%0 Journal Article
%T An operator expansion for the elastic limit
%A R. Akhoury
%A M. G. Sotiropoulos
%A G. Sterman
%J Physics
%D 1998
%I arXiv
%R 10.1103/PhysRevLett.81.3819
%X A leading twist expansion in terms of bi-local operators is proposed for the structure functions of deeply inelastic scattering near the elastic limit $x \to 1$, which is also applicable to a range of other processes. Operators of increasing dimensions contribute to logarithmically enhanced terms which are supressed by corresponding powers of $1-x$. For the longitudinal structure function, in moment ($N$) space, all the logarithmic contributions of order $\ln^k N/N$ are shown to be resummable in terms of the anomalous dimension of the leading operator in the expansion.
%U http://arxiv.org/abs/hep-ph/9807330v1