Speaker
Markus Löchner
(University of Zurich)
Description
NNLO calculations in QCD require an analytic understanding of the infrared singular structure involving up to two unresolved partons. Up to now this was achieved only for unpolarized matrix elements. We report on the progress on the calculation of splitting amplitudes arising in longitudinally polarised QCD matrix elements at NNLO in the Larin $\gamma_5$ scheme. They are derived from DIS-like processes and verified in matrix elements of higher multiplicity. Our results will enable the calculation of NNLO corrections to longitudinal spin asymmetries in polarized collider processes.
Primary author
Markus Löchner
(University of Zurich)
