On the running electromagnetic coupling constant at $M_Z$
نویسندگان
چکیده
منابع مشابه
On the running electromagnetic coupling constant at MZ
We present a discussion on how to define the running electromagnetic coupling constant at MZ or some other intermediate scale as e.g. mΥ. We argue that a natural definition consistent with general requirements of the renormalization group should be based on Euclidean values of the momentum of the photon propagator as the appropriate scale. We demonstrate in an explicit example of evaluating the...
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ژورنال
عنوان ژورنال: The European Physical Journal C
سال: 1999
ISSN: 1434-6044,1434-6052
DOI: 10.1007/s100530050498