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SeparateUV

SeparateUV[expr]
gives the limiting behavior of expr as and separates the UV divergent parts of Passarino-Veltman functions wrapping them with UVDiv for numerical evaluation.

Details and OptionsDetails and Options

ExamplesExamplesopen allclose all

Basic Examples  (3)Basic Examples  (3)

The scalar Passarino-Veltman function has a pole at . Apply SeparateUV to explictly extract finite polynomials of UV origin arising from the multiplication of terms:

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Evaluate numerically with the COLLIER library:

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Terms higher order in are dropped:

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