A. A. Deriglazov. Variational problem for the Frenkel and the Bargmann-michel-telegdi (bmt) equations
Natural Sciences / Physics / Particle physics
Submitted on: Sep 06, 2012, 05:16:32
Description: We propose Lagrangian formulation for the particle with value of spin fixed within the classical theory. The Lagrangian turns out to be invariant under non-abelian group of local symmetries. As the gauge-invariant variables for description of spin we can take either the Frenkel tensor or the BMT vector. Fixation of spin within the classical theory implies $O(hbar)$,-corrections to the corresponding equations of motion.