashi identity, and the necessity of preserving this identity when attempting to calculate the properties describing pseudoscalar mesons, we describe a Bethe-Salpeter kernel which takes into account the non-Abelian anomaly and therefore is suitable to describe the flavor mixing states $\eta,\eta^\prime$. We then report results for the two photon transition form factors of $\eta,\eta^\prime$, and compare them with existing experimental data.

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Minghui Ding, Daniele Binosi, Khépani Raya, Lei Chang, Craig D. Roberts. 2019-11-28. Two photon transition form factors of neutral pseudoscalar mesons. https://arxiv.org/abs/1911.12657

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