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arXiv · 1501.03961

Comments on "Interference phenomena in the $J^{p} = 1/2^-$ - wave in $η$ photoproduction" by A.V. Anisovich et al. [arXiv:1501.02093]

Viacheslav Kuznetsov
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Abstract

The authors of arXiv:1501.02093v1 claimed that " ... narrow structure observed in the excitation function of $γn \to ηn$ can be reproduced fully with a particular interference pattern in the $J^{p} = 1/2^-$ partial wave..." while a narrow structure in Compton scattering off the neutron is "...a stand-alone observation unrelated to the structure observed in $γn \to ηn$...". The source for the second statement may be a simple numerical error. If so, the interpretation of the narrow structure in $γn \to ηn$ as interference effects in the $J^{p} = 1/2^-$-wave and some conclusions from arXiv:1501.02093v1 are questionable.

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Viacheslav Kuznetsov. 2015-01-16. Comments on "Interference phenomena in the $J^{p} = 1/2^-$ - wave in $η$ photoproduction" by A.V. Anisovich et al. [arXiv:1501.02093]. https://arxiv.org/abs/1501.03961

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