2020/09/23 by L. Hayen, A. R. Young, Hayen, Leendert +1 · 1 citation
Physics and Astronomy · #FOS: Physical sciences #Neutrino Physics Research #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th) #Nuclear physics research studies #Particle physics theoretical and experimental studies
paper · pdf · doi:10.48550/arxiv.2009.11364
openalex publication_date 2020/09/23 · openalex created_date 2024/04/11 · openalex updated_date 2026/08/01
Measurements of angular correlations between initial and final particles in β decay remain one of the most promising ways of probing the Standard Model and looking for new physics. As experiments reach unprecedented precision well into the per-mille regime, proper extraction of results requires one to take into account a great number of nuclear structure and radiative corrections in a procedure which becomes dependent upon the experimental geometry. We provide here a compilation and update of theoretical results which describe all corrections in the same conceptual framework, point out pitfalls and review the influence of the experimental geometry. Finally, we summarize the potential for new physics reach.