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Rapidity gap survival in the black-disk regime

Abstract : We summarize how the approach to the black-disk regime (BDR) of strong interactions at TeV energies influences rapidity gap survival in exclusive hard diffraction pp -> p + H + p (H = dijet, Qbar-Q, Higgs). Employing a recently developed partonic description of such processes, we discuss (a) the suppression of diffraction at small impact parameters by soft spectator interactions in the BDR; (b) further suppression by inelastic interactions of hard spectator partons in the BDR; (c) correlations between hard and soft interactions. Hard spectator interactions substantially reduce the rapidity gap survival probability at LHC energies compared to previously reported estimates.
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Contributor : Jeanine Pellet <>
Submitted on : Thursday, November 15, 2007 - 3:38:44 PM
Last modification on : Thursday, January 11, 2018 - 6:14:02 AM

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  • HAL Id : in2p3-00188000, version 1
  • ARXIV : 0708.3106



L. Frankfurt, C. E. Hyde, M. Strikman, C. Weiss. Rapidity gap survival in the black-disk regime. XV International Workshop on Deep-Inelastic Scattering and Related Subjects, DIS 2007, Apr 2007, Munich, Germany. ⟨in2p3-00188000⟩



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