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Once more about gauge invariance in ϕ\toγ\pi0\pi0

N. N. Achasov
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Abstract

It is argued that the realization of gauge invariance condition as a consequent of cancellation between the ϕ\toγf0\toγ\pi0\pi0 resonance contribution and a ϕ\toγ\pi0\pi0 background one, suggested in Ref. [1], is misleading.

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N. N. Achasov. 2007-10-21. Once more about gauge invariance in ϕ\toγ\pi0\pi0. https://doi.org/10.1134/s1063778807050080

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