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Further comment on pion electroproduction and the axial form factor

V. Bernard·N. Kaiser·Ulf-G. Meißner
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Abstract

We show that a recent claim (H.Haberzettl, Phys. Rev. Lett. 85 (2000) 3576) that one cannot extract the nucleon weak axial form factor G_A (t) from charged pion threshold electroproduction is incorrect. Thus previous calculations remain valid and threshold charged pion electroproduction experiments can indeed be used to determine G_A (t), and they should certainly be pursued.

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V. Bernard, N. Kaiser, Ulf-G. Meißner. 2001-01-08. Further comment on pion electroproduction and the axial form factor. https://arxiv.org/abs/hep-ph/0101062

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