English

Precise Predictions for $\mu^{\pm}e^-\rightarrow\mu^{\pm}e^-$ at the MUonE Experiment

High Energy Physics - Phenomenology 2026-02-13 v2 High Energy Physics - Experiment

Abstract

The proposed fixed-target experiment, MUonE, at CERN will aim to measure the hadronic contribution to the running of the QED coupling by analysing the scattering of muons on electrons. Here we present state-of-the-art predictions for the process μ±eμ±e\mu^{\pm}e^-\rightarrow\mu^{\pm}e^-, where for the first time an all-order resummation of soft and soft-collinear logarithms has been performed. Further, we match this resummation with the complete next-to-leading and the dominant next-to-next-to-leading higher-order corrections. We find that the resummation has a dominant effect in the signal region, while the systematic matching significantly reduces the perturbative uncertainty.

Keywords

Cite

@article{arxiv.2512.14431,
  title  = {Precise Predictions for $\mu^{\pm}e^-\rightarrow\mu^{\pm}e^-$ at the MUonE Experiment},
  author = {Alan Price},
  journal= {arXiv preprint arXiv:2512.14431},
  year   = {2026}
}

Comments

6 figures. Accepted for publication in JHEP

R2 v1 2026-07-01T08:27:25.874Z