Less is More: Non-renormalization Theorems from Lower Dimensional Superspace

Guralnik, Zachary; Kovacs, Stefano; Kulik, Bogdan

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Less is More: Non-renormalization Theorems from Lower Dimensional Superspace

MPS-Authors

Kovacs, Stefano
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

Kulik, Bogdan
Quantum Gravity & Unified Theories, AEI-Golm, MPI for Gravitational Physics, Max Planck Society;

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0409091.pdf
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引用

Guralnik, Z., Kovacs, S., & Kulik, B. (2005). Less is More: Non-renormalization Theorems from Lower Dimensional Superspace. International Journal of Modern Physics A, 20(19), 4546-4553.

引用: https://hdl.handle.net/11858/00-001M-0000-0013-4FFE-C

要旨

We discuss a new class of non-renormalization theorems in N=4 and N=2 Super-Yang-Mills theory, obtained by using a superspace which makes a lower dimensional subgroup of the full supersymmetry manifest. Certain Wilson loops (and Wilson lines) belong to the chiral ring of the lower dimensional supersymmetry algebra, and their expectation values can be computed exactly.