Generalizations of the Sommerfield and Schwinger models

Abstract

The Sommerfield model with a massive vector field coupled to a massless fermion in 1+1 dimensions is an exactly solvable analog of a Bank-Zaks model. The "physics" of the model comprises a massive boson and an unparticle sector that survives at low energy as a conformal field theory (Thirring model). We analyze generalizations of the Sommerfield model, and the corresponding generalizations of the Schwinger model, with more massless fermions and more vector fields.

14 pages, 1 figure - new references and an expanded discussion added in revised version

References in corpus (1)

• An Unparticle Example in 2D

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