| Issue |
Europhys. Lett.
Volume 56, Number 3, November 2001
|
|
|---|---|---|
| Page(s) | 367 - 371 | |
| Section | The physics of elementary particles and fields | |
| DOI | https://doi.org/10.1209/epl/i2001-00528-3 | |
| Published online | 01 December 2003 | |
"Dynamical" non-minimal higher-spin interaction and gyromagnetic ratio g=2
1
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
Received:
20
February
2001
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
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