p p Elastic Scattering at LHC and Nucleon Structure

Abstract

High energy elastic $pp$ scattering at the Large Hadron Collider (LHC) at c.m. energy 14 TeV is predicted using the asymptotic behavior of ${\sigma }_{tot}(s)$ and $\rho (s)$ known from dispersion relation calculations and the measured elastic $\bar{p}p$ differential cross section at $\sqrt{s}=546\mathrm{GeV}$. The effective field theory model underlying the phenomenological analysis describes the nucleon as having an outer cloud of quark-antiquark condensed ground state, an inner core of topological baryonic charge of radius $\simeq 0.44F$ and a still smaller valence quark-bag of radius $\lesssim 0.1\mathrm{F}$. The LHC experiment TOTEM (Total and Elastic Measurement), if carried out with sufficient precision from $|t|=0$ to $|t|>10\mathrm{Ge}{\mathrm{V}}^2$, will be able to test this structure of the nucleon.

13 pages, 6 figures, to be published in the Modern Physics Letters A

References in corpus (2)

• Soft diffraction and the elastic slope at Tevatron and LHC energies: a multi-Pomeron approach
• The First Three Pomerons

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