Physics – High Energy Physics – High Energy Physics - Theory
Scientific paper
1993-11-19
Int. J. Mod. Phys. A8 (1993) 2591-2603
Physics
High Energy Physics
High Energy Physics - Theory
13pp, uses phyzzx, LTH 287 (published in Int. J. Mod. Phys. A)
Scientific paper
The two-dimensional supersymmetric $\s$-model on a K\"ahler manifold has a non-vanishing $\b$-function at four loops, but the $\b$-function at five loops can be made to vanish by a specific choice of renormalisation scheme. We investigate whether this phenomenon persists at six loops, and conclude that it does not; there is a non-vanishing six-loop $\b$-function irrespective of renormalisation scheme ambiguities.
Jack Ian
Jones D. R. T.
Panvel J.
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