Nondiagonal Parton Distributions in the Leading Logarithmic Approximation
Abstract
In this paper we make predictions for nondiagonal parton distributions in a proton in the LLA. We calculate the DGLAP-type evolution kernels in the LLA, solve the nondiagonal GLAP evolution equations with a modified version of the CTEQ-package and comment on the range of applicability of the LLA in the asymmetric regime. We show that the nondiagonal gluon distribution
g(
x
1
,
x
2
,t,
μ
2
)
can be well approximated at small
x
by the conventional gluon density
xG(x,
μ
2
)
.
Keywords: Hard Diffractive Scattering, Nondiagonal distributions, Evolution