γ★γ→π0 transition and asymptotics of γ★γ and γ★γ★ transitions of unflavored pseudoscalar mesons

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ژورنال

عنوان ژورنال: Physics Letters B

سال: 1999

ISSN: 0370-2693

DOI: 10.1016/s0370-2693(99)00536-5