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Analytic parametrizations of the non-perturbative Pomeron and QCD-inspired models

Abstract : We consider several classes of analytic parametrizations of hadronic scattering amplitudes, and compare their predictions to all available forward data (proton- proton, antiproton-proton, pion-proton, kaon-proton, photon-proton, photon- photon, sigma-proton). Although these parametrizations are very close for energy larger than 9 GeV, it turns out that they differ markedly at low energy, where a universal Pomeron term ~(ln s)**2 enables one to extend the fit down to 4 GeV.
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Submitted on : Tuesday, July 11, 2006 - 11:45:25 AM
Last modification on : Wednesday, January 26, 2022 - 3:41:54 AM

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B. Nicolescu, J. R. Cudell, V. V. Ezhela, P. Gauron, K. Kang, et al.. Analytic parametrizations of the non-perturbative Pomeron and QCD-inspired models. 9th Blois Workshop on Elastic and Diffractive Scattering, Jun 2001, Pruhonice, Czech Republic. ⟨in2p3-00084978⟩

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