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On the Bargmann–Michel–Telegdi equations, and spin–orbit coupling: A tribute to Raymond Stora
Nuclear Physics B
The Bargmann-Michel-Telegdi equations describing the motions of a spinning, charged, relativistic particle endowed with an anomalous magnetic moment in an electromagnetic field, are reconsidered. They are shown to duly stem from the linearization of the characteristic distribution of a pre-symplectic structure refining the original one of Souriau. In this model, once specialized to the case of a static electric-like field, the angular momentum and energy given by the associated moment map nowdoi:10.1016/j.nuclphysb.2016.04.031 fatcat:cs4xn2tdxvfpbngffquemgiogi