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Grassmann coordinates and Lie algebras for unified models
journal contribution
posted on 2023-05-17, 23:51 authored by Robert DelbourgoRobert Delbourgo, Peter JarvisPeter Jarvis, Roland WarnerRoland WarnerA variety of Lie algebras and certain classes of representations can be constructed using Grassmann variables regarded as Lorentz scalar coordinates belonging to an internal space. The generators are realized as combinations of multilinear products of the coordinates and derivative operators, while the representations emerge as antisymmetric polynomials in the variables and are thus severely restricted. The nature of these realizations and the interconnections between various subalgebras, for N independent complex anticommuting coordinates, is explored. The addition of such Grassmann coordinates to the usual spacetime manifold provides a natural superfield setting for a unified theory of symmetries of elementary particles. The particle content can be further restricted by imposing discrete symmetries (Lie algebra automorphisms). For the case N=5 some anomaly free choices of multiplets are derived through the imposition of specific superfield duality conditions.
History
Publication title
Journal of Mathematical PhysicsVolume
34Issue
8Pagination
3616-3641ISSN
0022-2488Department/School
School of Natural SciencesPublisher
American Institute of PhysicsPlace of publication
Melville, USARepository Status
- Restricted