Published 2004
| Version v1
Miscellaneous
Singularity-softening prescription for the Bethe-Salpeter equation
- 1. Universidade Federal de Itajuba, MG (Brazil). Inst. de Ciencias
- 2. North Carolina State University, Raleigh, NC (United States). Dept. of Physics
Description
The reduction of the two fermion Bethe-Salpeter equation in the framework of light-front dynamics is studied for one gauge A+ = 0. The arising effective interaction can be perturbatively expanded in powers of the coupling constant g, allowing a defined number of gauge boson exchanges. The singularity of the kernel of the integral equation at vanishes plus momentum of the gauge is canceled exactly in on approach. We studied the problem using a singularity-softening prescription for the light-front gauge. (author)
Additional details
Additional titles
- Original title (English)
- Anais do 25. Encontro nacional de fisica de particulas e campos
Publishing Information
- Imprint Title
- Proceedings of the 25. Brazilian national meeting on physics of particles and fields
- Imprint Pagination
- [vp.]
- Journal Page Range
- [1 p.]
Conference
- Title
- 25. Brazilian national meeting on physics of particles and fields
- Original Conference Title
- 25. Encontro nacional de fisica de particulas e campos
- Dates
- 24-28 Aug 2004
- Place
- Caxambu, MG (Brazil)
INIS
- Country of Publication
- Brazil
- Country of Input or Organization
- Brazil
- INIS RN
- 38093345
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Resource subtype / Literary indicator
- Conference, Non-conventional Literature
- Descriptors DEI
- BETHE-SALPETER EQUATION; BOSONS; COUPLING CONSTANTS; FERMIONS; GAUGE INVARIANCE; LADDER APPROXIMATION; LIGHT CONE; PROPAGATOR; QUANTUM FIELD THEORY
- Descriptors DEC
- APPROXIMATIONS; CALCULATION METHODS; EQUATIONS; FIELD THEORIES; INVARIANCE PRINCIPLES; SPACE-TIME
Optional Information
- Notes
- Imprint:Anais do 25. Encontro nacional de fisica de particulas e campos