$p p$ Elastic Scattering at LHC in a Nucleon-Structure Model

Islam, M. M.; Kaspar, J.; Luddy, R. J.

Report/Contribution to a conference proceedings

PUBDB-2016-02705

$p p$ Elastic Scattering at LHC in a Nucleon-Structure Model

Islam, M. M. (Corresponding author) ; Kaspar, J. ; Luddy, R. J.

2007

12th International Conference on Elastic and Diffractive Scattering: Forward Physics and QCD, EDS 07, Hamburg, Germany, 21 May 2007 - 25 May 2007 267-272 (2007)

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Report No.: arXiv:0708.1156

Abstract: We predict pp elastic differential cross sections at LHC at c.m. energy 14 TeV and momentum transfer range |t| = 0 - 10 GeV*2 in a nucleon-structure model. In this model, the nucleon has an outer cloud of quark-antiquark condensed ground state, an inner shell of topological baryonic charge (r ~ 0.44F) probed by the vector meson omega, and a central quark-bag (r ~ 0.2F) containing valence quarks. We also predict elastic differential cross section in the Coulomb-hadronic interference region. Large |t| elastic scattering in this model arises from valence quark-quark scattering, which is taken to be due to the hard-pomeron (BFKL pomeron with next to leading order corrections). We present results of taking into account multiple hard-pomeron exchanges, i.e. unitarity corrections. Finally, we compare our prediction of pp elastic differential cross section at LHC with the predictions of various other models. Precise measurement of pp elastic differential cross section at LHC by the TOTEM group in the |t| region 0 - 5 GeV*2 will be able to distinguish between these models.

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