Meson-meson scattering in 2+1 dimensional lattice quantum electrodynamics

• Main Author: Dominquez, Alberto Luis
• Format: Others
• Published: FIU Digital Commons 1994
• Subjects: Physical Sciences and Mathematics; Physics
• Online Access: http://digitalcommons.fiu.edu/etd/3634

For three-dimensional compact lattice quantum electrodynamics, the meson-meson energy spectrum is obtained from a truncated time-correlation matrix of field operators. The energy levels indicate a slightly attractive residual interaction between the mesons. From the finite-volume spectrum, the scattering phase shifts can be calculated for the various irreducible representations of the lattice symmetry group. The s-wave phase shifts indicate short-range repulsion, while the d-wave data indicate intermediate-range attraction. This work serves as a model for describing the strong nuclear force from basic principles.