Supersymmetric structure of space-time and matter: superon-graviton model

A unified description of space-time and matter is proposed by using a single irreducible representation of SO(10) super-Poincare algebra (SO(10) SPA). All (observed) elementary particles except the graviton are the (massless) eigenstates of SO(10) SPA composed of fundamental Nambu-Goldstone fermions with spin 1/2, superons associating with the spontaneous breakdown of the supertranslation of the space-time. The systematic investigations of the Standard Model (SM) and SU(5) GUT by using superon diagrams may reveal the generation structure, the stability of the proton, K-0-(K) over bar (0), B-0-(B) over bar (0) and D-0-(D) over bar (0) mixings, CP-violation, the atmospheric and solar neutrino deficits and the absence of the electroweak lepton-flavor mixing. The fundamental action of the superon-graviton model (SGM) for space-time and matter is proposed, which is invariant under a new supersymmetry. (C) 2001 Published by Elsevier Science B.V.