External leg amputation in conformal invariant three-point function

Details External leg amputation in conformal invariant three-point function External leg amputation in conformal invariant three-point function

2009-07-10

arxiv.org/abs/0907.1769v3

Eur.Phys.J.C71:1621,2011

Physics

High Energy Physics

High Energy Physics - Theory

16 pages; last paragraph added in Sec. 10, presentation improved, to appear in Eur. Phys. J. C

Scientific paper

10.1140/epjc/s10052-011-1621-6

Amputation of external legs is carried out explicitly for the conformal invariant three-point function involving two spinors and one vector field. Our results are consistent with the general result that amputing an external leg in a conformal invariant Green function replaces a field by its conformal partner in the Green function. A new star-triangle relation, involving two spinors and one vector field, is derived and used for the calculation.

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