Diffractive Production at Collider - I: Soft Diffraction and Dino's Paradox

Details Diffractive Production at Collider - I: Soft Diffraction and Dino's Paradox Diffractive Production at Collider - I: Soft Diffraction and Dino's Paradox

1997-06-06

arxiv.org/abs/hep-ph/9706276v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

31 pages, 4 EPS figures

Scientific paper

One of the more interesting developments from recent collider experiments is the finding that hadronic total cross sections as well as elastic cross s ections can be described by the exchange of a "soft Pomeron" pole in the near-forward limit. The most impor tant consequence of Pomeron being a pole is the factorization property. However, due to Pomeron intercept being greater than 1, the extrapolated single diffraction dissociation cross section based on a classical triple-Pomeron formula is too large leading to a potential unitarity violation at Tevatron energies. It is our desire here to examine carefully the notion of Pomeron flux renormalization, proposed by Goulianos, and to suggest an alternative resol ution. Our treatment lies in a proper implementation of final-state screening correction, with "flavoring" for Pomeron as the primary dynamical mechanism for setting the relevant energy s cale. In our scheme, which we shall occasionally refer to as ``unitarization of Pomeron flux", initia l-state screening remains unimportant, consistent with the pole dominance picture for elastic and total cross section hypothesis at Tevatron energies. Since factorization remains intact, umambiguo us predictions for double Pomeron exchange, doubly diffraction dissociation, etc., both at Tevatron and at LHC energies, can be made.

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