Anirban Basu et al JHEP09(2004)045 doi:10.1088/1126-6708/2004/09/045
Some systematics of the coupling constant dependence of N = 4 Yang-Mills
Anirban Basu1, Michael B. Green2 and Savdeep Sethi1
Show affiliationsThe operator, 
τ, that generates infinitesimal changes of the coupling constant in N = 4 Yang-Mills sits in the same supermultiplet as the superconformal currents. We show how superconformal current Ward identities determine a class of terms in the operator product expansion of τ with any other operator. In certain cases, this leads to constraints on the coupling dependence of correlation functions in N = 4 Yang-Mills. As an application, we demonstrate the exact non-renormalization of two and certain three-point correlation functions of BPS operators.
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E-print Number: hep-th/0406231
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Issue 09 (September 2004)
Received 10 August 2004, accepted for publication 20 September 2004
Published 18 October 2004
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Some systematics of the coupling constant dependence of N = 4 Yang-Mills
Anirban Basu et al JHEP09(2004)045
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