Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
2003-02-26
JHEP 0305 (2003) 015
Physics
High Energy Physics
High Energy Physics - Theory
32 pages, latex, 7 EPS figures. v2: references, comments added, typos corrected, incorrect `skeleton' conjecture in sect. 3 re
Scientific paper
10.1088/1126-6708/2003/05/015
There are currently many string inspired conjectures about the structure of the low-energy effective action for super Yang-Mills theories which require explicit multi-loop calculations. In this paper, we develop a manifestly covariant derivative expansion of superspace heat kernels and present a scheme to evaluate multi-loop contributions to the effective action in the framework of the background field method. The crucial ingredient of the construction is a detailed analysis of the properties of the parallel displacement propagators associated with Yang-Mills supermultiples in N-extended superspace.
Kuzenko Sergei M.
McArthur Ian N.
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