Exact Gell-Mann-Low function of supersymmetric Yang-Mills theories from instanton calculus

V. A. Novikov; M. A. Shifman; A. I. Vainshtein; V. I. Zakharov

doi:10.1016/0550-3213(83)90338-3

Exact Gell-Mann-Low function of supersymmetric Yang-Mills theories from instanton calculus

V. A. Novikov, M. A. Shifman, A. I. Vainshtein, V. I. Zakharov

Physics and Astronomy (Twin Cities)

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Abstract

The instanton contribution to the vacuum energy in supersymmetric Yang-Mills theories is considered. Using the renormalizability of the theory we find the exact beta function for n-extended supersymmetry (n = 1, 2, 4). The coefficients of the beta function have a geometrical meaning: they are associated with the number of boson and fermion zero modes in the instanton field. If extra matter superfields are added our method allows one to fix the first two coefficients. We prove a non-renormalization theorem which extends the cancellation of vacuum loops to the case of the external instanton field.

Original language	English (US)
Pages (from-to)	381-393
Number of pages	13
Journal	Nuclear Physics, Section B
Volume	229
Issue number	2
DOIs	https://doi.org/10.1016/0550-3213(83)90338-3
State	Published - Dec 19 1983

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AU - Zakharov, V. I.

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AB - The instanton contribution to the vacuum energy in supersymmetric Yang-Mills theories is considered. Using the renormalizability of the theory we find the exact beta function for n-extended supersymmetry (n = 1, 2, 4). The coefficients of the beta function have a geometrical meaning: they are associated with the number of boson and fermion zero modes in the instanton field. If extra matter superfields are added our method allows one to fix the first two coefficients. We prove a non-renormalization theorem which extends the cancellation of vacuum loops to the case of the external instanton field.

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Exact Gell-Mann-Low function of supersymmetric Yang-Mills theories from instanton calculus

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