N=1 Euler Anomaly from RG-dependent metric-Background

Publisher： Edp Sciences

E-ISSN： 2100-014x|137|issue|10009-10009

ISSN： 2100-014x

Source： EPJ Web of Conference, Vol.137, Iss.issue, 2017-03, pp. : 10009-10009

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Abstract

We consider N = 1supersymmetric gauge theories in the conformal window. By applying a suitable matter superfield- and Weyl-transformation the renormalisation group running of the theory is absorbed into the metric. The latter becomes a function of the Z-factor and the infrared anomalous dimension of the matter superfield. The Euler flow Δa ≡ aUV − aIR|N=1 becomes equivalent to a computation of a free theory with the non-trivial dynamics coming from expanding the Euler invariant in the flow dependent metric. The result is therefore directly obtained in terms of the infrared anomalous dimension confirming an earlier result using the matching of R-currents.

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