Non-local on-shell field redefinition for the SME

Details Non-local on-shell field redefinition for the SME Non-local on-shell field redefinition for the SME

2006-09-23

arxiv.org/abs/hep-th/0609162v1

Phys.Rev.D74:125001,2006

Physics

High Energy Physics

High Energy Physics - Theory

12 pages, REVTeX4

Scientific paper

10.1103/PhysRevD.74.125001

This work instigates a study of non-local field mappings within the Lorentz- and CPT-violating Standard-Model Extension (SME). An example of such a mapping is constructed explicitly, and the conditions for the existence of its inverse are investigated. It is demonstrated that the associated field redefinition can remove b-type Lorentz violation from free SME fermions in certain situations. These results are employed to obtain explicit expressions for the corresponding Lorentz-breaking momentum-space eigenspinors and their orthogonality relations.

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