Analytic coupling and Sudakov effects in exclusive processes: pion and $\gamma ^*\gamma \to \pi ^0$ form factors
نویسندگان
چکیده
منابع مشابه
Analytic coupling and Sudakov effects in exclusive processes : pion and γ ∗ γ → π 0 form factors
We develop and discuss in technical detail an infrared-finite factorization and optimized renormalization scheme for calculating exclusive processes, which enables the inclusion of transverse degrees of freedom without entailing suppression of calculated observables, like form factors. This is achieved by employing an analytic, i.e., infrared stable, running strong coupling αs(Q) which removes ...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2000
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100520000510