QCD perturbative expansion fore+e−→hadrons
نویسندگان
چکیده
منابع مشابه
On the QCD perturbative expansion for e+e− → hadrons
We study the perturbative QCD series for the hadronic width of the Z boson. We sum a class of large “π2 terms” and reorganize the series so as to minimize “renormalon” effects. We also consider the renormalization schemescale ambiguity of the perturbative results. We find that, with three nontrivial known terms in the perturbative expansion, the treatment of the π2 terms is quite important, whi...
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ژورنال
عنوان ژورنال: Physical Review D
سال: 1996
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.54.4566