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Survival probability of large rapidity gaps in a QCD model with a dynamical infrared mass scale

2006/08/17 by E. G. S. Luna · 1 citation
Physics and Astronomy · #Cosmology and Gravitation Theories #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #hep-ex #hep-ph

paper · pdf · doi:10.1016/j.physletb.2006.08.048

published as Phys.Lett.B641:171-176,2006 · 15 pages, 2 figures, added some comments and new references. To appear in Physics Letters B

arxiv created 2006/08/17 · openalex publication_date 2006/09/02 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

We compute the survival probability 〈|S|2〉 of large rapidity gaps (LRG) in a QCD based eikonal model with a dynamical gluon mass, where this dynamical infrared mass scale represents the onset of nonperturbative contributions to the diffractive hadron–hadron scattering. Since rapidity gaps can occur in the case of Higgs boson production via fusion of electroweak bosons, we focus on WW→H fusion processes and show that the resulting 〈|S|2〉 decreases with the increase of the energy of the incoming hadrons, in line with the available experimental data for LRG. We obtain 〈|S|2〉=27.6±7.8% (18.2±7.0%) at Tevatron (CERN-LHC) energy for a dynamical gluon mass mg=400MeV.

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