%0 Generic %1 Ryskin2014QCD %A Ryskin, M. G. %A Sadovnikova, V. A. %D 2014 %K condensate %T QCD sum rules for the nucleon and the non-locality of quark condensates %U http://arxiv.org/abs/1407.4967 %X We emphasize the role of the x dependence of the quark condensate <|\bar q(0)q(x)|> originated by the zero fermion modes in the instanton vacuum. The effect is not negligible since the inverse size of the instanton 1/\rho\~600MeV is comparable with the value of Borel mass M\~1GeV. Using as an example the sum rules for the nucleon we show that this "non-locality" may strongly affected the conventional results obtained under the <|q(0)q(x)|>=<|q(0)q(0)|> approximation.

@misc{Ryskin2014QCD, abstract = {{We emphasize the role of the x dependence of the quark condensate \<|\bar q(0)q(x)|\> originated by the zero fermion modes in the instanton vacuum. The effect is not negligible since the inverse size of the instanton 1/\rho\~{}600MeV is comparable with the value of Borel mass M\~{}1GeV. Using as an example the sum rules for the nucleon we show that this "non-locality" may strongly affected the conventional results obtained under the \<|\bar q(0)q(x)|\>=\<|\bar q(0)q(0)|\> approximation.}}, added-at = {2019-02-23T22:09:48.000+0100}, archiveprefix = {arXiv}, author = {Ryskin, M. G. and Sadovnikova, V. A.}, biburl = {https://www.bibsonomy.org/bibtex/25edc8bcb20a84425dd492b72d13d1699/cmcneile}, citeulike-article-id = {13274076}, citeulike-linkout-0 = {http://arxiv.org/abs/1407.4967}, citeulike-linkout-1 = {http://arxiv.org/pdf/1407.4967}, day = 18, eprint = {1407.4967}, interhash = {a0b90120d9d573072db8175f45bc4786}, intrahash = {5edc8bcb20a84425dd492b72d13d1699}, keywords = {condensate}, month = jul, posted-at = {2014-07-21 09:48:45}, priority = {2}, timestamp = {2019-02-23T22:15:27.000+0100}, title = {{QCD sum rules for the nucleon and the non-locality of quark condensates}}, url = {http://arxiv.org/abs/1407.4967}, year = 2014 }