Higher order corrections to Z–decay∗
نویسنده
چکیده
Recent developments in the field of automatic computation of Feynman diagrams using asymptotic expansions are reviewed. The hadronic decay rate of the Z–boson is taken as an example for their physical application.
منابع مشابه
Complete Corrections of O ( αα s ) to the Decay of the Z Boson into Bottom Quarks
For the vertex corrections to the partial decay rate Γ(Z → bb̄) involving the top quark only the leading terms of order ααs in the 1/Mt expansion are known. In this work we compute the missing next-to-leading corrections. Thus at O(ααs) the complete corrections to the decay of the Z boson into bottom quarks are at hand. PACS numbers: 12.38.Bx, 13.30.Eg, 13.38.Dg, 14.65.Fy
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تاریخ انتشار 1998