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pp Elastic Scattering in Near Forward Direction at LHC and Nucleon Structure

M. M. Islam·R. J. Luddy·A. V. Prokudin
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Abstract

We predict pp elastic differential cross section at LHC at the c.m. energy 14 TeV and momentum transfer range |t| = 0-10 GeV*2, which is planned to be measured by the TOTEM group. The field theory model underlying our phenomenological investigation describes the nucleon as a composite object with an outer cloud of quark-antiquark condensate, an inner core of topological baryonic charge, and a still smaller quark-bag of valence quarks. The model satisfactorily describes the asymptotic behavior of sigma-total(s) and rho(s) as well as the measured antiproton-proton elastic differential cross section at c.m. energies 546 GeV, 630 GeV, and 1.8 TeV. The large |t| elastic amplitude of the model incorporates the QCD hard pomeron (BFKL Pomeron plus next to leading order approximations), the perturbative dimensional counting behavior, and the confinement of valence quarks in a small region within the nucleon. Our predicted pp elastic differential cross section at LHC is compared with those of Bourrely et al. and Desgrolard et al.

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M. M. Islam, R. J. Luddy, A. V. Prokudin. 2005-09-13. pp Elastic Scattering in Near Forward Direction at LHC and Nucleon Structure. https://arxiv.org/abs/hep-ph/0509120

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