On the loop approximation in nucleon QCD sum rules
High Energy Physics - Phenomenology
2014-10-24 v1
Abstract
There was a general believe that the nucleon QCD sum rules which include only the quark loops and thus contain only the condensates of dimension d=3 and d=4 have only a trivial solution. We demonstrate that there is also a nontrivial solution. We show that it can be treated as the lowest order approximation to the solution which includes the higher terms of the Operator Product Expansion. Inclusion of the radiative corrections improves the convergence of the series.
Keywords
Cite
@article{arxiv.1410.6282,
title = {On the loop approximation in nucleon QCD sum rules},
author = {E. G. Drukarev and M. G. Ryskin and V. A. Sadovnikova},
journal= {arXiv preprint arXiv:1410.6282},
year = {2014}
}
Comments
11 pages, 3 figures