About QCD sum rules for pion-nucleon coupling
Nuclear Theory
2007-05-23 v1
Abstract
We point out subtleties in the previous sum rule calculations of the coupling associated with using either the PV or the PS coupling schemes in modeling the phenomenological side. We propose a sum rule which is independent of the coupling schemes used and has less uncertainty in the OPE. The obtained value is where the uncertainty mainly comes from the quark-gluon mixed condensate.
Cite
@article{arxiv.nucl-th/9901029,
title = {About QCD sum rules for pion-nucleon coupling},
author = {Hungchong Kim},
journal= {arXiv preprint arXiv:nucl-th/9901029},
year = {2007}
}
Comments
4 pages, sprocl.sty, Talk presented at 1998 YITP-workshop on QCD and Hadron Physics (Oct. 14 -18, 1998, Kyoto, Japan)