کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9855082 1527864 2005 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Four-loop renormalization of QCD: full set of renormalization constants and anomalous dimensions
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه ریاضیات فیزیک ریاضی
پیش نمایش صفحه اول مقاله
Four-loop renormalization of QCD: full set of renormalization constants and anomalous dimensions
چکیده انگلیسی
The anomalous dimensions of the gluon and ghost fields as well as those of the ghost-ghost-gluon and quark-quark-gluon vertexes are analytically computed at four loops in pQCD. Taken together with already available anomalous dimensions of the coupling constant, the quark field and the mass the results lead to complete knowledge of all renormalization constant entering into the renormalization of the QCD Lagrangian at the four-loop level. As a by-product we get scale and scheme invariant gluon and ghost propagators at NNNLO. Using a theorem due to Dudal, Verschelde and Sorella, we also construct the four-loop anomalous dimension of the “gluon mass operator”, A2, in the Landau gauge.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Physics B - Volume 710, Issues 1–2, 21 March 2005, Pages 499-510
نویسندگان
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