  QCD sum rules for the nucleon are considered in complex q^2 plane with
inclusion of the radiative corrections of the order alpha_s. It is shown that
the radiative corrections affect mainly the residue lambda^2 of the nucleon
pole. Their influence on the value of the nucleon mass is much smaller.
Following the ideas of Ioffe and Zyablyuk we expand the analysis to complex
values of q^2. This provides a more stable solution. Varying the weights of the
contributions of different dimensions by changing the value of the angle in the
complex plane we find the value of the six-quark condensate which insures the
best consistency of the right hand sides and left hand sides of the sum rules.
The corresponding value of the six-quark condensate appears to be only about
10% smaller then the one, provided by the factorization approximation. The
value of the four-quark condensate also appears to be close to the one,
corresponding to the factorization assumption. The role of the gluon condensate
and its possible values are discussed.
