Calculation of massive 2-loop operator matrix elements with outer gluon lines
نویسندگان
چکیده
منابع مشابه
Calculation of Massive 2–Loop Operator Matrix Elements with Outer Gluon Lines
Massive on–shell operator matrix elements and self-energy diagrams with outer gluon lines are calculated analytically at O(αs), using Mellin–Barnes integrals and representations through generalized hypergeometric functions. This method allows for a direct evaluation without decomposing the integrals using the integration-by-parts method.
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ژورنال
عنوان ژورنال: Physics Letters B
سال: 2007
ISSN: 0370-2693
DOI: 10.1016/j.physletb.2007.02.059