The Lattice Schwinger model with the SW action
Jul, 1998Citations per year
Abstract:
We perform a model study on the 2-flavor lattice Schwinger model using standard Wilson and improved Sheikholeslami-Wohlert (SW) action. We find, that the phase diagram is altered, the critical line shifted closer towards its continuum value . We find no improvement in the rotation invariance of meson propagators; the scaling of the Schwinger mass is considerably improved, high momentum states are not. The additional cost of CPU-time is highly justified when calculating masses, but not for high momentum observables.- lattice field theory: action
- Schwinger model
- flavor: 2
- critical phenomena
- scaling: mass
- operator: Dirac
- operator: spectrum
- meson: dispersion relation
- propagator
- invariance: rotation
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