Direct contour deformation with arbitrary masses in the loop

Sebastian Becker; Stefan Weinzierl

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Direct contour deformation with arbitrary masses in the loop

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arxiv 1208.4088 v2 pith:JR4HE4ET submitted 2012-08-20 hep-ph

Direct contour deformation with arbitrary masses in the loop

Sebastian Becker , Stefan Weinzierl This is my paper

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keywords loopmethodarbitrarycasedeformationmassesconstructscontour

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We present a method, which constructs a suitable deformation vector in loop momentum space, when the loop integration is done numerically with the help of the subtraction method. The method presented here extends previously discussed techniques from the massless case to the general case of arbitrary masses in the loop.

Direct contour deformation with arbitrary masses in the loop

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