Two-gluon exchange graphs in cavity QCD to order αs2

• Main Author: Schumann, Marc
• Other Authors: Viollier, Raoul D
• Format: Dissertation
• Language: English
• Published: University of Cape Town 2016
• Subjects: Theoretical Physics; Physics
• Online Access: http://hdl.handle.net/11427/16144

Includes bibliographical references. === The purpose of this thesis is to go beyond the usual first order calculations and to evaluate the two-gluon exchange diagrams, which are second order in as. Two distinct Feynman diagrams exist, of which each consists of twenty-four timeordered diagrams. All the possible time-ordered diagrams are calculated here. A similar calculation of only the first six time-ordered diagrams has been performed by Stoddart et al.The purpose of this thesis is to go beyond the usual first order calculations and to evaluate the two-gluon exchange diagrams, which are second order in αs. Two distinct Feynman diagrams exist, of which each consists of twenty-four timeordered diagrams. All the possible time-ordered diagrams are calculated here. A similar calculation of only the first six time-ordered diagrams has been performed by Stoddart et al.