English

Schwinger Model \`a la Very Special Relativity

High Energy Physics - Theory 2019-09-23 v2 High Energy Physics - Phenomenology

Abstract

In this work, we show that Lorentz invariant theories in 1+11+1 dimensions admit new terms inspired by Very Special Relativity (VSR) theories. We have studied the Schwinger model in VSR. We show the axial current is classically conserved in the presence of a mass term coming from the VSR invariant terms but without standard Lorentz invariant mass. Furthermore, it is shown that both the vector current as well as the axial current are modified with respect to the free case when the fermion is coupled to an external electromagnetic field due to the nonlocal operator present in the theory. The axial anomaly is computed, and we found the same standard topological invariant with a modification in the coefficient.

Keywords

Cite

@article{arxiv.1907.06273,
  title  = {Schwinger Model \`a la Very Special Relativity},
  author = {Jorge Alfaro and Alex Soto},
  journal= {arXiv preprint arXiv:1907.06273},
  year   = {2019}
}

Comments

10 pages, 2 figures. V2: Minor changes, references updated, accepted in PLB

R2 v1 2026-06-23T10:20:41.122Z