Speaker
Christoph Gnendiger
(PSI)
Description
In this talk, we review recent developments of the four-dimensional helicity scheme (FDH) in higher-order calculations, mainly focusing on the consistent treatment of $\gamma_{5}$. We start with distinctive examples and demonstrate that at the one-loop level the recently proposed four-dimensional formulation (FDF) of FDH constitutes a viable and efficient alternative to more traditional approaches. Apart from this, we provide a comprehensive definition of an anticommuting $\gamma_{5}$ in FDH and discuss when it is convenient to use it in FDH multi-loop calculations.
Primary authors
Adrian Signer
(PSI/UZH)
Christoph Gnendiger
(PSI)
