TY  - JOUR
PB  - SciPost Foundation
DO  - 10.21468/SciPostPhys.15.3.104
TI  - Lepton pair production at NNLO in QED with EW effects
PY  - 2023/09/20
UR  - https://scipost.org/SciPostPhys.15.3.104
JF  - SciPost Physics
JA  - SciPost Phys.
VL  - 15
IS  - 3
SP  - 104
A1  - Kollatzsch, Sophie
AU  - Ulrich, Yannick
AB  - We present a fully differential calculation of lepton pair production, taking into account the dominant next-to-next-to-leading order QED corrections as well as next-to-leading order electroweak and polarisation effects. We include all lepton masses, hard photon emission, as well as non-perturbative hadronic corrections. The corresponding matrix elements are implemented in the Monte Carlo framework McMule. In order to obtain a numerically stable implementation, we extend next-to-soft stabilisation, a universal technique based on a next-to-leading-power expansion, to calculations with polarised leptons. As an example, we show results tailored to the Belle II detector with the current setup as well as a potential future configuration that includes polarised beams.
ER  -

@Article{10.21468/SciPostPhys.15.3.104,
	title={{Lepton pair production at NNLO in QED with EW effects}},
	author={Sophie Kollatzsch and Yannick Ulrich},
	journal={SciPost Phys.},
	volume={15},
	pages={104},
	year={2023},
	publisher={SciPost},
	doi={10.21468/SciPostPhys.15.3.104},
	url={https://scipost.org/10.21468/SciPostPhys.15.3.104},
}