Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2009-03-02
Physics
High Energy Physics
High Energy Physics - Phenomenology
16 pages, 4 figures, based on a talk by U. Maor at LISHEP 2009, UERJ, Rio de Janeiro, Jan. 2009
Scientific paper
Multi Pomeron interactions are the main source of high mass diffraction. Their role in high energy dynamics greatly influences the predictions for high energy cross sections and survival probabilities of hard diffraction channels, notably, diffractive Higgs production at the LHC. Our approach, is motivated by the fact that we obtain a very small value for the fitted slope of the Pomeron trajectory, which justifies the use of perturbative QCD for soft scattering. Our suggested model differs from the proposal of the Durham KMR group which is based on a parton model interpretation of the Reggeon calculus in the complex J-plane in which multi Pomeron vertices are arbitrarily defined. The theoretical input and predictions of the two groups, as well as their data analysis and procedures are compared and evaluated.
Gotsman Errol
Levin Eugene
Maor Uri
Miller Jeffrey S.
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