INFRARED RENORMALON EFFECTS ON LIGHT MESONS ELECTROMAGNETIC TRANSITION FORM FACTOR FMγ*(Q2, ω)
作者： YEGANA V. MAMEDOVA
DOI: 10.1142/S0217751X03013806
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摘要: The light pseudoscalar π0, η and η′ mesons electromagnetic transition γ* + → M form factors FMγ*(Q2,ω) are calculated, applying the perturbative QCD factorization formula frozen coupling constant approximation. In computations O(αS) order expression for mesons' infrared renormalon corrected distribution amplitudes used. case of mesons, SUf(3) ordinary octet-singlet mixing scheme is utilized. Comparisons made with results obtained, employing γ factors.
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