Phys. Rev. Lett. 81, 3819–3822 (1998)Operator Expansion for the Elastic LimitReceived 13 July 1998; published in the issue dated 2 November 1998 A leading twist expansion in terms of bilocal operators is proposed for the structure functions of deeply inelastic scattering near the elastic limit x→1, which is also applicable to a range of other processes. Operators of increasing dimensions contribute to logarithmically enhanced terms which are suppressed by corresponding powers of 1-x. For the longitudinal structure function, in moment (N) space, all the logarithmic contributions of order lnkN/N are shown to be resummable in terms of the anomalous dimension of the leading operator in the expansion. © 1998 The American Physical Society URL:
http://link.aps.org/doi/10.1103/PhysRevLett.81.3819
DOI:
10.1103/PhysRevLett.81.3819
PACS:
12.38.Cy, 11.10.Jj, 13.60.Hb
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