Pion electromagnetic form factor in the Kroll-Lee-Zumino model at zero and finite temperature

• Main Author: Willers, Bernard
• Other Authors: Dominguez, Cesareo A
• Format: Dissertation
• Language: English
• Published: University of Cape Town 2014
• Subjects: Theoretical Physics
• Online Access: http://hdl.handle.net/11427/6510

Includes abstract. === Includes bibliographical references (p. 47-48). === The renormalizable Abelian quantum field theory model of Kroll, Lee and Zumino is used to calculate next-to-leading order corrections to the pion electromagnetic form factor in vector meson dominance. At zero temperature the predictions for both the form factor and electromagnetic radius are found to improve greatly over the tree level result, and are in good agreement with the experimental data. A calculation of the vertex and self energy functions in the Matsubara formalism at finite temperature do not agree with the results of the Gale & Kapusta calculations. The resulting prediction for the radius is found to increase with temperature, consistent vith ideas about haclronic deconfinernent.