A Global View of the EDM Landscape

Autor: Degenkolb, Skyler, Elmer, Nina, Modak, Tanmoy, Mühlleitner, Margarete, Plehn, Tilman
Rok vydání: 2024
Předmět:
Druh dokumentu: Working Paper
Popis: Permanent electric dipole moments (EDMs) are sensitive probes of the symmetry structure of elementary particles, which in turn is closely tied to the baryon asymmetry in the universe. A meaningful interpretation framework for EDM measurements has to be based on effective quantum field theory. We interpret the measurements performed to date in terms of a hadronic-scale Lagrangian, using the SFitter global analysis framework. We find that part of this Lagrangian is constrained very well, while some of the parameters suffer from too few high-precision measurements. Theory uncertainties lead to weaker model constraints, but can be controlled within the global analysis.
Databáze: arXiv