Feynman versus Bakamjian-Thomas in Light Front Dynamics
High Energy Physics - Phenomenology
2008-11-26 v1 Nuclear Theory
Abstract
We compare the Bakamjian-Thomas (BT) formulation of relativistic few-body systems with light front field theories that maintain closer contact with Feynman diagrams. We find that Feynman diagrams distinguish Melosh rotations and other kinematical quantities belonging to various composite subsystem frames that correspond to different loop integrals. The BT formalism knows only the rest frame of the whole composite system, where everything is evaluated.
Cite
@article{arxiv.hep-ph/9904307,
title = {Feynman versus Bakamjian-Thomas in Light Front Dynamics},
author = {W. R. B. de Araujo and M. Beyer and T. Frederico and H. J. Weber},
journal= {arXiv preprint arXiv:hep-ph/9904307},
year = {2008}
}
Comments
5 pages