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arXiv · hep-ph/0109246

Comparison of Phase Space Slicing and Dipole Subtraction Methods for gamma^* -> Q Qbar

Tim Oliver Eynck·Eric Laenen·Lukas Phaf·Stefan Weinzierl
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Abstract

We compare the phase space slicing and dipole subtraction methods in the computation of the inclusive and differential next-to-leading order cross sections for heavy quark production in the simple process gamma^* -> Q Qbar. For the phase space slicing method we study the effects of improvement terms that remove restrictions on the slicing parameter s_min. For the dipole method our comparison is a first check on some of its counterterms involving massive quarks, derived recently. In our comparison we address issues such as numerical accuracy and efficiency.

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Tim Oliver Eynck, Eric Laenen, Lukas Phaf, Stefan Weinzierl. 2001-10-14. Comparison of Phase Space Slicing and Dipole Subtraction Methods for gamma^* -> Q Qbar. https://doi.org/10.1007/s100520100868

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