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Constraints on hadronic current operators in relativistic quantum-mechanical models
Journal article   Peer reviewed

Constraints on hadronic current operators in relativistic quantum-mechanical models

W. N Polyzou
Physical review. D, Particles and fields, Vol.32(8), pp.2216-2222
10/15/1985
DOI: 10.1103/PhysRevD.32.2216
PMID: 9956398

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Abstract

The conditions of current conservation and Poincaré invariance are reduced to a set of four equations that must be satisfied by the charge density at the origin. These equations require that the charge density has nonvanishing many-body (exchange current) corrections for systems of interacting particles in the one-photon exchange approximation. A large class of currents with acceptable many-body corrections are exhibited. The problem of how to construct minimal many-body corrections to one-body current operators that restore current conservation and Poincaré invariance is discussed. © 1985 The American Physical Society.
Physics Classical and quantum physics: mechanics and fields Exact sciences and technology General Theory of quantized fields

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