Multiple-Pomeron splitting in QCD—A novel antishadowing effect in coherent dijet production on nuclei

  • N. N. Nikolaev
  • W. Schäfer
  • G. Schwiete
Fields, Particles, and Nuclei

Abstract

We discuss the salient features of the Pomeron splitting mechanism for coherent diffraction of pions into hard dijets on nuclei. Our findings include antishadowing multiple-Pomeron splitting expansion for diffractive amplitudes, exact cancellation of nuclear attenuation, and broadening/antishadowing effects to leading twist and parameter-free perturbative calculation of nuclear-rescattering-driven higher twist correction. We comment on the pQCD interpretation of the E791 results on diffractive dijets.

PACS numbers

11.80.La 13.85.−t 13.87.−a 25.80.Hp 

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Copyright information

© MAIK "Nauka/Interperiodica" 2000

Authors and Affiliations

  • N. N. Nikolaev
    • 1
    • 2
  • W. Schäfer
    • 2
  • G. Schwiete
    • 2
  1. 1.Landau Institute for Theoretical PhysicsRussian Academy of SciencesMoscowRussia
  2. 2.Institut für Kernphysik (Th)FZ JülichJülichGermany

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