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VOLUME 72 (2000) | ISSUE 8 | PAGE 583
Multiple-Pomeron splitting in QCD - a novel anti-shadowing effect in coherent dijet production on nuclei
PACS: 11.80.La, 13.85.-t, 13.87.-a, 25.80.Hp
We discuss the salient features of Pomeron splitting mechanism for coherent diffraction of pions into hard dijets on nuclei. Our findings include anti-shadowing multiple-Pomeron splitting expansion for diffractive amplitudes, exact cancellation of nuclear attenuation and broadening/anti-shadowing 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.