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.
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ArXiv ePrint: 1907.12705
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Georgi, H., Warner, B. Generalizations of the Sommerfield and Schwinger models. J. High Energ. Phys. 2020, 47 (2020). https://doi.org/10.1007/JHEP01(2020)047
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DOI: https://doi.org/10.1007/JHEP01(2020)047