pith. sign in

arxiv: hep-ph/9407310 · v1 · submitted 1994-07-16 · ✦ hep-ph

Determination of QCD Condensates Without Hadronic Spectra

classification ✦ hep-ph
keywords condensatecondensatesdeterminationfour-quarkgammagluonleftquark-gluon
0
0 comments X
read the original abstract

The bounds on the values of gluon, four-quark and quark-gluon condensates are derived from the requirement of consistency of the sum rules for various correlators of the hybrid current $a_{\mu}=g\bar d\gamma_{\rho}\tilde G_{\rho\mu}u$. The upper bound for the gluon condensate is found to be less then twice its standard value while for the four-quark condensates the violation of factorization by a factor 3-4 is allowed. The value of the quark-gluon condensate is given as a function of $\left<\frac{\alpha_s}{\pi} G^2\right>$ and $\left<(\bar q\Gamma q)^2\right >$ which for the standard values yields $m_0^2=0.63~\mbox{GeV}^2$ . Our procedure of simultaneous solution of a number of sum rules allows the quantitative error analysis and is appropriate for condensate determination also in other cases.

This paper has not been read by Pith yet.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.