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The Schwinger model with Wilson fermions in the MFA approach

Authors
Journal
Nuclear Physics B - Proceedings Supplements
0920-5632
Publisher
Elsevier
Publication Date
Volume
47
Identifiers
DOI: 10.1016/0920-5632(96)00151-x

Abstract

We present a detailed analysis, in the framework of the MFA approach, of the critical behaviour of the lattice Schwinger model with Wilson fermions on lattices up to 24 2, through the study of the Lee-Yang zeros and the specific heat. We find compelling evidence for a critical line ending at κ = 0.25 at large β. Finite size scaling analysis on lattices 8 2, 12 2, 16 2, 20 2 and 24 2 indicates a continuous transition. The hyperscaling relation is verified in the explored β region.

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