1999/04/12 by W R B de Araújo, W. R. B. de Araujo, M. Beyer +5 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Dynamics (music) #Feynman diagram #Feynman graph #Formalism (music) #Frame (networking) #Nuclear physics research studies #Quantum and Classical Electrodynamics #Reference frame #Rest frame #hep-ph #nucl-th
paper · pdf · doi:10.1088/0954-3899/25/8/303
published as J.Phys.G25:1589-1592,1999 · 5 pages
arxiv created 1999/04/12 · openalex publication_date 1999/07/26 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/08/06
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.