Authors: Paulo A Rottmann Laura Reina
Publish Date: 2011/09/07
Volume: 2011, Issue: 9, Pages: 33-
Abstract
We study the applicability of the ZSum approach to multiloop calculations with massive particles in perturbative quantum field theory We systematically analyze the case of oneloop scalar integrals which represent the building blocks of any higherloop calculation We focus in particular on triangle oneloop integrals and identify strengths and limitations of the ZSum approach extending our results to the case of oneloop box integrals when appropriate We conclude with the calculation of a specific physical example the calculation of heavyflavor corrections to deepinelasticscattering structure functions
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