Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1997-06-02
Phys.Lett. B409 (1997) 251-256
Physics
High Energy Physics
High Energy Physics - Theory
8 pages, Latex, 2 .eps figures
Scientific paper
10.1016/S0370-2693(97)00852-6
We have carried out a two loop computation of the low-energy effective action for the four-dimensional N=2 supersymmetric Yang-Mills system coupled to hypermultiplets, with the chiral superfields of the vector multiplet lying in an abelian subalgebra. We have found a complete cancellation at the level of the integrands of Feynman amplitudes, and therefore the two loop contribution to the action, effective or Wilson, is identically zero.
Giovanni A. de
Grisaru Marcus T.
Rocek Martin
Unge Rikard von
Zanon Daniela
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