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T: Fachverband Teilchenphysik

T 20: QCD (Theorie) 1

T 20.2: Vortrag

Montag, 24. März 2014, 11:15–11:30, P110

QCD factorization of infrared singularities in DRED — •Christoph Gnendiger — Institut für Kern- und Teilchenphysik, TU Dresden

In this work we analyze factorization properties of infrared singularities in massless QCD at two-loop order in different forms of dimensional regularization, including Conventional Dimensional Regularization (CDR) and Dimensional Reduction (DRED).

In CDR it is known that infrared singularities can be predicted by a general and compact formula. We show that in DRED the results are not in agreement with this formula, but with a modified one. We explain the origin of this modification and show how to convert CDR-results into DRED.