Total Cross-sections at very high energies: from protons to photons

A. Grau (U. Granada; Bangalore; Boston); G. Pancheri (INFN Frascati); India); Italy & Northeastern University; R.M. Godbole (IIST; Spain); Y.N. Srivastava (U. Perugia

arxiv: 1001.4749 · v1 · submitted 2010-01-26 · ✦ hep-ph

Total Cross-sections at very high energies: from protons to photons

R.M. Godbole (IIST , Bangalore , India) , A. Grau (U. Granada , Spain) , G. Pancheri (INFN Frascati) , Y.N. Srivastava (U. Perugia , Italy & Northeastern University

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classification ✦ hep-ph

keywords modeltotalcross-sectionsgluonhighinfraredrisebehaviour

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A model for both proton and photon total cross-sections is presented and compared with data. The model is based on the eikonal representation, with QCD mini-jets to drive the rise and soft gluon kt-resummation into the Infrared region to tame the excessive rise due to low-x perturbative gluons. We discuss the effects of a singular but integrable expression for the Infrared gluon spectrum on the high energy behaviour of the total cross-section expected in this model.

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Total Cross-sections at very high energies: from protons to photons

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