Radiative Corrections in a Vector-Tensor Model

Details Radiative Corrections in a Vector-Tensor Model Radiative Corrections in a Vector-Tensor Model

2005-08-30

arxiv.org/abs/hep-th/0508230v1

Phys.Lett. B632 (2006) 445-448

Physics

High Energy Physics

High Energy Physics - Theory

Scientific paper

10.1016/j.physletb.2005.10.032

In a recently proposed model in which a vector non-Abelian gauge field interacts with an antisymmetric tensor field, it has been shown that the tensor field possesses no physical degrees of freedom. This formal demonstration is tested by computing the one-loop contributions of the tensor field to the self-energy of the vector field. It is shown that despite the large number of Feynman diagrams in which the tensor field contributes, the sum of these diagrams vanishes, confirming that it is not physical. Furthermore, if the tensor field were to couple with a spinor field, it is shown at one-loop order that the spinor self-energy is not renormalizable, and hence this coupling must be excluded. In principle though, this tensor field does couple to the gravitational field.

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