Renormalization scale-fixing for complex scattering amplitudes
نویسندگان
چکیده
منابع مشابه
Renormalization Scale-Fixing for Complex Scattering Amplitudes
We show how to fix the renormalization scale for hard-scattering exclusive processes such as deeply virtual meson electroproduction by applying the BLM prescription to the imaginary part of the scattering amplitude and employing a fixed-t dispersion relation to obtain the scale-fixed real part. In this way we resolve the ambiguity in BLM renormalization scale-setting for complex scattering ampl...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 2006
ISSN: 1434-6044,1434-6052
DOI: 10.1140/epjc/s2006-02520-0