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Dispersive analysis for η→γγ ^⋆

C. Hanhart, A. Kupść, U.-G. Meißner, F. Stollenwerk and A. Wirzba

Eur. Phys. J. C, 73 12 (2013) 2668

DOI: https://doi.org/10.1140/epjc/s10052-013-2668-3

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