Speaker
Mr
Tim Engel
(Paul Scherrer Institut/Universität Zürich)
Description
Low-energy experiments with leptons such as MEG, Mu3e, MUonE and MUSE complement the research at the high-energy frontier. However, to fully exploit the experimental data, the corresponding Standard Model background has to be known to a high accuracy. For this reason we calculate the fully differential NNLO QED corrections to the processes $\mu\rightarrow e\nu\nu$, $\mu e\rightarrow \mu e$, $\mu p \rightarrow \mu p$ and $e p\rightarrow ep$. Since small-mass effects become non-negligible at this level of precision, the leading logarithmic corrections are taken into account. The corrections due to real photon emissions are computed using FKS$^{2}$, an extension of the FKS subtraction scheme to NNLO in massive QED.
Primary authors
Prof.
Adrian Signer
(Paul Scherrer Institut/Universität Zürich)
Pulak Banerjee
(PSI - Paul Scherrer Institut)
Mr
Tim Engel
(Paul Scherrer Institut/Universität Zürich)
Mr
Yannick Ulrich
(Paul Scherrer Institut/Universität Zürich)
