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Muon-electron scattering at NLO

2018/11/30 by Massimo Alacevich, Carlo M. Carloni Calame, Mauro Chiesa +3 · 28 citations
Computer Science · Physics and Astronomy · #Computational Physics and Python Applications #Coupling (piping) #Coupling constant #Elastic scattering #Measure (data warehouse) #Monte Carlo method #Muon #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #Radiative transfer #Realisation #Scattering #hep-ex #hep-ph

paper · pdf · doi:10.1007/jhep02(2019)155

published in Journal of High Energy Physics 2019(2) (Springer Nature) · 25 pages, 2 tables, 14 figures. Minor typos corrected, reference 31 updated. Version matching publication on JHEP

openalex created_date 2018/11/29 · openalex publication_date 2019/02/25 · arxiv created 2019/03/04 · arxiv updated 2019/03/05 · openalex updated_date 2026/08/05

Abstract

A bstract We consider the process of muon-electron elastic scattering, which has been proposed as an ideal framework to measure the running of the electromagnetic coupling constant at space-like momenta and determine the leading-order hadronic contribution to the muon g −2 (MUonE experiment). We compute the next-to-leading (NLO) contributions due to QED and purely weak corrections and implement them into a fully differential Monte Carlo event generator, which is available for first experimental studies. We show representative phenomenological results of interest for the MUonE experiment and examine in detail the impact of the various sources of radiative corrections under different selection criteria, in order to study the dependence of the NLO contributions on the applied cuts. The study represents the first step towards the realisation of a high-precision Monte Carlo code necessary for data analysis.

Citations