Massless correlators of vector, scalar and tensor currents in position space at orders alpha_s^3 and alpha_s^4: explicit analytical results
High Energy Physics - Phenomenology
2011-01-13 v1 High Energy Physics - Lattice
Abstract
We present analytical results both in momentum and position space for the massless correlators of the vector and scalar currents to order alpha_s^4 as well as for the tensor currents to order alpha_s^3. The evolution equations for the correlators together with all relevant anomalous dimensions are discussed in detail. As an application we present explicit conversion formulas relating the MSbar-renormalized vector, scalar and tensor currents to their counterparts renormalized in the X-space renormalization scheme more appropriate for lattice calculations.
Keywords
Cite
@article{arxiv.1010.1145,
title = {Massless correlators of vector, scalar and tensor currents in position space at orders alpha_s^3 and alpha_s^4: explicit analytical results},
author = {K. G. Chetyrkin and A. Maier},
journal= {arXiv preprint arXiv:1010.1145},
year = {2011}
}
Comments
29 pages, 2 figures