Pseudo-gauges and relativistic spin hydrodynamics for interacting Dirac and Proca fields

Abstract

We present the explicit expressions of different pseudo-gauge transformations for Dirac and Proca fields considering a general interaction term. The particular case of the interaction of Dirac and Proca fields with a background electromagnetic field is also studied. Starting from the quantum kinetic theory with collisions derived from the Wigner-function formalism for massive spin-1/2 and spin-1 particles, we establish a connection between different pseudo-gauges and relativistic spin hydrodynamics. The physical implications of the various decompositions of orbital and spin angular momentum are discussed.

21 pages, no figures

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Cited by in corpus (20)

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• Spin alignment of vector mesons in heavy-ion collisions
• Relativistic dissipative spin hydrodynamics from kinetic theory with a nonlocal collision term
• Theories of Relativistic Dissipative Fluid Dynamics
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