Non-perturbative methods in relativistic field theory

Conference · Fri Mar 01 00:00:00 EST 2013 · Few-Body Systems

DOI:https://doi.org/10.1007/s00601-012-0334-1· OSTI ID:1062657

Gross, Franz

This talk reviews relativistic methods used to compute bound and low energy scattering states in field theory, with emphasis on approaches that John Tjon and I discussed (and argued about) together. I compare the Bethe–Salpeter and Covariant Spectator equations, show some applications, and then report on some of the things we have learned from the beautiful Feynman–Schwinger technique for calculating the exact sum of all ladder and crossed ladder diagrams in field theory.

• Research Organization: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
• Sponsoring Organization: USDOE Office of Science (SC)
• DOE Contract Number: AC05-06OR23177
• OSTI ID: 1062657
• Report Number(s): JLAB-THY-12-1486; DOE/OR/23177-1987
• Journal Information: Few-Body Systems, Vol. 53, Issue 1-4; Conference: The Fifth Asia-Pacific Conference on Few-Body Problems in Physics, APFB 2011, 22-26 August 2011, Seoul, Korea
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS