Amplitudes for the n = 3 moment of the Wilson operator at two loops in the RI/'SMOM scheme

Details Amplitudes for the n = 3 moment of the Wilson operator at two loops in the RI/'SMOM scheme Amplitudes for the n = 3 moment of the Wilson operator at two loops in the RI/'SMOM scheme

2011-05-11

arxiv.org/abs/1105.2138v1

Phys.Rev.D84:016002,2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

33 latex pages, 1 figure and anc directory containing txt file with anomalous dimensions, conversion functions and amplitudes

Scientific paper

10.1103/PhysRevD.84.016002

The renormalization of the third moment of the twist-2 flavour non-singlet Wilson operator is given to two loops in the RI'/SMOM renormalization scheme. This involves renormalizing the operator itself and the two total derivative operators into which it mixes by inserting it into a quark 2-point function and evaluating the amplitudes at the symmetric subtraction point. The corresponding two loop conversion functions are derived from which the three loop Landau gauge anomalous dimension is deduced. The full set of amplitudes for the two loop Green's function for each of the operators are given in both the MSbar and RI'/SMOM schemes.

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