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The lattice Schwinger model with the SW action | | Ch. Hoelbling
; C. B. Lang
; R. Teppner
; | | Date: |
6 Jul 1998 | | Subject: | hep-lat | | Affiliation: | Boston Univ.), C. B. Lang and R. Teppner (Univ. Graz, Austria | | Abstract: | We perform a model study on the 2-flavor lattice Schwinger model using standard Wilson and ${cal O}(a)$ improved Sheikholeslami-Wohlert (SW) action. We find, that the phase diagram is altered, the critical line shifted closer towards its continuum value $kappa_c=0.25$. 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 $approx 30 %$ CPU-time is highly justified when calculating masses, but not for high momentum observables. | | Source: | arXiv, hep-lat/9807011 | | Services: | Forum | Review | PDF | Favorites | |
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