PhD Dissertation Defense
High Energy Proton-Proton Elastic Scattering at the Large Hadron Collider and Nucleon Structure
Department of Physics
To gain insight into the structure of the nucleon, we pursue the development of the phenomenological model of Islam et al. (IIFS model) for high energy elastic p-p and pbar-p scattering. We determine the energy dependence of the parameters of the IIFS model using the available elastic differential cross section data from SPS Collider and Tevatron, and the known asymptotic behavior of σtot(s) and ρ(s) from dispersion relation calculations and recent analyses of Cudell et al. Next, we incorporate a high energy elastic valence quark-quark scattering amplitude into the model based on BFKL pomeron to describe p-p collisions at large |t|. Finally, we predict the elastic differential cross section at the unprecedented c.m. energy of 14.0 TeV at LHC. This prediction assumes crucial significance -- because of the approved experiment at LHC by the TOTEM group to measure p-p elastic dσ/dt at 14.0 TeV for the momentum transfer range = 0--10 GeV2. Their measurement will stringently test not only the original IIFS model, but also the additional valence quark-quark scattering contribution that should be dominant for large |t|.
Thursday, April 27, 2006
Gant Science Complex