Mass spectrum and elastic scattering in the massive SU(2)_f Schwinger model on the lattice
Preprint
- 30 April 1999
Abstract
We calculate numerically scattering phases for elastic meson-meson scattering processes in the strongly coupled massive Schwinger-model with an SU(2) flavour symmetry. These calculations are based on Luescher's method in which finite size effects in two-particle energies are exploited. The results from Monte-Carlo simulations with staggered fermions for the lightest meson ("pion") are in good agreement with the analytical strong-coupling prediction. Furthermore, the mass spectrum of low-lying mesonic states is investigated numerically. We find a surprisingly rich spectrum in the mass region [m_\pi,4 m_\pi].Keywords
All Related Versions
- Version 1, 1999-04-30, ArXiv
- Published version: Nuclear Physics B, 560 (1-3), 431.
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