Front-form calculations of exchange currents in elastic electron-deuteron scattering FRONT-FORM CALCULATIONS OF EXCHANGE CURRENTS IN ELASTIC ELECTRON-DEUTERON SCATTERING Title and Department Date FRONT-FORM CALCULATIONS OF EXCHANGE CURRENTS IN ELASTIC ELECTRON-DEUTERON SCATTERING

Yunfei Huang, Yunfei Huang, Wayne Polyzou, Yunfei Huang, Gerald Payne, William Klink, Fritz Coester, John Bayouth, To Sheng, Ceecee Sheng
2008 unpublished
Part of the Physics Commons Recommended Citation Huang, Yunfei. "Front-form calculations of exchange currents in elastic electron-deuteron scattering." PhD (Doctor of Philosophy) thesis, University of Iowa, 2008. ABSTRACT Electron-deuteron scattering is an ideal tool for studying nuclear structure and nuclear forces. The elastic deuteron current matrix elements have been calculated using a Poincaré invariant quantum model with a light-front kinematic symmetry. The impulse approximation violates
more » ... the Poincaré covariance and current conservation for the interacting system and two-body currents are required to satisfy these constraints. A model two-body current that has a structure motivated by "pair" currents was constructed in this work. The Argonne V 18 potential was used as the model nucleon-nucleon interaction and empirical nucleon form factors were used as input in the calculation of the deuteron form factors and structure functions. The sensitivity of the results to different nucleon-nucleon interactions, different nucleon form factors, and different choices of independent current matrix elements was examined. The calculations of elastic electron-deuteron scattering observables in this work are consistent with experiment to within uncertainties in the input. Abstract Approved: Thesis Supervisor
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