Article ID Journal Published Year Pages File Type
8197374 Physics Letters B 2007 6 Pages PDF
Abstract
Massive on-shell operator matrix elements and self-energy diagrams with outer gluon lines are calculated analytically at O(αs2), 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.
Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
Preview
Calculation of massive 2-loop operator matrix elements with outer gluon lines
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