Physics – Nuclear Physics
Scientific paper
Nov 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979nuphb.159..141c&link_type=abstract
Nuclear Physics B, Volume 159, Issue 1-2, p. 141-212.
Physics
Nuclear Physics
418
Scientific paper
We present the derivation of the SO(8) supergravity theory by dimensional reduction of the supergravity theory in 11 dimensions to 4 dimensions. It has been found that the equations of motion are invariant under the global non-compact group E7(+7). They can be derived from a family of Lagrangians invariant under a local compact group SU(8). The general procedure to deal with non-compact global internal symmetry without introducing ghosts is discussed in connection with the appearance of an associated compact local symmetry and the use of a non-linear realization of the non-compact group. The supersymmetry transformation rules have been partially derived by dimensional reduction; their complete form follows from the assumption of covariance with respect to E7 and SU(8). We also present briefly the O(N) supergravities N = 7, 6, 5 and explain the symmetry SU(4)×SU(1, 1) found for the O(4) supergravity.
Laboratoire propre du CNRS, associé à l'Ecole Normale Supérieure et à l'Université de Paris-Sud. Postal address: 24 rue Lhomond, 75231 Paris cedex 05, France.
Cremmer Eugene
Julia Bernard
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