## Abstract

The anomalous dimensions of high-twist operators in deeply inelastic scattering (γ_{2n}) are calculated in the limit when the moment variable N → 1 (or x_{B} → 0) and at large Q^{2} (the double logarithmic approximation) in perturbative QCD. We find that the value of γ_{2n} × (N - 1) in this approximation behaves as [N_{c}α_{S}/π(N - 1)]n^{2} [1 + 1 3δ(n^{2} - 1)] where δ ≈ ^{-2}. This implies that the contributions of the high-twist operators give rise to an earlier onset of shadowing than was estimated before. The derivation makes use of a Pomeron exchange approximation, with the Pomerons interacting attractively. We find that they behave as a system of fermions.

Original language | English |
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Pages (from-to) | 39-58 |

Number of pages | 20 |

Journal | Nuclear Physics, Section B |

Volume | 419 |

Issue number | 1 |

DOIs | |

State | Published - 9 May 1994 |

Externally published | Yes |

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