Muon-electron scattering at NNLO with McMule
High Energy Physics - Phenomenology
2023-09-13 v1
Abstract
A recently proposed experiment, MUonE, aims to extract the hadronic vacuum polarisation contribution to the muon g-2 from muon-electron scattering at low energy. The extrapolation requires that both experimental and theoretical uncertainties do not exceed 10 ppm. This corresponds, at least, to next-to-next-to-leading-order (NNLO) QED corrections to . I will discuss the implementation of a Monte Carlo integrator for this process in the McMule framework arXiv:2212.06481, which provides infrared-safe differential results at said order in QED. An approximation of the MUonE setup provides some phenomenological results and sheds light on the need for beyond-NNLO corrections, which are currently under study within McMule.
Cite
@article{arxiv.2309.06071,
title = {Muon-electron scattering at NNLO with McMule},
author = {Marco Rocco},
journal= {arXiv preprint arXiv:2309.06071},
year = {2023}
}
Comments
Proceedings of RADCOR2023