Infinite-dimensional fermionic symmetry in supersymmetric gauge theories
Dumitrescu, Thomas T.
Journal of High Energy Physics
Springer Berlin Heidelberg
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Dumitrescu, T. T., He, T., Mitra, P., & Strominger, A. (2021). Infinite-dimensional fermionic symmetry in supersymmetric gauge theories. Journal of High Energy Physics, 2021 (8)https://doi.org/10.1007/jhep08(2021)051
Abstract: We establish the existence of an infinite-dimensional fermionic symmetry in four-dimensional supersymmetric gauge theories by analyzing semiclassical photino dynamics in abelian N = 1 theories with charged matter. The symmetry is parametrized by a spinor-valued function on an asymptotic S2 at null infinity. It is not manifest at the level of the Lagrangian, but acts non-trivially on physical states, and its Ward identity is the soft photino theorem. The infinite-dimensional fermionic symmetry resides in the same N = 1 supermultiplet as the physically non-trivial large gauge symmetries associated with the soft photon theorem.
Regular Article - Theoretical Physics, Gauge Symmetry, Scattering Amplitudes, Supersymmetric Gauge Theory
External DOI: https://doi.org/10.1007/jhep08(2021)051
This record's URL: https://www.repository.cam.ac.uk/handle/1810/326809