"Dynamical" non-minimal higher-spin interaction and gyromagnetic ratio g=2
Institute of Physics, Tartu University Riia 142, 51014 Tartu, Estonia
2 Institute of Theoretical Physics, Tartu University Tähe 4, 51010 Tartu, Estonia
3 Department of Physics, Tallinn Technical University Ehitajate 5, 19086 Tallinn, Estonia
Accepted: 26 July 2001
The field-dependent invariant representation (the "dynamical" representation) of the Poincaré algebra is considered as a dynamical principle in order to get a corresponding "dynamical" electromagnetic coupling for higher spins (). If in lower-spin (s=0,1/2) cases the "dynamical" coupling is taken to coincide with the minimal electromagnetic coupling, the higher-spin coupling is inevitably non-minimal, containing a term linear in the field strength tensor . This non-minimal coupling leads to g=2.
PACS: 13.40.Em – Electric and magnetic moments / 03.65.Pm – Relativistic wave equations
© EDP Sciences, 2001