Geodesic
Energy-momentum tensor of intermediate vector bosons in an external electromagnetic field
Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 2, pp. 210-217 
V. M. Mostepanenko; I. Yu. Sokolov. Energy-momentum tensor of intermediate vector bosons in an external electromagnetic field. Teoretičeskaâ i matematičeskaâ fizika, Tome 74 (1988) no. 2, pp. 210-217. http://geodesic.mathdoc.fr/item/TMF_1988_74_2_a5/
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     author = {V. M. Mostepanenko and I. Yu. Sokolov},
     title = {Energy-momentum tensor of intermediate vector bosons in an external electromagnetic field},
     journal = {Teoreti\v{c}eska\^a i matemati\v{c}eska\^a fizika},
     pages = {210--217},
     year = {1988},
     volume = {74},
     number = {2},
     language = {ru},
     url = {http://geodesic.mathdoc.fr/item/TMF_1988_74_2_a5/}
}
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Expressions are obtained for the canonical and metric energy-momentum tensors of the vector field of intermediate bosons in an external electromagnetic field. It is shown that in the case of a gyromagnetic ratio not equal to unity the energy-momentum tensor cannot be symmetrized on its indices, and an additional term proportional to the anomalous magnetic moment appears in the conservation laws. A modification of the canonical formalism for scalar and vector fields in an external field is proposed in accordance with which the Hamiltonian density is equal to the 00 component of the energy-momentum tensor. An expression for the energy-momentum tensor of a closed system containing a gauge field of intermediate bosons and an electromagnetic field is obtained.

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