Published January 26, 1989
| Version v1
Journal article
Scattering of composite particles in a QCD-like model
Description
As a model of QCD, we study QED1+1, which is a gauge theory and does not have asymptotically free single fermions. We use the light-cone momentum representation on a lattice and a non-perturbative time-dependent method to compute the S-matrix. After introducing Coulomb screening of the interaction, free single fermions can exist asymptotically and we compute fermion-antifermion scattering. We also compute two-fermion-two-antifermion scattering and relate it to the amplitude for scattering of two fermion-antifermion bound states. We discuss convergence to the continuum limit and renormalization. (orig.)
Additional details
Publishing Information
- Journal Title
- Physics Letters, (Section) B
- Journal Volume
- 217
- Journal Issue
- 3
- Series
- Phys. Lett., B.
- Journal Page Range
- 215-219
- ISSN
- 0370-2693
- CODEN
- PYLBA
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 20020047
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- ASYMPTOTIC SOLUTIONS; BOUND STATE; COMPOSITE MODELS; ELASTIC SCATTERING; FERMIONS; FOUR-BODY PROBLEM; HAMILTONIANS; LAGRANGIAN FIELD THEORY; LATTICE FIELD THEORY; LIGHT CONE; MANY-BODY PROBLEM; MATRIX ELEMENTS; ONE-DIMENSIONAL CALCULATIONS; PHASE SPACE; RENORMALIZATION; S MATRIX; SCATTERING AMPLITUDES; SCHWINGER-TOMONAGA FORMALISM; SPACE-TIME; TIME DEPENDENCE; TWO-DIMENSIONAL CALCULATIONS; U-1 GROUPS; UNIFIED GAUGE MODELS; WAVE PACKETS
- Descriptors DEC
- AMPLITUDES; CONSTRUCTIVE FIELD THEORY; ELECTRODYNAMICS; FIELD THEORIES; LIE GROUPS; MATHEMATICAL MODELS; MATHEMATICAL OPERATORS; MATHEMATICAL SPACE; MATRICES; PARTICLE MODELS; QUANTUM ELECTRODYNAMICS; QUANTUM FIELD THEORY; QUANTUM OPERATORS; SCATTERING; SPACE; SYMMETRY GROUPS; U GROUPS