Rarita-Schwinger equation

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Rarita-Schwinger equation

[′rä·rē·tä ′shviŋ·ər i‚kwā·shən]
(quantum mechanics)
A partial differential equation, similar in form to the Dirac equation, relating the spatial and time dependence of a 16-component wave function describing a free relativistic particle with intrinsic spin ³⁄₂, and its antiparticle.