Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2006-08-08
Phys.Lett.B641:171-176,2006
Physics
High Energy Physics
High Energy Physics - Phenomenology
15 pages, 2 figures, added some comments and new references. To appear in Physics Letters B
Scientific paper
10.1016/j.physletb.2006.08.048
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 $WW\to H$ 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 $<|S|^{2} > = 27.6\pm7.8$ % ($ 18.2\pm7.0$ %) at Tevatron (CERN-LHC) energy for a dynamical gluon mass $m_{g}=400$ MeV.
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