About QCD sum rules for pion-nucleon coupling
核理论
2007-05-23 v1
摘要
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.
引用
@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}
}
备注
4 pages, sprocl.sty, Talk presented at 1998 YITP-workshop on QCD and Hadron Physics (Oct. 14 -18, 1998, Kyoto, Japan)